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HJ 2047-2015

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Detail Information of HJ 2047-2015; HJ2047-2015
Description (Translated English): Technical specifications for hydrolysis and acidification reactor in wastewater treatment
Sector / Industry: Environmental Protection Industry Standard
Classification of Chinese Standard: Z23
Word Count Estimation: 14,110
Date of Issue: 2015-11-20
Date of Implementation: 2016-01-01
Regulation (derived from): Ministry of Environment Announcement 2015 No.74

HJ 2047-2015
Technical specifications for hydrolysis and acidification reactor in wastewater treatment
National Environmental Protection Standard of the People 's Republic of China
Technical specification for wastewater treatment of hydrolytic acidification reactor
Technical specifications for hydrolysis and acidification reactors
In wastewater treatment
2015-11-20 release
2016-1-1 implementation
Ministry of Environmental Protection released
Directory
Preface ..II
1 Scope of application
2 normative reference documents
3 Terms and definitions 2
Design water and design water quality
5 General requirements .4
6 process design .4
7 Major process equipment and materials
8 detection and process control
Major auxiliary works
10 Labor safety and occupational health
11 construction and acceptance
12 operation and maintenance
Preface
In order to implement the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China on the Prevention and Control of Water Pollution,
Acidification reactor construction and operation management, prevention and control of environmental pollution, environmental protection and human health, the development of this standard.
This standard specifies the process design, main process equipment and materials for the hydrolysis and acidification reactor wastewater treatment works.
Process control, construction and acceptance, operation and maintenance of technical requirements.
This standard is a guiding standard.
This standard is the first release.
This standard is organized by the Ministry of Environmental Protection Science and Technology Standards Division.
The main drafting unit of this standard. China Environmental Protection Industry Association, Tsinghua University, Beijing Environmental Protection Science Research Institute.
The Environmental Protection Department of this standard approves on November 20,.2015.
This standard has been implemented since January 1,.2016.
This standard is explained by the Ministry of Environmental Protection.
Technical specification for wastewater treatment of hydrolytic acidification reactor
1 Scope of application
This standard specifies the process design, inspection and process control, construction and acceptance, operation and maintenance of the hydrolysis and acidification reactor
And other technical requirements.
This standard applies to the use of hydrolytic acidification reactor sewage treatment works, can be used as environmental impact assessment, environmental engineering construction
Facilities, environmental protection and acceptance of post-construction and management of the technical basis.
2 normative reference documents
The contents of this standard refer to the terms of the following documents. For undated references, the latest edition of this document applies
standard.
Electrical equipment for explosive gas atmospheres GB 3836
General rules for safety and hygiene of production processes
Standard for Hazardous Waste Storage Pollution Control
Standard for Pollution Control of Storage and Disposal Site for General Industrial Solid Waste
Specification for Seismic Design of Buildings GB 50011
Code for design of outdoor drainage
Code for design of building water supply and drainage
Code for fire protection of building design GB 50016
Code for design of heating, ventilation and air conditioning GB 50019
Code for design of building floor GB 50037
Code for design of corrosion protection for industrial buildings GB 50046
Code for design of power distribution system for GB 50052
Code for design of lightning protection for buildings GB 50057
Code for structural design of water supply and drainage works of GB 50069
Technical code for waterproofing of underground engineering GB 50108
Code for construction and acceptance of water supply and drainage structures GB 50141
Code for construction and acceptance of concrete structures GB 50204
Code for acceptance of construction quality of steel structure engineering GB 50205
Code for construction and acceptance of building anti - corrosion engineering GB 50212
Code for fire protection in interior decoration design of buildings GB 50222
General specification for construction and acceptance of mechanical equipment installation works GB 50231
Code for construction and acceptance of water supply and sewerage in GB 50268
Specification for Construction and Acceptance of Compressor, Fan, Pump Installation
Standard for Designing Hygienic Standards for Industrial Enterprises
Occupational exposure limits for workplace hazards
Standard for Examination Method of Municipal Wastewater Quality
Technical Code for Operation, Maintenance and Safety of Municipal Wastewater Treatment Plant
Technical specification for preservation and management of water quality samples
Technical specification for sewage treatment engineering of HJ .2014 biological filter
Technical specification for surface water and wastewater monitoring
Technical requirements for environmental protection products - Belt press filters for sludge dewatering
HJ/T 245 Environmental protection products - Technical requirements - Suspension packing
Technical requirements for environmental protection products for HJ/T 250 Rotary fine grids
Technical requirements for environmental protection products
HJ/T 283 Environmental protection products Technical requirements Van filter press and plate and frame filter press
HJ/T 335 environmental protection products technical requirements sludge concentration belt dehydration machine
HJ/T 336 Environmental protection products Technical requirements Diving sewage pump
Technical requirements for environmental protection products - Dosing devices for water treatment
"Construction project (project) completion and acceptance method" (construction construction [1990] 1215)
Measures for the Administration of Acceptance of Environmental Protection for Completion of Construction Projects (State Environmental Protection Administration Decree No. 13)
3 terms and definitions
The following terms and definitions apply to this standard.
3.1 hydrolysis and acidification reactor
Refers to the anaerobic biological reaction control in the hydrolysis and acidification stage, the use of anaerobic or facultative bacteria in the hydrolysis and acidification stage
(Including carbohydrates, fats and lipids, etc.) in the presence of suspended organic solids and biodegradable organisms in the effluent,
Hydrolyzed into dissolved organic matter and biodegradable small molecules, small molecules of organic matter and then under the action of acid bacteria into a swing
Fatty acid wastewater treatment plant.
Up-flow hydrolysis acidification reactor
In a single reactor, the effluent from the bottom of the reactor is uniformly passed from the bottom of the reactor through the sludge layer (average sludge
Concentration of 15g/L ~ 25g/L) rose to the top of the reactor to achieve the process of hydrolysis and acidification, removal of suspended solids and other functions of hydrolysis
Acidification reactor.
3.3 hybrid hydrolysis acidification reactor mixed hydrolysis acidification reactor
A hydrolytic acidification reactor is added to the sludge bed of the upflow hydrolytic acidification reactor.
3.4 complete mixed hydrolysis acidification reactor completely mixed hydrolysis acid
Reactor
The reactor is equipped with a stirring device to completely separate the sewage from the sludge to achieve the hydrolysis and acidification of the reactor, generally followed by precipitation
The pool separates the sewage, sludge and returns the sludge to the hydrolysis acidification reactor.
4 Design water and design water quality
4.1 Design water
4.1.1 Design water should be determined based on the actual measured effluent flow. The test method shall comply with the requirements of HJ/T 91.
4.1.2 urban sewage can not obtain the measured data, the design of water can be based on local water quota, combined with local drainage facilities water
The rate of flat drainage is determined by 80% to 90% of the local water use quota.
4.1.3 industrial wastewater can not obtain the measured data, the design of water can refer to the current industrial water consumption of the relevant provisions of the conversion to determine,
Or according to the same industry with the scale of the existing drainage data to determine the actual ratio.
4.1.4 Industrial Park Concentrated sewage treatment project design flow can refer to the urban sewage design flow to determine the implementation of the method.
4.1.5 industrial wastewater and domestic sewage mixed treatment, the factory or industrial park within the amount of sewage, bathing sewage
OK, should comply with the relevant provisions of GB 50015.
4.1.6 In the shunt system, the flow rate of the hydrolytic acidification reactor shall be determined according to the maximum daily average;
Drainage system, the hydrolysis of acidification reactor should be designed according to the flow of sewage flow, and with the confluence of sewage design flow check, check the sink
Lake time should not be less than 30min. Process set in the adjustment pool and the residence time is greater than 8h, hydrolytic acidification reactor design flow can be
According to the average daily average.
4.1.7 Hydrolysis Acidification Reactor Before and after the water pump, piping and other water supply facilities designed by split system, combined system, respectively, by
The maximum daily average and the highest day when the maximum amount of sewage to determine.
4.1.8 In areas where the groundwater level is high, the amount of groundwater should be considered and the infiltration of groundwater should be determined according to the measured data.
4.2 Design water quality
4.2.1 Design water quality should be determined according to the actual measured effluent quality of the project, or refer to the same industry with the same size of the project emissions
Analogy.
4.2.2 Hydrolytic acidification reactor water quality should meet the following conditions.
1) pH should be 5.0 to 9.0;
2) COD. N. P should be 100 ~ 500. 5. 1;
3) If the biodegradability of sewage is better, COD concentration should be lower than 1500mg/L; if the biodegradability of sewage is poor, COD
Concentration may be relaxed.
4.3 Removal rate of pollutants in hydrolytic acidification reactor
The removal rate of contaminants in the hydrolytic acidification reactor can be found in Table 1.
Table 1 Hydrolysis Acidification Reactor Pollutant Removal Rate
Sewage (waste) water type water quality requirements
Pollutant removal rate
SS * CODCr BOD5
Urban sewage
Biodegradable or better
50% to 80% 30% to 50% 20% to 40%
Beer waste water, slaughtering waste water,
Food waste water, sugar wastewater and so on
Biodegradable better, non
Soluble COD ratio>
60%
50% to 80% 30% to 50% 20% to 40%
Papermaking wastewater, coking wastewater,
Coal chemical waste water, petrochemical waste
Water, tannery wastewater, oil waste
Water, textile dyeing and finishing wastewater,
Including industrial park wastewater
Biodegradable general
Soluble COD ratio
30% to 60%
30% to 50% 10% to 30% 10% to 20%
Other refractory organic wastewater
Biodegradable poor, non
Dissolved COD ratio <
30%
30% to 50% 10% or less 10% or less
* This value is the reference value for the upflow hydrolytic acidification reactor.
5 General requirements
5.1 Hydrolytic acidification reactor is generally applicable to the normal temperature of urban sewage, industrial wastewater and other low concentrations of sewage at the pre-service
Management, can remove suspended solids, degradation of organic matter, improve the biodegradability of sewage.
5.2 Hydrolysis Acidification Reactor The sewage treatment works shall comply with the following provisions.
1) the construction and operation of the waste (odor) gas, sewage, waste residue, noise and other pollutants in the governance and emissions,
Should meet the requirements of environmental impact assessment documents to prevent secondary pollution.
2) storage of sludge, drug storage site should be consistent with the provisions of GB 18599 and GB 18597.
5.3 The vertical design of the hydrolytic acidification reactor should make full use of the original terrain, meet the requirements of earthwork balance and reduce energy consumption.
5.4 Hydrolysis Acidification Reactor When the sewage treatment project is constructed in phases, the site area of the project shall be reserved for the overall processing scale,
And the overall arrangement. Pipe network and underground structures should be built once.
5.5 Hydrolysis Acidification Reactor Sewage treatment works of various pipelines should be arranged to avoid mutual interference, easy to clear and maintenance,
And reasonable layout and overhaul the pipeline, vent line drainage should be reflow treatment.
5.6 Hydrolytic Acidification Reactor The design and construction of sewage treatment works shall be in accordance with the relevant laws and regulations.
Laws and regulations and mandatory standards.
6 process design
6.1 General requirements
6.1.1 Hydrolytic Acidification Reactor types include upgraded hydrolytic acidification reactors, complex hydrolytic acidification reactors and complete
Mixed hydrolytic acidification reactor.
6.1.2 Treatment of urban sewage should be used up-flow hydrolysis of acidification reactor.
6.1.3 When dealing with industrial wastewater, according to the quality of waste water, water, etc. to choose the appropriate hydrolysis of acidification reactor, if the reaction
Slow growth of sludge can be used in complex hydrolytic acidification reactor.
6.2 Hydrolysis Acidification Reactor Wastewater Treatment Process
6.2.1 hydrolysis of acidification reactor sewage treatment process diagram is as follows.
Legend. Optional process unit recommended process unit
Hydrolysis Acidification Reactor for Subsequent Treatment
Sludge treatment
Water grill grit chamber
Fig.1 Schematic diagram of sewage treatment process of hydrolytic acidification reactor
6.2.2 Hydrolysis Acidification reactor before the pretreatment process should include solid-liquid separation, grit, water quality and water regulation.
6.2.3 Hydrolytic acidification reactor should be based on the actual situation is coarse, fine grille or set fine mesh sieve.
6.2.4 for urban sewage treatment, hydrolysis and acidification reactor should be set before the grit chamber, grit chamber design should be consistent with GB
50014.
6.2.5 for industrial wastewater treatment, hydrolysis of acidification reactor water pH if not meet the requirements of 4.2.2, should be set to pH
Value adjustment device.
6.2.6 for industrial wastewater treatment, hydrolysis and acidification reactor should be set up before the adjustment pool.
6.3 Upflow Hydrolysis Acidification Reactor
6.3.1 Reactor structure
The up-flow hydrolytic acidification reactor is mainly composed of a tank body, a water distribution device, a water collecting device and a sludge discharge device. reactor
The structure is shown in Fig.
Figure 2 Schematic diagram of the structure of a riser hydrolytic acidification reactor
6.3.2 Pool capacity and pool body
6.3.2.1 Upflow Hydrolysis Acidification Reactor The effective volume should be calculated using the hydraulic load or hydraulic retention time method,
HRTQV  (1)
Where.
V - hydrolytic acidification reactor effective volume, m3;
Q - design flow, m3/h;
HRT - hydraulic retention time, h.
6.3.2.2 The hydraulic retention time of the up-flow hydrolytic acidification reactor shall be determined by test or reference to a similar project,
Off the information can refer to Table 2 values.
Table 2 Riser Hydrolysis Acidification Reactor for Hydraulic Dwell Time Reference Table
Sewage (waste) water type water quality requirements hydraulic retention time (h)
Urban sewage can be biodegradable or generally 2 to 4
Beer waste water, slaughtering waste water, food waste water,
Sugar and other waste water
Biodegradability is good, non-soluble
COD ratio> 60%
2 ~ 6
Papermaking wastewater, coking wastewater, coal chemical wastewater,
Petrochemical wastewater, tannery wastewater, oily wastewater,
Textile dyeing and finishing wastewater, including industrial park waste
Biodegradable
COD ratio of 30% to 60%
4 ~ 12
Other refractory organic wastewater
Biodegradability is poor, non-soluble
COD ratio <30%
10 or more
6.3.2.3 Upflow Hydrolysis Acidification Reactor type is preferably circular or rectangular, and the aspect ratio of rectangular reactor is preferably 1. 1 to 5. 1.
6.3.2.4 Upflow Hydrolysis Acidification reactor building materials may be made of reinforced concrete or stainless steel, carbon steel and anti-corrosion coating
Layer and other materials.
6.3.2.5 riser hydrolysis of acidification reactor effective water depth should be 4m ~ 8m, high 0.5m ~ 1.0m.
6.3.2.6 Upstream Hydrolysis Acidification Reactor The effluent flow rate is preferably 0.5m/h ~ 2.0m/h, which is appropriate for refractory wastewater
Reduce the flow rate or increase the return flow.
6.3.3 Water distribution devices
6.3.3.1 water distribution device should adopt multi-point water distribution device, each point of cloth water area should not be greater than 2m2, according to the need to choose a
Tube a hole type of cloth water, a tube of porous water, branch cloth and pulse water and so on.
6.3.3.2 water distribution device inlet point from the reactor bottom should maintain a distance of 150mm ~ 250mm.
6.3.3.3 The flow velocity of a pipe perforated pipe should be greater than 2m/s, the flow rate of water distribution pipe should be greater than 1m/s,
To set up the backwash tube.
6.3.3.4 a pipe with a hole cloth water is appropriate to use water distributor cloth water; from the water distributor to the outlet should adopt straight pipe; pipe vertical section
Flow rate should be controlled at 0.2m/s ~ 0.4m/s; pipe vertical section of the upper diameter should be greater than the lower diameter.
6.3.3.5 branches of water branch pipe outlet hole down from the bottom should be.200mm; outlet pipe diameter should be between 15mm ~ 25mm;
The water hole should be set at 45 inclined to the next cloth guide plate, the water hole should be on the bottom of the pool.
6.3.3.6 pulse water distributor size should be based on the design flow and pulse water cycle to determine the pool depth should be above 6.5m to prevent
There is too much sludge in the process of pulsing.
6.3.4 Water collection device
6.3.4.1 water should be used weir effluent, outlet weir mouth load should not be greater than 2.9L/(s · m).
6.3.4.2 water should be added to the sink in the cofferdam; weir on the head is greater than 25mm, the water at the triangle weir teeth 1/2. Water
The collection system should be located at the top of the hydrolytic acidification reactor.
6.3.4.3 When using a rectangular reactor, it is advisable to use the multi-tank effluent of parallel runoff weir.
6.3.4.4 When using a circular reactor, it is advisable to use radial multi-groove or polygonal tank outlet.
6.3.5 sludge discharge device
6.3.5.1 The amount of sludge produced by the hydrolysis and acidification reactor can be calculated as follows.
1000 /) 1 (X affSSQ Δ (2)
Where.
⊿X - sludge production, kg/d;
Q - design flow, m3/d;
SS - solid suspension concentration, kg/m3;
F - the removal rate of suspended solids, see Table 1;
Fa - sludge hydrolysis rate, should be tested or refer to similar projects to determine, urban sewage generally take 30%.
6.3.5.2 When the gravity sludge is used in the reactor, the sludge discharge point should be located in the lower part of the reactor, and the sludge layer and the water surface should be high
Degree should be maintained at 1.0m ~ 1.5m. At the same time should be reserved at the bottom of the mouth.
6.3.5.3 Rectangular pond should be slumped along the longitudinal direction of the pond.
6.3.5.4 For a pipe-type perforated pipe, consider the inlet pipe and the sludge or vent pipe.
6.3.5.5 Dump pipe pipe diameter should be greater than 150mm.
6.4 Composite Hydrolytic Acidification Reactor
6.4.1 Composite hydrolysis of acidification reactor pool capacity, pool body, cloth water and water collection device, mud device design can refer to
6.3 Execution.
6.4.2 composite hydrolysis of acidification reactor filled with the filler should have no toxic to microorganisms, easy to hang film, light, high strength,
Anti-aging, large surface area and high porosity characteristics.
6.4.3 packing can be used to fill the hanging and fixed and so on.
6.4.4 Different types of fillers can be used in combination.
6.5 Fully mixed hydrolytic acidification reactor
6.5.1 The volume of the fully mixed hydrolytic acidification reactor can be determined with reference to 6.3.2.1.
6.5.2 Hydraulic retention time should be determined by experiment or with reference to similar works. In the absence of relevant information, the hydraulic retention time should
Press the following formula.
HRT  (3)
Where.
X - hydrolytic acidification reactor in the average sludge concentration, generally take 4g/L ~ 8g/L;
C - constant, hgL-1, the value can refer to Table 3.
Table 3 Complete mixed hydrolysis of acidification reactor constant C value reference table
Pollutant (waste) water type water quality requirements constant C (hgL-1) value
Beer waste water, slaughter of waste water, food
Waste water, sugar and other waste water
Biodegradability is better, non-soluble COD ratio
Example> 60%
30 ~ 80
Papermaking wastewater, coking wastewater, coalification
Waste water, petrochemical waste, tannery waste
Water, oily wastewater, textile dyeing and finishing waste
Water, etc., including industrial park wastewater
Biodegradable general, non-soluble COD ratio
Example 30% to 60%
60 ~ 150
Other refractory organic wastewater
Biodegradable COD ratio is poor
Example <30%
120 or more
6.5.3 fully mixed hydrolysis of acidification reactor should be set up mechanical mixer, stirring power of not less than 6W/m3, should not use exposure
Gas mixing.
6.5.4 fully mixed hydrolysis of acidification reactor should be set in the reactor after the sedimentation tank reflux sludge, sedimentation tank design by HJ
2014, GB 50014.
6.5.5 sedimentation tank sludge reflux ratio should not be less than 100%, sludge reflux equipment should be to adjust the flow of measures.
6.5.6 The concentration of sludge in the fully mixed hydrolytic acidification reactor should not be lower than 4 g/L.
6.6 Subsequent treatment and sludge treatment
6.6.1 Hydrolytic acidification reactor Subsequent treatment is generally aerobic treatment process, such as the traditional activated sludge method, oxidation ditch, SBR,
Aerobic excess sludge can be discharged into the hydrolysis and acidification reactor for digestion and reduction.
6.6.2 Subsequent treatment should consider the hydrolysis of acidification reactor on the SS, organic matter removal and BOD5/CODCr ratio changes.
6.6.3 Hydrolytic Acidification Reactor Sludge should be mixed with excess sludge or separately concentrated and dehydrated.
6.6.4 sludge disposal should take into account the final disposal requirements of the sludge.
6.7 Waste (odor) gas collection and treatment
6.7.1 Hydrolytic acidification reactor should be taken to set the top cover and other closed measures to reduce waste (odor) gas on the surrounding environment pollution.
6.7.2 Hydrolysis Acidification Reactor produces waste (odor) gas that can be collected by negative pressure piping. Collected waste (odor) gas can be collected
With chemical or biological deodorization and other treatment methods, to meet the environmental impact assessment requirements of the document after the discharge.
7 Major process equipment and materials
7.1 Pumps
7.1.1 The type and number of sewage pumps should be selected according to the flow, nature and head of the discharged sewage.
7.1.2 Pumps of the same type (up to no more than two models) and caliber should be selected for maintenance, but must be met
Low flow demand.
7.1.3 Submersible sewage pumps shall comply with the requirements of HJ/T 336.
7.1.4 The standby pump shall be set according to GB 50014.
7.2 grille
7.2.1 Rotary fine grids shall comply with the requirements of HJ/T 250.
7.2.2 grille decontamination machine shall comply with the provisions of HJ/T 262.
7.3 Dosing equipment
Dosing equipment should comply with HJ/T 369 regulations.
7.4 Outlet and triangular weir
7.4.1 outlet tank material should adopt carbon steel, stainless steel or glass steel, triangular weir material should use 304 stainless steel. Carbon steel, no
Stainless steel and other steel plate thickness should be 3mm ~ 6mm.
7.4.2 outlet tank outlet, the tank top elevation error should be controlled within ± 2mm.
7.5 water distributor
A tube of a hole water distributor from the cloth sink, cloth pipe and cloth head composition, cloth sink and cloth head material should use 304
Stainless steel, cloth pipe should adopt polyethylene plastic (PE) pipe.
7.6 Fillers
Suspended packing shall comply with the requirements of HJ/T 245.
7.7 sludge treatment equipment
7.7.1 The sludge filter and the frame filter press for sludge dewatering shall comply with the provisions of HJ/T 283.
7.7.2 Belt presses for sludge dewatering shall comply with the requirements of HJ/T 242.
7.7.3 Sludge Concentration The belt dehydration machine shall comply with the provisions of HJ/T 335.
8 detection and process control
8.1 Detection
8.1.1 Hydrolytic acidification reactor pretreatment process unit should be equipped with level gauge, liquid level meter, level switch and flow meter. Large
Sewage treatment plant (station) should be in the hydrolysis of acidification reactor outlet additional CODCr detector.
8.1.2 Hydrolysis Acidification reactor should be equipped with pH automatic detection device.
8.1.3 Hydrolysis and acidification reactor can be equipped with oxidation reduction potentiometer.
8.1.4 hydrolysis of acidification reactor should be set up sludge interface instrument.
8.1.5 Hydrolysis and acidification reactor sludge discharge should be designed.
8.2 Process control
8.2.1 should be combined with the scale of the project, operation and management requirements, investment in the project, the equipment used, the advanced level of the instrument
And maintenance and management level, according to local conditions to determine the monitoring indicators and the degree of automation.
8.2.2 Hydrolytic Acidification Reactor It is appropriate to incorporate other sewage treatment facility control systems at the sewage treatment plant (station).
8.2.3 Electric valves, access to water and mud pumps and other key equipment should be set up near the independent control box, with a "manual/self
Move "the operation to control the switching function.
8.2.4 site testing instruments should have anti-corrosion, anti-leakage, anti-scaling and self-cleaning and other functions.
Major auxiliary works
9.1 The electrical engineering design shall comply with the provisions of GB 50052.
9.2 Anti-corrosion engineering design shall comply with the provisions of GB 50046.
9.3 Explosion-proof engineering design should meet the requirements of GB 50222 and GB 3836.
9.4 seismic design should be consistent with the provisions of GB 50011.
9.5 Structural design of the structure shall comply with the provisions of GB 50069.
9.6 The building design shall comply with the provisions of GB 50037.
9.7 fire and fire engineering design should be consistent with the provisions of GB 50016.
9.8 lightning protection design should be consistent with the provisions of GB50057.
9.9 Water supply engineering design shall comply with the provisions of GB 50015.
9.10 Drainage engineering design shall comply with the provisions of GB 50014.
9.11 heating ventilation engineering design should be consistent with the provisions of GB 50019.
Labor safety and occupational health
10.1 Hydrolytic Acidification Reactor Wastewater Treatment Engineering should pay attention to occupational health and labor safety during the design, construction and operation of the pipeline.
The implementation of GB Z1, GB Z2 and GB 12801.
10.2 Hydrolytic acidification reactor should be in accordance with the relevant provisions of the provision of protective railings, anti-slides and other safety measures.
10.3 Electrical equipment of the metal shell should be taken to ground or zero protection, steel structure, exhaust pipe, exhaust pipe and iron bar and other gold
The object should be connected with equipotential bonding.
10.4 hydrolysis of acidification reactor and sewage sludge piping and other maintenance, should open the manhole with the top cover, forced ventilation, and toxic
Hazardous gases are tested for safety requirements before they can be entered. Personnel involved in the operation should wear protective equipment, hydrolytic acidification
There must be someone outside the security guard.
Construction and Acceptance
11.1 General provisions
11.1.1 Construction should be carried out before the construction organization design or preparation of construction programs, a clear construction quality responsible person and construction safety
Responsible person, after approval before implementation.
11.1.2 Construction should meet the design documents, equipment, technical documentation requirements, engineering changes should be made to the design unit design changes
More documents and then implemented.
11.1.3 During the construction process, the quality of equipment, materials, concealed works and sub-projects should be done.
11.1.4 The construction and acceptance of pipeline engineering shall comply with the provisions of GB 50268; construction and acceptance of concrete structure works
GB 50204 requirements; construction and acceptance of structures should be consistent with the provisions of GB 50141.
11.1.5 Equipment, materials, semi-finished products and components used in construction shall comply with current standards and design requirements and obtain the supplier's
Certificate of Conformity. Equipment installation should comply with the provisions of GB 50231.
11.1.6 After completion and acceptance of the project, the construction unit shall file the relevant design, construction and acceptance documents.
11.2 Construction
11.2.1 civil construction
11.2.1.1 The construction of concrete anticorrosive and seepage shall comply with the provisions of GB 50212 and GB 50108.
11.2.1.2 Steel production and installation shall comply with the provisions of GB 50205.
11.2.1.3 Treatment of structures shall be carried out in accordance with local temperature and environmental conditions.
11.2.2 Equipment installation
11.2.2.1 Pump installation shall comply with the relevant provisions of GB 50275.
11.2.2.2 The equipment foundation shall be poured in accordance with the design requirements and drawings.
11.2.2.3 The degree and flatness of embedded parts shall comply with the provisions of GB 50231.
11.2.2.4 The anchor bolts shall be embedded in accordance with the requirements of the equipment manufacturer's instructions. The position shall be accurate and the installation shall be stable.
11.3 Project acceptance
11.3.1 The acceptance of the project shall be in accordance with the provisions of the Acceptance and Acceptance of the Construction Project (Project), the relevant acceptance rules and the provisions of this standard.
Row.
11.3.2 water distributor, the weir should be designed according to the performance requirements of the test, to ensure that cloth water, water evenly.
11.3.3 Pump room and so on should be designed to open the maximum number of units for 48h operation test.
11.3.4 Drain pipe should be closed water test, the upstream water pipe to maintain the pipe above the top 2m, the appearance of inspection should be 24 hours without leakage
Like.
11.3.5 Acceptance of the hydrolysis of acidification reactor should be full of water test, air tightness test, pipe strength and tightness test.
11.4 Environmental protection acceptance
11.4.1 Environmental protection Acceptance shall be in accordance with the provisions of the Measures for the Administration of Environmental Protection Acceptance of Construction Projects Completed and the Environmental Impact of Engineering
Evaluation of the approval of the report.
11.4.2 environmental protection inspection should be combined with the test run before the performance test, performance test report can be completed as environmental protection acceptance
Of the technical support documents. Performance tests include.
A) power consumption statistics, statistics of major equipment monomer operation and facilities operating system power consumption;
B) full load operation test, the treatment system should be full load water, study the structure of the structure and equipment;
C) water quality testing, in accordance with the provisions of frequency, indicators and test methods for water quality testing, analysis of pollutant removal effect.
12 operation and maintenance
12.1 General provisions
12.1.1 Hydrolysis Acidification Reactor The operation, maintenance and safety management of sewage treatment works should be carried out with reference to CJJ60.
12.1.2 Hydrolysis Acidification Reactor The operation and management of sewage treatment works should be equipped with professional personnel and equipment, and should establish equipment platform
Accounts, operating records, regular visits, transfer classes, security checks and other management systems, as well as the post of the system diagram, operation
And maintenance procedures and other technical documents.
12.1.3 The process diagram, operation and maintenance procedures of each post should be shown in a clear position, and the operator shall follow the procedure.
And regularly check the operation of structures, equipment, appliances and instruments.
12.1.4 Regular maintenance and maintenance of all kinds of equipment, electrical, automatic control instruments and construction (construction) buildings to ensure stable and reliable facilities
run.
12.1.5 regular inspection of water quality, and the detection equipment, instrument calibration.
12.1.6 operation should be strictly regular and regular security checks, the timely elimination of hidden dangers, to prevent accidents.
12.2 Water quality inspection
12.2.1 Hydrolytic Acidification Reactor Wastewater treatment works should be equipped with inspection personnel and equipment.
12.2.2 Water quality inspection should establish and improve the quality assurance system of water quality analysis.
12.2.3 inspection personnel should be trained after the appointment of posts, and should be regularly assessed and sampling.
12.2.4 The test method shall comply with the requirements of CJ/T 51.
12.2.5 Sample collection shall comply with the requirements of HJ/T 91.
12.2.6 Samples can not be tested immediately and should be stored in accordance with HJ 493.
12.2.7 The chemical oxygen demand (CODCr), suspended solids (SS), and biochemical oxygen demand
(BOD5), sludge concentration, pH, volatile fatty acids and other traits should be detected once a week; regular observation of sludge activity
To monitor the concentration of volatile suspended solids (VSS) in the sludge.
12.3 Reactor start
12.3.1 hydrolysis of acidification reactor can be used to start the natural culture or secondary sedimentation tank dehydration activated sludge inoculation, should use the same type of treatment
Industrial wastewater treatment project inoculation of sludge, inoculation of sludge should be the entire reactor sludge concentration of 3g/L ~ 5g/L.
12.3.2 Hydrolysis Acidification Reactor should first control the influent flow to ensure that the sludge is not lost until the design of hydraulic
Charge.
12.4 Run control
12.4.1 Hydrolysis Acidification Reactor The influent should be carried out according to the specific reactor design requirements, and the inlet hydraulic load and organic load
High or too low, etc.
12.4.2 In the urban sewage treatment, the sludge layer of the up-flow hydrolytic acidification reactor should be maintained at 1.0m ~ 1.5m below the outlet weir.
Sludge interface to control the sludge, complete mixed hydrolysis of acidification reactor follow-up sedimentation tank should be continuous sludge.
12.4.3 Hydrolytic Acidification Reactors in Industrial Wastewater Treatment should be discharged in time to avoid anaerobic production of methane.
12.4.4 hydrolytic acidification reactor oxidation and reduction potential value should not be higher than 0mV, to avoid the impact of high dissolved oxygen.
12.5 outage control
12.5.1 Hydrolysis Acidification reactor When the reactor is shut down for a long time, the reactor shall be vented and the corresponding frost prevention measures shall be taken.
12.5.2 Hydrolysis Acidification Reactor should be executed at 11.3 when restarted.
12.6 Maintenance
12.6.1 Hydrolysis Acidification Reactor Sewage treatment facilities, equipment maintenance should be included in the whole plant maintenance plan.
12.6.2 The enterprise shall establish detailed equipment maintenance regulations according to the equipment information provided by the design unit and the equipment supplier.
12.6.3 Maintenance personnel shall regularly inspect, replace or repair the necessary parts in accordance with the maintenance regulations and maintain the maintenance
record.
12.6.4 The level gauge, sludge interface and other instruments in the hydrolysis and acidification reactor should be calibrated and maintained on a regular basis.
12.6.5 Hydrolysis Acidification Reactor body, various pipes and valves shall be inspected and repaired once a year.
12.6.6 Hydrolysis Acidification reactor water distribution device should always descaling, clearing, can be used to clear or compressed air to clear the air.
Related standard:   HJ 2051-2016  HJ 2048-2015
   
 
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