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HJ 2004-2010: Technical specifications for slaughterhouse and meat processing wastewater treatment projects
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Basic data

Standard ID HJ 2004-2010 (HJ2004-2010)
Description (Translated English) Technical specifications for slaughterhouse and meat processing wastewater treatment projects
Sector / Industry Environmental Protection Industry Standard
Classification of Chinese Standard Z63
Classification of International Standard 13.060.30
Word Count Estimation 19,183
Date of Issue 2010-12-17
Date of Implementation 2011-03-01
Quoted Standard GB 8978; GB 12694; GB 13457; GB 18078; GB 50014; GB 50015; GB 18596; GB 4284; GB 5084; GB 14554; GB 50009; GB 50016; GB 50052; GB 50054; GB 50069; GB 50187; GB 50194; GB 50303; GB 50317; GBJ 22; GB 3096; GB 12348; GBJ 87; GB/T 18883; GB/T 18920; GB/T 4754; HJ/T 15; HJ/T 96; HJ/T 101; HJ/T 103; HJ/T 212; HJ/T 242; HJ/T 245; HJ/T 246; HJ/T 250; HJ/T 251; HJ/T 252; HJ/T 262; HJ/T 263; HJ/T 281; HJ/T 283; HJ/T 335; HJ/T 336; HJ/T 337; HJ/T 353; HJ/T 354; HJ/T 355; HJ/T 369; CJ 3082; CECS 97
Regulation (derived from) Department of Environmental Protection Notice No. 94 of 2010
Issuing agency(ies) Ministry of Ecology and Environment
Summary This standard specifies the slaughter and meat processing wastewater treatment engineering design, construction, commissioning, operation and management of the technical requirements. This specification applies to supporting new construction, renovation, expansion slaughterhouse and meat processing plant wastewater treatment project, such as environmental impact assessment, feasibility studies, engineering design, construction management, final acceptance, acceptance and operation of environmental management the technical basis for such work.

HJ 2004-2010: Technical specifications for slaughterhouse and meat processing wastewater treatment projects


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Technical specifications for slaughterhouse and meat processing wastewater treatment projects National Environmental Protection Standard of the People's Republic Technical specification for slaughtering and meat processing wastewater treatment engineering Technical specifications for slaughterhouse and meat processing wastewater Treatment projects Released.2010-12-17 2011-03-01 Implementation Ministry of Environmental Protection released Ministry of Environmental Protection announcement No. 94 of.2010 In order to implement the "Environmental Protection Law of the People's Republic of China" and standardize the construction and operation of pollution control projects, the "Air Pollution Control Workers" are now approved. The 9 standards such as the “Technical Guidelines” are national environmental protection standards and are released. The standard name and number are as follows. I. Technical Guidelines for Air Pollution Control Engineering (HJ .2000-2010) 2. Technical Specifications for Flue Gas Desulfurization Engineering in Thermal Power Plants (HJ .2001-2010) Third, electroplating wastewater treatment engineering technical specifications (HJ .2002-2010) 4. Technical specifications for the treatment of tannery and fur processing wastewater (HJ .2003-2010) Technical Specifications for Constructed Wetland Sewage Treatment Engineering (HJ .2005-2010) 7. Technical specifications for sewage coagulation and flocculation treatment (HJ .2006-2010) Eight, technical specifications for sewage air flotation treatment (HJ .2007-2010) 9. Technical Specifications for Sewage Filtration Treatment Engineering (HJ .2008-2010) The above standards have been implemented since March 1,.2011 and published by the China Environmental Science Press. The standard content can be found on the website of the Ministry of Environmental Protection. Special announcement. December 17,.2010

Content

Foreword..iv 1 Scope..1 2 Normative references..1 3 Terms and definitions. 2 4 Contaminants and pollution loads.3 5 General requirements..4 6 Process Design..5 7 Main process equipment and materials.10 8 Detection and Process Control 11 9 Major auxiliary projects.11 10 Labor Safety and Occupational Health..12 11 Construction and acceptance 12 12 Operation and maintenance 13 Iv

Foreword

To implement the Environmental Protection Law of the People's Republic of China, the Law of the People's Republic of China on Water Pollution Prevention and Control, and the Environmental Protection Management of Construction Projects Regulations and other relevant laws and regulations, regulate the construction and operation management of slaughter and meat processing wastewater treatment projects, prevent and control environmental pollution, and protect This standard is formulated to protect the environment and human health. This standard specifies the relevant technical requirements for the design, construction, acceptance and operation management of slaughter and meat processing wastewater treatment engineering. This standard is the first release. This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection. This standard was drafted. South China Institute of Environmental Sciences, Ministry of Environmental Protection. This standard was approved by the Ministry of Environmental Protection on December 17,.2010. This standard has been implemented since March 1,.2011. This standard is explained by the Ministry of Environmental Protection. Technical specification for slaughtering and meat processing wastewater treatment engineering

1 Scope of application

This specification specifies the technical requirements for the design, construction, acceptance and operation management of slaughter and meat processing wastewater treatment engineering. This code is applicable to wastewater treatment projects for new construction, reconstruction and expansion of slaughterhouses and meat processing plants. Technical basis for evaluation, feasibility study, engineering design, construction management, completion acceptance, environmental protection acceptance and operation management.

2 Normative references

The contents of this specification refer to the terms in the following documents. For undated references, the valid version applies to this standard. GB 8978 Integrated Wastewater Discharge Standard GB 12694 Meat Processing Factory Hygienic Specifications GB 13457 Water pollutant discharge standard for meat processing industry GB 18078 Meat joint processing factory health protection distance standard GB 50014 Outdoor Drainage Design Code GB 50015 Building Water Supply and Drainage Design Code GB 18596 Pollutant discharge standards for livestock and poultry breeding GB 4284 Contaminant control standard for agricultural sludge GB 5084 Farmland Irrigation Water Quality Standard GB 14554 Odor Pollutant Discharge Standard GB 50009 Building Structure Load Specification GB 50016 Building Design Fire Code GB 50052 design specification for power distribution system GB 50054 Low Voltage Distribution Design Specification GB 50069 Water supply and drainage engineering structure design specification GB 50187 General Plan for Design of Industrial Enterprises GB 50194 Construction site safety requirements for construction and supply of electricity GB 50303 Building electrical engineering construction quality acceptance specification GB 50317 Pig slaughtering and segmentation workshop design specification GB J 22 Factory Mine Road Design Code GB 3096 Acoustic Environmental Quality Standard GB 12348 Environmental noise emission standards for industrial enterprises GB J 87 Industrial Enterprise Noise Control Design Specification GB/T 18883 indoor air quality standard GB/T 18920 Urban Wastewater Recycling Urban Miscellaneous Water Quality GB/T 4754 National Economic Industry Classification HJ/T 15 Environmental Protection Product Technical Requirements Ultrasonic Open Channel Sewage Flowmeter HJ/T 96 pH water quality automatic analyzer technical requirements HJ/T 101 Ammonia Nitrogen Water Quality Analyzer Technical Requirements HJ/T 103 Total Phosphorus Water Quality Automatic Analyzer Technical Requirements HJ/T 212 pollution source online automatic monitoring (monitoring) system data transmission standard HJ/T 242 environmental protection product technical requirements belt press filter HJ/T 245 Environmental Protection Products Technical Requirements Hanging Packing HJ/T 246 Environmental Protection Products Technical Requirements Suspended Packing HJ/T 250 Environmental Protection Products Technical Requirements Rotary Fine Grille HJ/T 251 environmental protection product technical requirements Roots blower HJ/T 252 environmental protection product technical requirements, microporous aerator HJ/T 262 environmental protection product technical requirements grille decontamination machine HJ/T 263 Environmental Protection Product Technical Requirements Jet Aerator HJ/T 281 environmental protection product technical requirements diffuser aerator HJ T 283 environmental protection product technical requirements chamber filter press and plate and frame filter press HJ/T 335 environmental protection product technical requirements sludge concentration belt dewatering machine HJ/T 336 Environmental Protection Product Technical Requirements Submersible Sewage Pump HJ/T 337 Environmental Protection Products Technical Requirements Biological Contact Oxidation Complete Set HJ/T 353 Water Pollution Source Online Monitoring System Installation Technical Specification (Trial) HJ/T 354 water pollution source online monitoring system acceptance technical specification Technical specification for operation and assessment of HJ/T 355 water pollution source online monitoring system HJ/T 369 Environmental Protection Product Technical Requirements Dosing Device for Water Treatment CJ 3082 Sewage discharged into urban sewer water quality standards Design code for CECS 97 blast aeration system “Measures for Completion and Acceptance of Construction Projects (Engineering)” (Project Construction [1990] No. 1215) Measures for the Administration of Environmental Protection Completion Acceptance of Construction Projects (Order No. 13 of the State Environmental Protection Administration) Measures for the Automatic Monitoring and Control of Pollution Sources (Order No. 28 of the State Environmental Protection Administration)

3 Terms and definitions

The following terms and definitions apply to this standard. 3.1 Slaughterhouse slaughterhouse Refers to the place where the livestock are slaughtered and the primary processing is carried out. 3.2 Meat processing factory Refers to the place used for the production and processing of animal meat food. 3.3 Slaughtering process Refers to the rim washing during slaughter, leaching before slaughter, scalding or peeling after slaughtering, cavity opening, halving, disintegration, visceral washing and workshop washing And so on. 3.4 Slaughterhouse wastewater Refers to the wastewater generated during the slaughter process, mainly containing blood, oil, minced meat, animal hair, undigested food and feces, urine and so on. 3.5 Meat processing Refers to the process of washing meat, processing, freezing, etc. during meat processing. 3.6 Meat processing wastewater Refers to the wastewater generated during the processing of meat, mainly containing minced meat, fat, blood, protein, oil and so on. 3.7 Waste water reuse wastewater reuse It refers to the wastewater resource utilization after deep treatment. 3.8 Odor pollutants Refers to all gaseous substances that stimulate the olfactory organs to cause unpleasantness and damage to the living environment. (GB 14554-1993)

4 Contaminants and pollution loads

4.1 Contaminants The main pollutants contained in the slaughter and meat processing wastewater include CODCr, BOD5, SS, ammonia nitrogen and animal and vegetable oils. 4.2 Wastewater volume 4.2.1 Amount of slaughter wastewater The amount of slaughter wastewater can be calculated according to the following formula. Q=q×S (1) Where. Q--the amount of slaughter wastewater produced daily, m3/d; q--The amount of animal waste water produced by slaughter, m3/head or m3/100; S--The total number of animals slaughtered daily, head/d or 100/d. The amount of animal waste water produced by the unit can be valued according to the data in Table 1 and Table 2. Table 1 Production of animal waste water by unit slaughter (animals) Unit. m3/head Slaughter animal type cattle, pigs and sheep The amount of animal waste water produced by the slaughter unit is 1.0-1.5 0.5-0.7 0.2-0.5 Table 2 Production of animal waste water by unit slaughter (avian) Unit. m3/100 Slaughter animal type chicken, duck, goose The amount of animal waste water produced by the slaughter unit is 1.0～1.5 2.0～3.0 2.0～3.0 4.2.2 The amount of wastewater from meat processing is related to the scale, type and process of processing. The amount of wastewater from a separate meat processing plant should be based on actual conditions. The body should be determined, generally should not exceed 5.8 m3/t (raw meat), companies with split meat, chemical processing and other processes can increase drainage per 1 t of raw meat The amount of wastewater is 2 m3; when the meat processing plant and the slaughtering site are built, the amount of wastewater can be calculated according to the scale of the slaughterhouse and meat processing plant of the same scale. 4.2.3 When estimating the total wastewater discharge according to the total water consumption of the whole plant, the amount of wastewater should be 80% to 90% of the total water consumption of the whole plant. 4.3 Wastewater quality The determination of wastewater quality should be based on actual monitoring data. When there is no monitoring data, the water quality of the slaughter wastewater can be referred to Table 3. The water quality of the meat processing wastewater can be referred to Table 4. Table 3 Water quality of slaughter wastewater design unit. mg/L (except pH value) Contaminant index CODCr BOD5 SS Ammonia nitrogen animal and vegetable oil pH Wastewater concentration range 1 500～2 000 750～1 000 750～1 000 50～150 50～200 6.5～7.5 Table 4 Water quality design of meat processing wastewater. Unit. mg/L (except pH) Contaminant index CODCr BOD5 SS Ammonia nitrogen animal and vegetable oil pH Wastewater concentration range 800～2 000 500～1 000 500～1 000 25～70 30～100 6.5～7.5

5 General requirements

5.1 General provisions 5.1.1 The construction of the slaughtering and meat processing wastewater treatment project should conform to the relevant local planning, and reasonably determine the short-term and long-term, treatment and utilization. Relationship. 5.1.2 The slaughtering and meat processing industry should actively adopt energy-saving emission reduction and clean production technologies, continuously improve production processes and reduce pollutant production. Production and emissions to prevent environmental pollution. 5.1.3 When the effluent is directly discharged into the surrounding waters, the standardized sewage outlets shall be set according to the relevant provisions of the state and localities. Emission water quality should meet the country Relevant requirements for household, industry, and local emission standards and project environmental impact assessment approval documents. 5.1.4 should be based on the type of slaughterhouse and meat processing plant, construction scale, local natural geographical environment conditions, drainage destination and discharge standards Other factors determine the wastewater treatment process route and treatment objectives, and strive to be economical, rational, reliable, and stable. 5.1.5 The main wastewater treatment facilities shall be designed in parallel of not less than two grids or two groups, and the main equipment shall be considered for standby. 5.1.6 The wastewater treatment structure shall be equipped with an inspection and emptying facility, and the discharged wastewater shall be discharged after being treated to the standard. 5.1.7 Slaughter and meat processing wastewater treatment processes should include disinfection and deodorization units. 5.1.8 It is recommended that the conditional place can be used for advanced treatment of slaughter and meat processing wastewater to realize the utilization of wastewater resources. 5.1.9 The wastewater treatment plant (station) shall install wastewater online in accordance with the “Measures for the Automatic Monitoring of Pollution Sources” and the relevant regulations of local environmental protection departments. Monitoring equipment. 5.2 Design scale 5.2.1 The design scale shall be determined after comprehensive consideration of the displacement under the conditions of production process, production volume and maximum production capacity. 5.2.2 The quantity and quality of wastewater should be based on the measured data. Refer to Table 1, Table 2, Table 3 and Table 4 for the lack of measured data. 5.3 Project composition 5.3.1 The wastewater treatment project mainly includes treatment structures, process equipment, supporting facilities and operation management facilities. 5.3.2 The treatment process mainly includes pretreatment, biochemical treatment, advanced treatment, malodorous pollution treatment and sludge treatment. 5.3.3 Process equipment includes mechanical grille, sewage pump, three-phase separator, aeration fan, aerator, sludge dewatering machine, etc. 5.3.4 Supporting facilities include power supply and distribution, water supply and drainage, fire protection, communication, HVAC, detection and control, and greening. 5.3.5 Operation management facilities include office buildings, analytical laboratories, warehouses, maintenance workshops, etc. 5.4 General layout 5.4.1 The general layout should meet the relevant provisions of GB 50187. 5.4.2 The terrain, geological conditions, surrounding environment, and buildings should be considered comprehensively according to the process flow and the functional requirements of each structure. And the factors such as the spatial relationship between the facilities and each other, based on the current relevant technical specifications of the country, determine the overall layout of the wastewater treatment project. Set. Reserve the site according to the long-term total processing scale and pay attention to the connection between the near and long term. 5.4.3 The wastewater treatment project should be arranged independently in the downwind direction of the main wind direction of the plant, and the layout of each treatment unit should be as compact as possible (small and medium scale) The wastewater treatment structure can be constructed in one piece, which is convenient for civil construction, equipment installation, simple connection of various pipelines and easy maintenance. management. 5.4.4 The vertical design of the process and processing unit should make full use of the site topography to meet the smooth drainage, reduce energy consumption and balance the earthwork. Other requirements. 5.4.5 Management and auxiliary buildings shall be provided, and the area shall be determined in accordance with the actual conditions such as the scale of the treatment project and the treatment process. 5.4.6 Storage materials, chemicals, sludge, waste residue, etc. should be set up as needed, and should not be stacked in the open air.

6 Process design

6.1 Process selection principle 6.1.1 Process selection should be based on the premise of continuous and stable discharge, and choose a mature and reliable wastewater treatment process. 6.1.2 The process flow and treatment should be determined according to the water quantity, water quality characteristics, emission standards, geographical characteristics and management level of the wastewater. Standard. 6.1.3 Under the premise of meeting the discharge standards, the low-operation cost and technologically advanced treatment process are preferred. Processing process should be done as much as possible To automatic control. 6.1.4 Slaughtering and meat processing wastewater treatment should be based on biochemical treatment, combined with physical and chemical treatment, and in accordance with the national phase According to the policy requirements, the advanced treatment and reuse of wastewater should be considered according to local conditions. 6.2 Slaughter and meat processing wastewater treatment process The typical process flow of the slaughter and meat processing wastewater treatment project is shown in Figure 1. sludge Wastewater grid grit chamber, grease trap, pool adjustment tank Anaerobic treatment of aerobic treatment Air float Advanced processing disinfection Sludge concentration tank Excess sludge Initial sink Municipal sewage treatment plant Standard discharge Anaerobic treatment of effluent Water reuse Discharge Sludge treatment Wastewater treatment Optional processing unit Recommended processing unit sludge Sludge sludge dewatering Solid waste treatment Resource utilization Or safe disposal Figure 1 Typical process flow for slaughtering and meat processing wastewater treatment project 6.3 Wastewater treatment main unit 6.3.1 Pretreatment The pretreatment part of the slaughter and meat processing wastewater project mainly includes. coarse (fine) grid, grit chamber, grease trap, collecting basin, regulation Pool and primary sinking pool, etc. 6.3.1.1 Grille a) The coarse grid and fine grid should be set before the adjustment tank, and designed according to the maximum amount of wastewater. b) When the amount of wastewater is large and there are many floating debris, a mechanical grill with automatic cleaning function should be used. c) Special attention should be paid to the difference in the selection of fine grid equipment for the treatment of poultry and livestock slaughtering wastewater, which contains more feathers and other floating Special fine grids, hydraulic screens or screens must be provided for the objects. 6.3.1.2 Grit chamber a) The grit chamber is located behind the grille and can be combined with the grease trap before the grease trap. b) When using a flat flow grit chamber, the maximum flow rate should be 0.3 m/s, the minimum flow rate should be 0.15 m/s, and the hydraulic retention time should be 30~ 60 s. c) When using a swirling grit chamber, the swirling velocity should be 0.6-0.9 m/s, and the surface load should be about.200 m3/(m2·h). The interval should be 20 to 30 s. 6.3.1.3 Grease trap a) Before the gutter pool is set up in the regulation tank, after the grit chamber, for the large and medium-sized wastewater treatment project, the grease trap should be equipped with eucalyptus oil. Slag scraping facility. b) The residence time of the advection grease trap is generally 1.5 to 2.0 h, and the residence time of the sloping oil isolation tank is generally not more than 0.5 h. c) The meat processing plant wastewater with low oil content may not be separately provided with the grease trap according to the actual situation. 6.3.1.4 Water collection basin a) When the buried depth of the workshop outlet pipe is large, in order to reduce the buried depth of the adjustment tank and facilitate construction, a collection basin should be provided. b) The effective volume of the sump should be not less than the water output of the maximum working water pump of the pool for 5 min. The wastewater lifting pump should be selected according to the maximum water volume. Type (3 to 4 times the average flow rate when the water volume change curve data), the number of starts per hour does not exceed 6 times. c) Other technical requirements for the collection basin shall be implemented in accordance with the relevant provisions of GB 50014. 6.3.1.5 Adjustment pool a) The effective volume of the regulating tank should be determined according to the production drainage law. If there is no relevant data, the effective volume should be based on the hydraulic retention time of 10~ 24 h design, with due consideration of accident emergency needs. b) Agitating device should be installed in the regulating tank. Generally, submerged (submersible) stirring or air stirring can be used. When using liquid mixing, specific The stirring power should be determined according to the size of the pool body, generally 5~10 W/m3; when air is used, the required air volume (standard) State) is 0.6 to 0.9 m3/(h·m3). c) In order to reduce the impact of odor, the adjustment tank should be covered, and ventilation, exhaust and deodorization facilities should be provided; the adjustment pool should be equipped with safety railings and inspection Repair the escalator. d) The adjustment tank shall be provided with an empty sump, and the bottom of the pool shall be designed to flow to the sump, and the slope design shall be not less than 2%. 6.3.1.6 Initial settling pool a) After the adjustment tank, the primary sedimentation tank should be set up, and the vertical flow sedimentation tank can be used. For projects larger than 3 000 t/d, radial flow sinking can be used. Pond. b) When using a vertical flow sedimentation tank, the width (diameter) depth ratio is generally not more than 3, and the pool diameter (or square side) should not be greater than 8 m. The center flow rate when the reflector is not set should not exceed 30 mm/s, and the center flow rate when the reflector is set can be 100 mm/s. c) The hydraulic retention time of the sedimentation tank should be greater than 1 h, but not more than 3 h; for other designs, refer to the relevant provisions of GB 50014. 6.3.1.7 Air float a) Air floatation can be used as a regulating tank to remove dispersed oil, emulsified oil, fluff and fine suspended particles which are small in residual amount in wastewater. An alternative technique for debris. For wastewater containing more oil and fluff meat processing, air flotation should be used to ensure Stable operation and processing effects of subsequent processing units such as anaerobic. b) The design of air flotation can be carried out in accordance with the relevant technical specifications for wastewater flotation treatment. 6.3.2 Biochemical treatment Biochemical treatment is the core of slaughtering and meat processing wastewater treatment projects, mainly to remove degradable organic pollutants and ammonia nitrogen in wastewater. Type of pollutant. The biochemical treatment mainly includes anaerobic treatment and aerobic treatment. 6.3.2.1 Anaerobic treatment The anaerobic process generally suitab...

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