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HJ 2045-2014

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HJ 2045-2014English809 ASK Days<=6 Technical specifications for petroleum refining industry wastewater treatment Valid HJ 2045-2014
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Detail Information of HJ 2045-2014; HJ2045-2014
Description (Translated English): Environmental Protection
Sector / Industry: Environmental Protection Industry Standard
Classification of Chinese Standard: Z23
Classification of International Standard: 13.060.40
Word Count Estimation: 31,378
Date of Issue: 12/19/2014
Date of Implementation: 3/1/2015
Quoted Standard: GB 150; GB 12348; GB 18484; GB 18597; GB 18598; GB 50003; GB 50007; GB 50009; GB 50010; GB 50011; GB 50014; GB 50016; GB 50017; GB 50033; GB 50037; GB 50046; GB 50058; GB 50068; GB 50069; GB 50108; GB 50141; GB 50160; GB 50191; GB 50202; GB 50203; GB 5020
Drafting Organization: China National Petroleum Co., Ltd. Petrochemical Research Institute
Administrative Organization: Ministry of Environment Protection
Regulation (derived from): Ministry of Environmental Protection Announcement 2014 No. 84
Issuing agency(ies): Ministry of Environmental Protection
Summary: This Standard specifies the petroleum refining industry waste water treatment project design, construction, inspection and operation management of technical requirements. This Standard applies to petroleum refining enterprise wastewater treatment project,

HJ 2045-2014
Technical specifications for petroleum refining industry wastewater treatment
People's Republic of China National Environmental Protection Standards
Petroleum refining industry Wastewater Treatment Project Technical Specifications
Technical specifications for petroleum refining industry wastewater
treatment
Issued on:2014-12-19
2015-03-01 implementation
Issued by the Ministry of Environmental Protection
I directory
Preface II
1. Scope ..1
2 Normative references ..1
3 Terms and definitions .3
4 Design of water quality and water ..4
5 ..7 general requirements
6 ..8 Process Design
7 main process equipment and materials .20
8 detection and process control 20
9 Main aided engineering .21
10 labor safety and occupational health ..22
11 22 Construction and Acceptance
Operation and maintenance 12 26
Foreword
To implement the "People's Republic of China Environmental Protection Law" and "People's Republic of China Water Pollution Prevention Law" to regulate oil
Refining industry wastewater treatment project design, construction and operation management, prevention and control of environmental pollution, protect the environment and human health, system
The final version of the standard.
This standard specifies the technical requirements of the oil refining industry wastewater treatment project design, construction, inspection and operation management.
This standard is a guiding standard.
This standard is the first release.
This standard is developed by the Ministry of Environmental Protection Science, Technology organization.
This standard is mainly drafted by: China National Petroleum Corp. Oil Chemical Research Institute, China Petroleum Engineering construction
Set design company Dalian Branch, China Environment Federation Technical Standards Environmental Studies Committee, Yu-Star Technology Development (Shenzhen
Shenzhen) Co., Ltd.
The Ministry of Environmental Protection Standards December 19, 2014 for approval.
This standard since March 1, 2015 implementation.
The standard explanation by the Ministry of Environmental Protection.
1 petroleum refining industry Wastewater Treatment Project Technical Specifications
1 Scope
This standard specifies the petroleum refining industry wastewater treatment project design, construction, inspection and operation management of technical requirements.
This standard applies to petroleum refining enterprise wastewater treatment project, as environmental impact assessment, feasibility studies, design,
Construction, installation, commissioning, acceptance, operation and supervision of the technical basis.
2 Normative references
The standard content of the following documents cited in the articles. For undated references, the effective version applies to this
standard.
GB 150 Pressure Vessel
GB 12348 industrial enterprises of environmental noise emission standard plant boundary
GB 14554 standard malodorous emissions
GB 18484 Hazardous Waste Incineration Pollution Control Standard
GB 18597 Hazardous Waste Storage Pollution Control Standard
GB 18598 Hazardous Waste Landfill Pollution Control Standard
GB 50003 Code for Design of masonry structures
GB 50007 Code for design of building foundation
GB 50009 building structural load specifications
GB 50010 Design of Concrete Structures
GB 50011 Seismic Design of Buildings
GB 50014 outdoor drainage design specifications
GB 50016 architectural design code for fire protection
Design of steel structures GB 50017
GB 50033 architectural lighting design standards
GB 50037 Code for design of building ground
GB 50046 Code for anticorrosion design of industrial buildings
GB 50058 explosion hazardous environment design of electric installations
50068 building structure GB unified standard for reliability design
2GB 50069 Water Supply and Drainage Structural design code
GB 50108 Technical code for waterproofing of underground works
GB 50141 structures of water supply engineering construction and acceptance
GB 50160 fire protection design of petrochemical enterprises
GB 50191 Code for seismic design of structures
GB 50202 foundation engineering foundation construction quality acceptance
Construction Quality Acceptance GB 50203 masonry structure specification
GB 50204 Construction Quality Acceptance of Concrete Structure Engineering
Steel Engineering Construction Quality Acceptance GB 50205
GB 50206 Construction Quality Acceptance of Timber Structure Engineering
GB 50231 mechanical equipment installation construction and acceptance of universal norms
GB 50235 industrial metal pipeline construction norms
GB 50254 electrical low-voltage electrical equipment installation engineering construction and acceptance
GB 50255 electric equipment installation engineering power converter equipment for construction and acceptance
GB 50256 electrical equipment installation engineering construction and acceptance of electric device
GB 50257 electrical equipment installation engineering explosion and fire hazard electrical equipment installation and acceptance
GB 50268 and drainage in construction and acceptance
GB 50275 fans, compressors, pumps, installation engineering construction and acceptance
GB 50300 Construction Quality Acceptance of uniform standards
GB 50334 municipal sewage treatment plant construction quality acceptance
GB 50345 roofing project technical specifications
GB/T 50087 Industrial Enterprise Noise Control Design Specification
GB/T 50934 Petrochemical engineering seepage technical specifications
GB Z 2.1 Workplace Hazardous Occupational Exposure Limits - Part 1: Chemical hazardous agents
GB Z 2.2 Workplace Hazardous Occupational Exposure Limits - Part 2: physical factors
CECS 117 Water Supply and Drainage Design of concrete structures deformation joint procedures
CECS 138 Water Supply and Drainage Design of reinforced concrete structures procedure Pool
CJJ 60 urban sewage treatment plant operation, maintenance and safety technical regulations
HJ 2010 film biological wastewater treatment engineering technical specifications
3HJ 2025 hazardous waste collection storage and transportation Technical Specifications
SH 3017 petrochemical production design
SH 3043 petrochemical equipment and piping in surface color and identification requirements
SH 3501 Petroleum and Chemical combustible medium steel pipeline construction and acceptance
SH/T 3022 petrochemical equipment and pipeline corrosion coating design specifications
SH/T 3053 petrochemical enterprises overall layout design specifications
JB/T 8471 baghouse technical requirements for installation and acceptance
JB/T 8536 ESP technology mechanical installation conditions
"Construction project environmental protection facilities in the acceptance monitoring technical requirements" (UNCED [2000] 38)
"Acceptance of completed construction projects management approach" (SEPA Order No. 13)
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1 petroleum refining industry petroleum refining industry
It refers to the crude oil, heavy oil and other raw materials to produce gasoline fractions, diesel fractions, fuel oil, petroleum wax, petroleum asphalt, lubricating
Oil and petrochemical raw materials such as industrial enterprises or production facilities.
3.2 petroleum refining industry waste petroleum refining industry wastewater
Refers to the petroleum refining industry wastewater generated in the production process, including the production of waste, pollution, rain (mixed with wastewater
Processing), sewage, cooling water blowdown, chemical water system of water sewage water, steam generator blowdown water, waste heat boiler
Sewage water. Not including refineries owned power plants, boilers and waste water services to its water chemistry of water sewage water.
3.3 Wastewater process wastewater
Refers to the production process in the petroleum refining industry in direct contact with the production of material discharged from the production plant effluents. Production waste
Water is wastewater, sulfur-containing waste water, salt water and the like.
3.4-contaminated stormwater polluted rainwater
It means that contaminated material does not meet emissions standards rain.
3.5 of FCC regenerator flue gas desulfurization wastewater flue gas desulfurization effluent of FCC regenerator
Means of FCC regenerator flue gas desulfurization wastewater emissions.
3.6 grease oil separation
It refers to the use of the density difference between oil and water separation to remove oil in wastewater suspension process.
43.7 coagulation coagulation
It means adding coagulant, done under certain conditions water hydrolysis, condensation reaction, the colloidal dispersion destabilization and cohesion
process.
3.8 flocculation flocculation
Refers to the complete cohesion colloidal under certain water conditions collide with each other, adding a small amount of flocculant aggregation or coagulation to form a more
Process large floc particles.
3.9 Flotation air floatation
Refers to a large number of micro air bubbles generated by some method, the adhesion of water and destabilization of colloidal particles suspended in the water floating solid-liquid
A process in separation.
3.10 Hydrolysis Acidification hydrolytic acidification
It means under anaerobic conditions for the complex structure of the insoluble or soluble organic polymer after hydrolysis and acid production, into
Simple low-molecular organic material in the process.
3.11 hypoxia anoxic zone
Means a non-oxygenated pool (area), dissolved oxygen concentration is generally 0.2 ~ 0.5mg/L, the main function is to carry out denitrification.
3.12 aerobic zone aerobic zone
Refers to the oxygenated pool (area), dissolved oxygen concentration is generally not less than 2mg/L, the main function is the degradation of organic matter and ammonia nitrogen nitrification.
3.13 depth treatment advanced treatment
It means the further processing of the biological treatment of pollutants in water purification processes.
4 Design of water quality and water
4.1 Wastewater origin and classification
Petroleum refining industry has major emitters of wastewater: wastewater, sulfur-containing waste water, salt water and the like. The main sources of wastewater
And classification are shown in Table 1.
Table 1 Main sources of wastewater and classification
Production unit means drainage classification
Atmospheric and vacuum
Electric desalting saline wastewater tank
Oily water separator overhead sulfur wastewater
FCC naphtha sulfur waste water tank drain
5 condensed sulfur wastewater drainage tank
Regeneration FGD waste water salinity
Waste heat boiler drum drainage of oily wastewater
Delayed Coking
Coking coke cooling tower water oily wastewater
Taqie coking coke water oily wastewater
Contact cooling tower water separator cut water oily wastewater
Fractionator overhead separating tank separating sulfur water drainage
Catalytic reforming
Sulfur-containing waste water drainage and gas separator
Vacuum condensate containing sulfur waste
Reforming catalyst and then washed with water and saline wastewater angry
Hydrocracking
Fractionator sulfur wastewater
Process piping guide condensate drain, cut raw water tank, water sampling port discharge of oily wastewater
The catalyst was washed with water and then angry saline wastewater
Hydrotreating
Sulfur-containing wastewater stripper
Process piping guide condensate drain, cut raw water tank, drip sampling port and other oily wastewater
The catalyst regenerator saline wastewater
Oxidized bitumen
Sewage tank drainage of oily wastewater
Sulfur bituminous molding cooling water wastewater
Ketone ketone benzene dewaxing recovery column of oily wastewater drainage
Clay refining slag filter and water separator tank water cut oil wastewater
Lubricant furfural extraction tower drainage dewatering of oily wastewater
Sulfur recovery unit sulfur acid gas condensate wastewater
Sour water stripping sulfur removal water oily wastewater
Crude Oil Tank Farm Water Tank cut oily wastewater
4.2 Design of Water
4.2.1 Water wastewater treatment plant design should include: the amount of wastewater, sewage capacity, the amount of stormwater pollution and unforeseen wastewater.
4.2.2 Wastewater treatment plant design capacity shall be the sum of the following determination:
a) the amount of wastewater should by all means a continuous process of wastewater or wastewater lift stations and wastewater intermittently comprehensive determination, and
6 can be calculated as follows:
) T (QQaQ jji   (1)
Where:
Q-- production volume of wastewater (m3/h);
Qi-- each process unit of the continuous discharge of wastewater (m3/h);
Qj-- adjusting the amount of waste water discharged within the intermittent time (m3/h);
t-- intermittent water treatment time (h), preferably 2 to 3 times adjustment time;
tj-- adjust the amount of wastewater intermittently occur within the time continuous drainage time (h);
a-- unpredictable factor, taking 1.1 to 1.2.
b) the amount of sewage shall determine the relevant provisions of GB 50014.
c) the amount of contaminated stormwater should press a rainfall contaminated stormwater and flood storage facilities total volume and determine the emptying time use under
Calculated as follows:
SS
S 1000t
HFQ  (2)
Where:
QS-- contaminated stormwater flow (m3/h);
FS-- polluted area (m2);
HS-- rainfall depth (mm), should take 15mm ~ 30mm;
tS-- contaminated rainwater storage tanks emptying time (h), appropriate for the 48h ~ 96h.
d) unforeseen 10% to 15% by volume of wastewater during the process device should have selected the amount of wastewater.
4.2.3 When the above data are not available water, refinery wastewater treatment plant can be designed to scale crude oil processing volume of 0.6 times to 0.7
Times OK.
4.2.4 oil refining enterprises maximum allowable displacement, shall comply with the relevant national and industry standards, and should be consistent with the project
Environmental impact assessment requirements.
4.3 Design Quality
4.3.1 Wastewater treatment plant influent water quality should be designed according to each device displacement, drainage water quality data to determine the weighted average calculation. no
When relevant information, according to Table 2 selection.
4.3.2 Main and all inferior heavy oil processing enterprises, and its wastewater treatment plant influent water quality design can refer to Table 2.
7 Table 2 wastewater treatment plant design water quality indicators
No. Parameter Unit Control Index
1 pH - 6 ~ 9
2 temperature ℃ ≤40
3 petroleum mg/L ≤300
4 sulfide mg/L ≤20
5 Chemical oxygen demand (CODCr) mg/L ≤800
6 volatile phenol mg/L ≤30
7 Ammonia mg/L ≤50
8 SS mg/L ≤300
9 BOD5/CODCr - ≥0.3
4.3.3 Wastewater treatment plant influent water temperature should be 15 ℃ ~ 40 ℃.
4.3.4 frequent fluctuations in water quality, easy impact of wastewater treatment plant operation apparatus for waste water to be collected separately, transported and disposed
Corresponding online analytical instruments and cutting the waste water treatment plant waste water tank accident (pool) facility.
5 general requirements
5.1 General provisions
5.1.1 Construction of oil refinery wastewater treatment project, shall comply with the provisions of this standard, it must also comply with national capital construction
Set up procedures as well as national and local regulations and standards.
5.1.2 Wastewater Treatment petroleum refining industry should production conditions and development plan as the basis, to implement the national industrial policy
And industrial pollution control technology policy, environmental protection and regional planning where site, combining urban development planning, co-ordination of waste
Water pretreatment and focus on existing and planned change, the relationship between expansion.
5.1.3 oil refining enterprises should actively adopt cleaner production technology, improve production technology, improve circulation efficiency and reduce waste
Generation and emissions of water.
5.1.4 Petroleum refining industry wastewater treatment should follow the principle of decontamination triage, sewage pollution of partition.
5.1.5 Wastewater Treatment venue pollutants are advised by a closed transport facilities.
5.1.6 The treated wastewater should be consistent with the environmental impact assessment approval documents and related emissions standards.
5.1.7 Wastewater Treatment petroleum refining industry should be supporting the construction of secondary pollution prevention facilities, to ensure the noise, the stench, the danger
Waste to meet the GB 12348, GB 14554 and HJ 2025 and other relevant environmental standards.
85.1.8 wastewater treatment plant should be done in accordance with anti-seepage treatment GB/T 50934 and other relevant environmental standards, in order to avoid contamination of groundwater resources
source.
5.1.9 Water pollution control project online monitoring system should be installed in accordance with the relevant provisions.
5.2 site selection
5.2.1 Wastewater treatment plant site selection, should be consistent with GB 50014, GB 50160 and SH/T 3053 requirements.
5.2.2 Wastewater treatment plant should be arranged on the upwind side of the plant and the lower the minimum annual frequency of wind direction, and should stay away from environmentally sensitive areas.
5.2.3 Wastewater treatment plant should not affect the flood and flood control standards should be the same plant.
5.3 General Layout
5.3.1 Wastewater treatment plant layout should be consistent with GB 50014 and GB 50160 of the relevant provisions.
5.3.2 Wastewater treatment plant layout should meet the process requirements, and should be combined with the wind, the total discharge outlet location, terrain, danger
The degree of risk, fire safety distance and other factors, according to the functions the relative concentration of the purge relative separation arrangement.
5.3.3 Wastewater treatment field between each treatment structure should be arranged by gravity flow, to minimize the number of upgrade.
5.3.4 each treatment should be considered to calculate the head loss between the structures along the line loss, head loss and the loss of local structures,
And should leave some safety factor safety factor may be 10% to 20% of the total head loss selection.
5.4 project constitutes a
5.4.1 Wastewater Treatment petroleum refining industry by the pretreatment of wastewater engineering and integrated wastewater treatment project components.
5.4.2 Wastewater Pretreatment includes electric desalting wastewater pretreatment project, a sulfur-containing wastewater pretreatment engineering, spent caustic wastewater pre
Treatment works, gasification wastewater pretreatment works.
5.4.3 Integrated wastewater treatment project includes the main project, aided engineering and production management facilities.
a) the main project includes wastewater treatment, sludge treatment and disposal and waste gas treatment system.
1) waste water treatment includes physical and chemical, biochemical and treatment system.
2) sludge treatment and disposal of sludge reduction including treatment and final disposal systems.
3) exhaust gas processing includes collection, transportation and processing systems.
b) ancillary works including electrical, telecommunications, building and construction, fire, field area roads and other systems.
c) production manager including control rooms, analysis laboratories, office space, and so on duty.
6 Process Design
6.1 General provisions
6.1.1 The wastewater treatment system should be divided according to the water quality of wastewater, treated water quality requirements and other factors.
96.1.2 oily salt water mixing process, select the appropriate sub-quality treatment programs take full account of the total emissions of the wastewater project indicators, waste
Water salinity, water quality and waste water whereabouts requirements, wastewater treatment difficulty, emission standards and other factors, it is determined after technical and economic comparison.
6.1.3 Wastewater treatment plant core facilities, such as flotation, pool acid hydrolysis, biochemical pool, etc., should be at least two series of design and
The series should be set up between China Unicom necessary piping.
6.1.4 FCC regenerator flue gas desulfurization waste water should be treated separately to meet the wastewater discharge standards.
6.2 wastewater pretreatment plant
Electric desalting wastewater 6.2.1 Crude Oil Unit should be near breaking, degreasing, cooling treatment.
6.2.2 The sulfur-containing waste water should be used to stripping treatment, post-processing application for desalting water, catalytic rich gas is washed with water or other workers
Art of water, and the recycling rate should be not less than 65%, the remaining part is discharged to waste water treatment plant for centralized treatment.
Wastewater should 6.2.3 gasification apparatus stripped settlement process.
6.2.4 Delayed coking unit should be sealed coke cooling water recycling, coke cut water should be recycled.
6.2.5 paraffin and asphalt machine molding machine cooling water should be recycled.
6.2.6 should adopt the spent caustic wastewater biological method, wet oxidation pretreatment methods.
6.2.7 acids, bases after physicochemical treatment of wastewater should be discharged into the wastewater treatment plant for centralized treatment.
6.2.8 Tank water tank should be set to automatically cut water cut, cut water tank, drain cleaning, tank cleaning water should be at a pre-degreasing
Management.
6.3 Route Selection Process
6.3.1 Petroleum refining industry wastewater treatment process shown in Figure 1.
1 petroleum refining industry wastewater treatment process flow diagram
6.3.2 recommend a process unit processes such as shown in Table 3, it is recommended but not limited to the following process.
Table 3 wastewater treatment unit recommended process
Recommended Process Technology unit
Physico-chemical treatment conditioning tank (pool) grease trap → → → homogeneous pool and pool → flotation tank
Biological treatment
A process: biochemical pool → secondary sedimentation tank
Process II: biochemical pool pool acid hydrolysis → → secondary sedimentation tank
Process III: pool acid hydrolysis → CAST pool acid hydrolysis process → → A/O biochemical pool → secondary sedimentation tank
Process four: A/O or A/O/O biochemical pool (pool of powdered activated carbon) → secondary sedimentation tank
Process V: oxidation ditch → secondary sedimentation tank
Advanced Treatment
A process: three pools turbidity monitoring →
Process II: biological treatment stage secondary settling tank canceled after monitoring method using MBR efflux.
Process III: three turbidity → filtration tank (tank) → ozone advanced oxidation pond → → monitoring, etc. BAF pool
Note 1: For the processing of inferior heavy oil blending a lower proportion of the refinery, a recommended biological treatment process; for processing high blending ratio of low-quality heavy oil refinery, oil when saline wastewater
When mixing the biological treatment, biological treatment process recommended two, three, four; when sub-quality oil-saline wastewater treatment, oily wastewater treatment system recommended two biological treatment processes, including
Salt wastewater treatment system recommended biochemical process three, four, five.
Note 2: The biochemical process I and II, biochemical pool can use A/O, A/O/O or sequencing batch activated sludge process and on the basis of the film derived mud mixing.
Note 3: The routing depth of treatment should be selected according to specific indicators wastewater discharge standards.
6.4 grill well
6.4.1 Wastewater treatment plant should be set up to collect field artesian well water grid, the grid should adopt mechanical grille.
6.4.2 grid gridlines gap should be based on the lift pump and subsequent treatment facilities required to determine, is preferably 5mm ~ 20mm.
6.4.3 grille main material should be wear resistant, anti-aging.
6.4.4 grill well should be sealed and set the gas pipeline will be introduced into the exhaust gas treatment facilities.
6.4.5 grille design should also comply with the provisions of GB 50014.
6.5 adjustment tank (pool)
6.5.1 Wastewater treatment plant should be set to the conditioning tank (pool) and a separate accident water storage facilities.
6.5.2 adjustment tank (tank) should be based on water quality, water quantity change law, calculated using the graphic method; no waste water when the water quality,
Water when the information changes, according to the design of 16h ~ 24h calculate and determine the amount of water in an amount of not less than 2 seat.
6.5.3 accident tank (pool) Depending on the setting of the volume of inflow pipe network considerations, when unable to obtain the above information,
It can be designed to determine the amount of water 8h ~ 12h.
6.5.4 Wastewater treatment plant accident tank (tank) should be set to the whole plant emergency pool (tank) of gravity or pumping pipe.
6.5.5 adjustment of oily wastewater tank (tank) should be set to receive oil, sludge facilities, fire facilities.
6.5.6 When adjusting the tank (tank) in the waste water treatment facility to the next level by gravity flow regulation and storage capacity should subtract the actual adjustment
Tank (pool) Minimum operating volume occupied by the level below.
6.6 grease traps
6.6.1 oil-water separation facilities can advection grease traps, grease traps or swash plate type vertical flow of grease traps and the like.
6.6.2 The separated oil in cold areas or freezing point above ambient temperature, oil grease traps where the oil collecting pipe, sewage
Oil-collecting pool heating facilities shall be provided.
6.6.3 grease traps and drain pipes dry Interchange, plugging water should be set, seal depth of not less than 250mm; distance from wall 5.0m
Less water plugging, manhole covers and seat cover joints should be sealed, and covers not have holes.
6.6.4 grease trap should be set hard burning material cover, and should set the gas pipeline will be introduced into the exhaust gas treatment facilities.
6.6.5 advection grease trap design should meet the following requirements:
a) appropriate for the HRT 1.5h ~ 2h.
b) the level of the flow rate should be adopted 2mm/s ~ 5mm/s.
c) single-cell pool width should be less than 6.0m, an aspect ratio of not less than 4.
d) effective depth should not exceed 2.0m, ultra shall not be less than 0.4m.
e) the pool should be established chain plate scraping the oil scraper, squeegee movement speed should be less than 1m/min.
f) mud tubes should be corrosion-resistant, should not be less than the nominal diameter DN200, tube end should be set Kiyomichi facilities.
g) collecting pipe nominal diameter is preferably DN200 ~ DN300, its total series length should not exceed 20m, pipe series number should not be
More than four.
6.6.6 swash plate grease trap design should meet the following requirements:
a) swash plate board member should be corrosion-resistant, flame-type, smooth surface, hydrophilic oleophobic, high temperature water and low pressure steam cleaning
s material.
b) should be set swash plate skimmer and cleaning grease traps and other facilities.
c) hydraulic loading surface is preferably 0.6m3/(m2 · h) ~ 0.8m3/(m2 · h).
6.7 and pools
6.7.1 Wastewater treatment plant should be set up in the pool and, by adding an acid or base to adjust the pH of the wastewater to a suitable value for the subsequent
Processing unit suitable pH value of the environment.
6.7.2 and pool water volume should be according to the residence time 10min ~ 30min OK.
6.7.3 and pool facilities should be set up mechanical agitation.
6.7.4 The anti-corrosion measures should be adopted and pool, select the location acid dosing should avoid corrosion mixing equipment.
6.8 homogenization tank (pool)
6.8.1 Wastewater treatment plant should be set up homogeneous tank (pool) and homogenized tank (pool) and the conditioning tank (pool) should be provided separately.
6.8.2 homogenization tank (pool) volume data should be determined according to the water quantity, water quality changes in data or reference to similar enterprises. When there is no
When the law to obtain such information, according to the design of water volume 8h ~ 12h of calculation.
6.8.3 homogenization tank (tank) should be set up within the air force or stirring facilities, to ensure that water quality is fully balanced.
6.8.4 homogenization tank (pool) The use of air agitation facility, each 100m3 effective volume of the gas should press 1.0Nm3/min ~
1.5Nm3/min design.
6.8.5 homogenization tank (pool) should be closed, and set the gas pipeline will be introduced into the exhaust gas treatment facilities.
6.9 Coagulation flocculation
6.9.1 coagulants, flocculants choice should be considered local drug supply, technical and economic situation, and by reference to the similar water
Experience in handling or field test to determine the quality of the refinery.
6.9.2 coagulant, flocculant mixing pipe can be mixed with mechanical stirring and mixing.
6.9.3 coagulant, flocculant dosing by mechanical mixing should meet the following requirements:
The reaction time is a) Coagulation should be less than 2min; flocculation reaction time under running water quality under similar conditions of empirical data
Or experimental data to determine; when there is no data, response time can be 10min ~ 20min.
b) mechanical flocculation may be single-stage or multi-stage trapezoid rectangle mixers, blenders should take anti-corrosion measures.
c) Coagulation paddle water at the edge of the line speed should be 0.5m/s; flocculation water paddle at the edge of the line speed should be 0.2m/s,
And should adopt variable speed agitator.
d) the pool should be set to prevent the flow of short-circuit facilities.
6.10 flotation tank
6.10.1 General provisions
a) before the wastewater treatment plant should set a biological treatment or two flotation based on water quality, and should be no more than two.
b) should be set before the flotation tank and flocculation agent mixing facilities.
c) Each level flotation tank should not be less than two, and each one should be able to separate the operation and maintenance.
d) flotation tank should be set to cover flame-retardant material, and should be set to introduce the exhaust gas pipe gas treatment facilities.
e) flotation tank water should be set to adjust the water level facilities.
f) should be located at the bottom of the flotation tank sludge facilities.
6.10.2 dissolved air flotation
a) dissolved air flotation process should adopt partial reflux pressurized dissolved air mode, which should adopt a reflux ratio of 30% to 50%. Each gas
Floating pool should configure a station dissolved gas cylinders.
b) dissolved gas cylinders shall be designed to meet the following requirements:
1) dissolved into the wastewater tank temperature should not exceed 40 ℃.
2) dissolved gas cylinders operating pressure is preferably 0.3MPa ~ 0.7MPa (gauge pressure); flotation is a time when, dissolved gas cylinders
The operating pressure of not less than 0.6MPa (gauge pressure).
3) the amount of air can wastewater reuse 15% to 20% of the traffic (by volume) calculations.
4) waste water within the residence time of dissolved gas cylinders should adopt 1min ~ 3min.
5) should be located within the dissolved gas and water mixing tank facilities and water control facilities.
6) dissolved gas cylinders should be set safety valve, vent valve, pressure gauge.
c) flotation tanks should be located release of dissolved air and clogging.
d) flotation tank may be rectangular or circular. Rectangular flotation tank design should meet the following requirements:
1) export should be controlled at a flow rate of flocculation paragraph 0.2m/s.
2) single-cell pool width of not more than 6.0m, the separation zone length should not exceed 12.0m.
3) flotation separation time is preferably 30min ~ 45min.
4) waste water flow rate at the level of flotation separation tank not more than 10mm/s.
5) the pool should be located scraping residue machine, the moving speed of the blade is preferably 1m/min ~ 2m/min.
6.10.3 aeration flotation
a) aeration flotation should adopt impeller loose air flotation.
b) Impeller loose air flotation resulting bubble diameter should be less than 500μm.
c) aeration impeller flotation tank effective depth of not more than 2.0m, an aspect ratio of not less than 4.
6.11 hydrolysis acidification tank (pool)
6.11.1 hydrolysis acidification tank (pool) in the pool of effective volume should be determined in accordance with the HRT of wastewater, usually 4.0h ~
8.0h.
6.11.2 hydrolysis acidification tank (pool) pool-sectional area of the flow rate is determined on the rise according to the pool water. Upflow velocity should ensure that pollution
Mud is not deposited at the same time not to make the activated sludge loss; control in general 0.5m/h ~ 1.8m/h.
6.11.3 hydrolysis acidification tank (pool) of the effective depth should be not less than 4.0m, the temperature should be controlled at 20 ℃ ~ 40 ℃.
Cloth should be located 6.11.4 hydrolysis acidification tank (pool) in the water and mud mixing facilities, prevent sludge sedimentation.
Sludge should be set facilities 6.11.5 hydrolysis acidification tank (pool) inside.
6.12 biochemical pool
6.12.1 General provisions
a) biochemical pool water in oil content should be less than 20mg/L, sulfide content should be less than 20mg/L.
b) should set the biochemical pool water or waste water according to chemical facility anti-foaming properties.
6.12.2 A/O biochemical pool
a) A/O biochemical pool design parameters should be run by the test data or similar wastewater OK when no similar data,
Selected according to the following data:
1) BOD5 sludge loading 0.05kg/(kg [MLSS] · d) ~ 0.15kg/(kg [MLSS] · d).
2) TN sludge load of not more than 0.05kg/(kg [MLSS] · d).
3) average concentration of mixed liquor suspended solids 2.5g [MLSS] /L~4.5g [MLSS]/L.
4) sludge age appropriate for the 11d ~ 23d.
5) sludge reflux ratio should be determined based on the calculation, and is preferably 40% to 200%.
6) Take sludge yield 0.3kg [VSS]/kg [BOD5] ~ 0.6kg [VSS]/kg [BOD5].
7) should be set to a mixture of biochemical pool facilities reflux and reflux ratio calculated and determined in accordance with the influent concentration of total nitrogen.
b) the use of sludge load calculation method, the effective volume of the reaction cell values should also satisfy the BOD5 load and total nitrogen load
The results are calculated.
c) residual alkalinity aerobic zone mixture of not less than 80mg/L (as CaCO3), the alkalinity should be used when there is insufficient carbon
Sodium alkalinity supplement.
d) biochemical pool should be set to supplement phosphorus salt facilities.
e) should be set up under anoxic zone was stirred or plug-flow facilities, hybrid power is preferably 3W/m3 ~ 8W/m3.
6.12.3 Sequencing Batch Reactor
a) Number of Rooms sequencing batch activated sludge bioreactor process should not be less than two.
b) sequencing batch activated sludge process bioreactor design parameters should be transported in accordance with the actual test or similar wastewater
Line data to determine when there is no data design parameter values should be within the following ranges:
1) BOD5 sludge loading 0.08kg/(kg [MLSS] · d) ~ 0.15kg/(kg [MLSS] · d); volume load
0.20kg/(m3 · d) ~ 0.60 kg/(m3 · d).
2) TN sludge load of not more than 0.05kg/(kg [MLSS] · d).
3) average concentration of mixed liquor suspended solids 2.5g [MLSS] /L~5.0g [MLSS]/L.
c) a combination of scheduled run cycle sequencing batch activated sludge process and the various stages of each cycle, should be based on waste water
Quality, water treatment and water quality and operating requirements determined comprehensively.
d) the reaction cell should be rectangular, the depth is preferably 4.0m ~ 6.0m. Intermittent water reactor pool length to width ratio is preferably
1: 1 to 2: 1, continuous water should be 2.5: 1 to 4: 1.
e) reaction tank drainage should adopt Decanter, Decanter drainage drainage capacity should meet the requirements of time.
f) the reaction vessel should be provided with fixed accidental discharge facilities, and set up the water level at the end of the drainage.
g) the reaction cell should be set up to prevent scum outflow facility.
h) sequencing batch activated sludge process with automatic control system should be run.
6.12.4 Oxidation Ditch
a) Oxidation Ditch aeration equipment can aeration plate spinning, aeration brush and so on.
b) When the aeration plate spinning, rotating brushes, ultra-high oxidation ditch is preferably 0.5m ~ 1.0m.
c) oxidation ditch when using brush aerator, which should be effective depth of 3.0m ~ 4.0m, when using rotating disk aerator, which has
Efficient water depth of not more than 4.0m.
d) the level of internal oxidation Gully flow rate of not less than 0.3m/s.
e) oxidation ditch water should be set to adjust the water level of the weir plate.
6.13 secondary settling tank
6.13.1 The two main design parameters settling tank shall be determined by tests or actual operating parameters; when there is no data, secondary settling tanks should be taken
The following design data:
a) surface hydraulic loading should take 0.5m3/(m2 · h) ~ 0.6m3/(m2 · h).
b) secondary settling tank sludge water content of 99.2% to 99.6%.
c) should adopt effective depth of 2.5m ~ 4.0m, ultra shall not be less than 0.3m.
6.13.2 secondary settling tanks should be provided with a surface skimming facilities.
6.13.3 diameter of more than 30.0m of secondary settling tanks, scraping Xini should be set.
6.13.4 sedimentation tank should not be less than 2 seat. When deeper than the diameter of less than six circular sedimentation tanks and scraper overhaul have contingency measures, Shen
1 lake pool can seat design.
6.14 Advanced Treatment
6.14.1 turbidity
In order to meet the overall stability of the secondary settling tank effluent compliance requirements or to reduce the amount of ozone advanced oxidation loss of ozone, should further
Turbidity removal, removal of suspended solids and colloidal other pollutants.
a) turbidity should adopt flotation, flocculation, sedimentation, filtration and other methods.
b) In addition to using the flotation process when turbidity, dissolved air flotation should be used, and dissolved air flotation should be in accordance with the contents of the selected 6.10.2.
c) In addition to the use of flocculating when turbidity, flocculation and sedimentation of the design parameters should be based on experimental data or by reference to a similar operation
Test selection.
d) Except when turbidity filtration technology, filter tank (tank) should be designed to satisfy:
1) filter tank (tank) should be based on the form of access to water quality, operation and management requirements, technical economic comparison;
Number of not less than 2 (m).
2) filter should have sufficient strength and corrosion resistance, should choose quartz sand, anthracite.
3) filter tank (pool) filtration rate depending on the forms and filter out of the water to determine the quality, normal filtration rate should not exceed
Over 10m/h, forced filtration rate should not exceed 16m/h.
4) canister (tank) should be set to the necessary monitoring instruments and automation facilities to achieve backwash automation.
5) filter tank (pool) backwash water to be recovered and upgraded to the wastewater treatment plant for the process section for processing.
6) filter tank (pool) backwash water tank effective volume should meet a set of filter backwash water requirements once.
6.14.2 ozonation pool
a) ozonation design parameters should be determined according to the experimental data, but also can be determined by reference to similar projects operating experience.
The contact time b) advanced oxidation pond should select 15min ~ 30min.
c) ozonation pool should be closed and should be set residual ozone exhaust treatment facilities.
d) the water should be taken to meet the follow-up process on the residual amount of ozone requirements.
6.14.3 BAF
a) Biological Aerated Filter design parameters should be determined according to the experimental data, but also can be determined by reference to similar projects operating experience;
Number of not less than two.
b) BAF influent suspended solids of not more than 60mg/L.
c) BAF should be set up water distribution, drainage, aeration facilities; and aeration facilities should be set backwash facilities.
6.14.4 membrane bioreactor
Membrane bioreactor designed to comply with the requirements of HJ 2010.
6.15 Monitoring and efflux
6.15.1 wastewater before discharge should be set up to monitor the pool.
6.15.2 Monitoring the volume of the pool should be calculated according to the amount of waste water 1h ~ 2h.
6.15.3 pool should be set to monitor the on-line monitoring instruments necessary for the pH, COD, ammonia nitrogen, petroleum and other indicators of prison
Measurement.
6.15.4 outer discharge line should be set off valves, flow meters, water and non-compliance should be sent to the venue of the accident tank (pool).
6.15.5 When efflux indicators coliform colonies indicators required, should be set disinfection facilities.
6.16 waste oil recycling
6.16.1 wastewater treatment plant sewage tank should be set on the field generated waste oil is recovered and returned back to the refinery refining, and the number of sewage tank
The amount of not less than two.
6.16.2 sewage tank heating facilities should be set up, should the tank insulation, and the heating temperature is preferably 70 ℃ ~ 80 ℃.
6.16.3 sewage tank rotation period is preferably 5d ~ 7d.
6.16.4 waste oil pipelines should be thermal insulation.
6.17 Dosing
6.17.1 General provisions
a) Dosing should adopt automatic dosing system.
b) between dosing should be jointly built with the agent library.
c) in the inter-dosing liquid medication should set up a separate storage tank and cofferdam.
d) stack height bagged agent is preferably 1.5m ~ 2.0m; storing a large amount of bulk agents can be separated by partitions.
e) reserve depending on the local drug supply, transportation and other conditions determined by the general maximum dosage 7d ~ 15d dosage calculation;
Sodium hypochlorite and other labile agents determined according to their nature.
f) between dosing should be set ventilation facilities, and should prevent the drug from moisture.
g) in the inter-dosing cofferdam, pipe trenches, ditches, etc. should be a corresponding anti-corrosion measures.
h) between dosing winter temperature should not be lower than 5 ℃.
i) dosing pump or cofferdam around Shields should be set to prevent liquid splashing wounding.
j) chemicals should not be transported over long distances through pipelines, chemical storage tanks should be in close proximity.
6.17.2 Dosing System Configuration
a) dosing system basic configuration should include: safety valve, back pressure valve, filter, the pulsation damper, metering pumps check column
Diaphragm pressure gauge, wash interface.
b) Dosing system should set up an alternate dosing pump.
6.17.3 Dosing pipes should be buried trench or aerial installation; when overhead laying pipeline trays set, and should be set in the viewing window on trays
Or viewing port.
6.18 Sludge Treatment
6.18.1 determination of the amount of sludge
a) the amount of sludge should include: the full amount of sludge oil sludge, activated sludge volume, the amount of dross produced by wastewater treatment field.
b) the value of the amount of sludge waste transport system should be in accordance with the case and with reference to the same refinery operating data selection, when no reference data
When wastewater sludge may amount 0.0002m3/m3 ~ 0.0005m3/m3 determined.
c) the amount of activated sludge according to the following formula:
1) Press the sludge age calculated as follows:

VXΔX  (3)
2) Press the sludge yield coefficient, attenuation coefficient and non-biodegradable and inert suspended solids calculated as follows:
) SSfQ (SSVXK) SYQ (SΔX E0VdE0  (4)
Where:
ΔX-- activated sludge quantity (kg [SS]/d);
V-- biological reactor volume (m3);
X-- bioreactor tanks mean concentration of mixed liquor suspended solids (g [MLSS]/L);
θc-- sludge age (d);
Y-- sludge yield coefficient (kg [VSS]/kg [BOD5]), 20 ℃ of 0.4 to 0.8;
Q-- design average daily volume of wastewater (m3/d);
S0-- bioreactor influent BOD (kg/m3);
SE-- biological reactor effluent BOD (kg/m3);
Kd-- attenuation coefficient (d-1);
XV-- bioreactor tanks average concentration of volatile suspended solids mixture (g [MLVSS]/L);
F-- sludge conversion rate of suspended solids should be determined according to the experimental data, the absence of experimental data may take 0.5 to 0.7
(G [MLSS]/L);
SS0-- bioreactor influent concentration of suspended solids (kg/m3);
SSE-- biological reactor effluent suspended solids concentration (kg/m3).
3) the amount of dross suspension according to the following formula:
) SSQ (SSF eo  (5)
Where:
Amount of sludge (kg/m3) F-- suspension produced;
Q-- design average daily volume of wastewater (m3/d);
SS0-- influent concentration of suspended solids (kg/m3);
SSE-- effluent suspended solids concentration (kg/m3).
6.18.2 sludge transport
a) general use dehydrated sludge screw conveyor, belt conveyor or pipeline.
b) transport sludge flow pipe pressure should avoid low break point, bend radius should be not less than 5 times the diameter.
c) conveying the sludge pipeline should be set steam purge port.
d) conveying the sludge pipeline should set highs and lows emptying exhaust valves, and should be set in place clean mouth.
e) When the sludge Sinotrans, should use special sludge transport vehicles, to avoid spilled along the way, stench gas.
6.18.3 sludge dewatering and disposal
a) using centrifugal sludge dewatering machine when the dehydration, the design should meet the following requirements:
1) before entering the sludge dewatering sludge enrichment facilities should be set so that the moisture content is not more than 98%.
2) mechanical dewatering should be considered among the cake transportation facilities and channels.
3) should be set after the sludge dewatering sludge stockyard or storage silos, capacity should be based on the conditions of transport and sludge
Way out OK.
4) the sludge dewatering facility should be set ventilation deodorant. ACH should be not less than 6 times.
5) should be carried out prior to dewatering sludge dosing conditioning.
b) dehydrated sludge can be landfilled, drying or incineration. Sludge, scum and other hazardous waste storage and final disposal
It should be consistent with GB 18598, GB 18597, GB 18484's requirements.
6.19 exhaust gas treatment facility
6.19.1 wastewater treatment plant adjustment tank (pool), grease traps, homogeneous pool (tank), flotation tank, hydrolysis acidification tank (pool) and waste oil
Recycling, sludge treatment facilities, set gas collection and treatment facilities; biological treatment facilities of the Environmental Impact Assessment
Requirements set exhaust gas treatment facilities.
6.19.2 exhaust gas treatment process should be catalytic combustion oxidation, chemical oxidation catalysis, biological method.
After 6.19.3 exhaust gas treatment facility should be organized by exhaust emissions.
6.19.4 gas pipeline shall be designed to drain condensate lows facilities.
7 main process equipment and materials
7.1 Pump
7.1.1 Before entering the wastewater grease traps need to upgrade, it should adopt a positive displacement pump or low speed centrifugal pump.
7.1.2 should adopt the concentrated sludge screw pumps, rotary vane pump delivery.
7.1.3 PAM high viscosity agent should adopt screw conveyed; the remaining liquid medication should be used diaphragm pump delivery.
7.1.4 dosing pump should shift or adjust stroke way to adjust its flow.
7.2 Fan
7.2.1 filter such as the use of backwash blower fan should be used.
7.2.2 biochemical pool, fan selection should be based on homogeneous pool use air pressure, air flow single use, control, noise and maintenance
Maintenance Management and other conditions determined. Under normal circumstances, should use a small amount of wind Roots blower, centrifugal fan air volume should be selected.
7.2.3 Blower several set-demand air temperature, wind, air pressure, the volume of wastewater and pollutant load changes according to supply
To determine the amount.
7.3 Material
7.3.1 After determining wastewater, sludge, waste oil piping material selection should be technical and economic comparison. Wastewater process piping can be
Carbon steel pipe; waste oil, sludge pipe should be made of carbon steel pipe.
7.3.2 pipeline corrosion agent should choose the right pipe material characteristics according to agents. Selection when using ferric chloride plastic
Feed pipe, flow components in a plastic material.
8 Inspection and Process Control
8.1 Instrument Selection
Instrument selection should be determined based on factors such comprehensive nature of wastewater, corrosive material properties and pipe laying conditions.
8.2 Instrument Setup Requirements
8.2.1 General provisions
a) waste water treatment p......
Related standard:   HJ 2051-2016  HJ 2047-2015
   
 
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