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HJ 2003-2010Technical specifications for tannery industry wastewater treatment (English PDF)

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Issued by

Ministry of Ecology and Environment

Level / Type

National · Mandatory

Issue date

December 17, 2010

Implementation date

March 1, 2011

Scope

HJ 2003-2010 (Technical specifications for tannery industry wastewater treatment) is available as an English-translated PDF.

HJ 2003-2010 — This standard specifies the general requirements, process design, inspection control, construction acceptance, operation dimension of the leather and fur processing wastewater treatment project.

Technical requirements for protection. This standard is applicable to the leather and fur processing wastewater treatment project using raw hide as raw material and using chrome tanning process, which can be used as environmental impact assessment.

Technical basis for feasibility study, design, construction, installation, commissioning, acceptance, operation and supervision and management, using other raw materials and tanning processes the tanning and fur processing enterprises and the wastewater treatment projects in the centralized processing areas can be referred to.

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Document preview — HJ 2003-2010

National Standard of the People's Republic of China

ICS: 13.060.30
Classification: Z 63

Issued by: Ministry of Ecology and Environment

Foreword
1 Scope of application
2 Normative references
3 Terms and definitions
4 Waste water volume and water quality
4.1 Wastewater volume
4.2 Wastewater quality
5 General requirements
5.1 General provisions
5.2 Construction scale
5.3 Project composition
5.4 Site selection and overall layout

Foreword

To implement the "Environmental Protection Law of the People's Republic of China" and the "Water Pollution Control Law of the People's Republic of China", standardize leather and fur processing this standard is formulated for the construction and operation management of wastewater treatment projects, prevention of environmental pollution, protection of the environment and human health.

This standard specifies the technical requirements for the design, construction, acceptance and operation management of tannery and fur processing wastewater treatment engineering.

This standard is the first release.

Appendix A, Appendix B and Appendix C of this standard are informative annexes.

This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection.

This standard is mainly drafted by. Shandong Environmental Protection Research and Design Institute, Shandong Leather Research Institute, Shandong Leather Association.

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 specifications for the treatment of tannery and fur processing wastewater

1 Scope of application

This standard specifies the general requirements, process design, inspection control, construction acceptance, operation dimension of the leather and fur processing wastewater treatment project.

Technical requirements for protection.

This standard is applicable to the leather and fur processing wastewater treatment project using raw hide as raw material and using chrome tanning process, which can be used as environmental impact assessment.

2 Normative references

The contents of this standard refer to the terms in the following documents. For undated references, the valid version applies to this standard.

GB 4284 Contaminant control standard for agricultural sludge GB 5085.3 Identification criteria for hazardous wastes GB 7251 low-voltage switchgear and control equipment GB 12348 Environmental noise emission standards for industrial enterprises General rules for safety and health requirements of GB 12801 production process GB 14554 Odor Pollutant Discharge Standard GB 15562.1 Environmental protection graphic mark discharge port (source) GB 18484 Hazardous Waste Incineration Pollution Control Standard GB 18597 Hazardous Waste Storage Pollution Control Standard GB 18598 Hazardous Waste Safety Landfill Pollution Control Standard GB 18599 General industrial solid waste storage and disposal site pollution control standards GB 50014 Outdoor Drainage Design Code GB 50015 Building Water Supply and Drainage Design Code GB 50016 Building Design Fire Code GB 50019 Heating, Ventilation and Air Conditioning Design Code GB 50033 Architectural lighting design standard GB 50034 Architectural Lighting Design Standard GB 50037 Building Ground Design Specification GB 50046 industrial building anti-corrosion design specification GB 50052 design specification for power distribution system GB 50053 10 kV and below substation design specifications GB 50054 Low Voltage Distribution Design Specification GB 50055 general purpose electrical equipment power distribution design specification GB 50057 lightning protection design code for buildings GB 50069 Water supply and drainage engineering structure design specification GB 50093 automation instrument engineering construction and acceptance specification GB 50108 Underground Engineering Waterproof Technical Specifications GB 50116 Fire Automatic Alarm System Design Specification GB 50168 Electrical installation engineering cable line construction and acceptance specifications GB 50169 Electrical installation engineering grounding device construction and acceptance specifications GB 50187 General Plan for Design of Industrial Enterprises GB 50204 Concrete Structure Engineering Construction Quality Acceptance Specification GB 50208 Underground Waterproof Engineering Quality Acceptance Specification GB 50222 Building interior decoration design fire protection specification General specification for construction and acceptance of GB 50231 mechanical equipment installation engineering GB 50236 Field equipment, industrial pipeline welding engineering construction and acceptance specifications GB 50243 Ventilation and air conditioning engineering quality acceptance specification GB 50254 Electrical installation engineering Low-voltage electrical installation and acceptance specifications GB 50255 Electrical installation engineering construction and acceptance specifications for power converter equipment GB 50256 Electrical installation and construction crane electrical installation construction and acceptance specifications GB 50257 Electrical installation engineering explosion and fire hazard environment electrical installation construction and acceptance specifications GB 50268 Water supply and drainage pipeline engineering construction and acceptance specifications GB 50275 Compressor, fan, pump installation engineering construction and acceptance specifications GB 50334 Urban Wastewater Treatment Plant Engineering Quality Acceptance Specification GB 50336 Design code for water in buildings GB 50395 video security monitoring system engineering design specification GB/T 16483 chemical safety data sheet content and project sequence GB/T 18920 Urban Wastewater Recycling Urban Miscellaneous Water Quality GB/T 19837 city water supply and drainage ultraviolet disinfection equipment GB/T.19923 Urban sewage recycling industrial water quality GB/T 50335 Wastewater Recycling Engineering Design Specification GB J 115 Industrial TV System Engineering Design Specification GB J 125 water supply and drainage design basic terminology standard GB J 141 Code for construction and acceptance of water supply and drainage structures GBZ 1 industrial enterprise design hygiene standard GBZ 2.1 Occupational exposure limits for workplace hazards Part 1. Chemical hazards GBZ 2.2 Occupational exposure limits for workplace hazards Part 2. Physical hazards HJ/T 91 Surface Water and Wastewater Monitoring Technical Specifications HJ/T 92 Water Pollutant Total Monitoring Technical Specification HJ/T 96 Environmental Protection Product Technical Requirements pH Water Quality Automatic Analyzer Technical Requirements HJ/T 101 Environmental Protection Product Technical Requirements Ammonia Nitrogen Water Quality Analyzer Technical Requirements HJ/T 242 environmental protection product technical requirements belt press filter for sludge dewatering HJ/T 247 Technical requirements for environmental protection products Vertical shaft mechanical surface aerator 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 259 environmental protection product technical requirements rotary brush aeration device HJ/T 261 environmental protection product technical requirements pressure dissolved air flotation device HJ/T 262 environmental protection product technical requirements grille decontamination machine HJ/T 265 environmental protection product technical requirements scraper HJ/T 266 environmental protection product technical requirements suction machine HJ/T 272 Environmental Protection Products Technical Requirements Chemical Process Chlorine Dioxide Disinfectant Generator HJ/T 277 environmental protection product technical requirements rotary decanter HJ/T 278 environmental protection product technical requirements single-stage high-speed aeration centrifugal blower HJ/T 279 environmental protection product technical requirements push flow submersible mixer HJ/T 280 environmental protection product technical requirements rotary aerator HJ/T 282 environmental protection product technical requirements shallow pool air flotation device HJ/T 283 environmental protection product technical requirements chamber filter press and plate and frame filter press HJ/T 336 Environmental Protection Product Technical Requirements Submersible Sewage Pump HJ/T 354 water pollution source online monitoring system acceptance technical specification HJ/T 369 Environmental Protection Product Technical Requirements Dosing Device for Water Treatment HJ/T 377 Environmental Protection Products Technical Requirements Chemical Oxygen Demand (CODCr) Water Quality Online Automatic Monitor Design code for CECS 111 sewage activated sludge treatment in cold regions CECS 112 oxidation ditch design procedure CJJ 60 Urban Wastewater Treatment Plant Operation, Maintenance and Safety Technical Regulations LD 35 Tanning Safety and Hygiene Regulations NY/T 1220.2 Technical Specifications for Biogas Engineering - Part 2. Gas Supply Design NY/T 1222 Large-scale livestock and poultry farm biogas engineering design specification QB/T 1261 fur industry terminology QB/T 2262 Leather Industry Terminology Measures for Completion and Acceptance of Construction Projects (Engineering) (Project Construction [1990] No. 1215) Measures for the Administration of Environmental Protection Acceptance for Completion of Construction Projects (Order No. 13 of the State Environmental Protection Administration) "Technical Requirements for Standardization and Remediation of Sewage Discharge Ports" (Trial) (Environmental Supervision [1996] No. 470) Measures for the Automatic Monitoring of Pollution Sources (Order No. 28 of the State Environmental Protection Administration)

3 Terms and definitions

The terms in QB/T 2262, QB/T 1261, GB J 125 and the following terms and definitions apply to this standard.

Leather and fur central processing zone Refers to a group of enterprises mainly composed of tanning and fur processing industries. The enterprises are relatively concentrated in distribution, and the districts are fully functional and relatively independent.

area.

Sulfur-containing wastewater Refers to the ash ash waste liquid generated during the tanning process using the gray alkali method and the corresponding water washing process wastewater.

Degreasing wastewater Refers to the waste liquid formed by treating the rawhide oil with a surfactant in the degreasing process of the tanning and fur processing and the corresponding washing Process wastewater.

Chromium-containing wastewater Refers to the waste chromium liquid produced in the chrome tanning and chromium retanning process and the corresponding washing process wastewater.

Integrated wastewater Means that the tannery and fur processing enterprises or concentrated processing areas are directly or indirectly related to production and are discharged into the integrated wastewater treatment project.

The general term for various wastewaters (such as production process wastewater, domestic sewage in the plant area, etc.).

Tanning and fur processing sludge Refers to sludge produced during the treatment of tannery and fur processing wastewater.

Chrome sludge

Refers to the sludge produced during the pretreatment of chromium-containing wastewater.

Pretreatment

Refers to the reduction of the comprehensive wastewater treatment load, the recovery of valuable materials, and the high levels of pollutants produced during the processing of tannery and fur processing.

The process of preliminary purification of waste water with high value or serious pollution is also called classification treatment.

Primary treatment

Refers to the primary purification process with solid-liquid separation as the main body in the comprehensive wastewater treatment project.

3.10

Secondary treatment

Refers to the purification process with biochemical treatment as the main body after the first-stage treatment in the comprehensive wastewater treatment project.

3.11

Advanced treatment

Refers to the purification process of further removing the pollutants that cannot be completely removed by the secondary treatment in the integrated wastewater treatment project.

4 Waste water volume and water quality

4.1 Wastewater volume

4.1.1 The amount of wastewater from tanning and fur processing can be calculated as follows.

Y iQ Q Qj= (1)

Qi=sumqi(1-alpha)=betaQ (2) where. QY--combined wastewater volume (in raw hides), m3/t;

Qi--the amount of wastewater produced (in raw hides), m3/t;

Qj--Other wastewater volume (in raw hides), m3/t, including ground flushing water and domestic sewage, etc., should refer to GB 50015, GB 50336 such as standard determination;

Qi--the amount of wastewater in each production process (in raw hides), m3/t, can be determined by reference to Appendix A;

Q--production water consumption (in raw hides), m3/t, can be determined according to the production water quota;

alpha--Recycling rate of wastewater, %, that is, the ratio of recycled wastewater to wastewater production, should be based on actual wastewater reuse or water balance

Figure determination

beta--The calculation of the reduction factor of the displacement according to the amount of water supply should be determined according to factors such as the production process of the enterprise and the level of water supply and drainage facilities.

Take 80% to 90%.

4.1.2 The amount of typical tannery wastewater can be referred to Table 1. The amount of typical fur processing wastewater can be referred to Table 2.

Table 1 Total amount of raw skin of raw hides in typical tannery enterprises (1)

Leather type cowhide pigskin goatskin sheepskin Amount of wastewater (in raw hides)/(m3/t) 40 ~ 75 45 ~ 100 45 ~ 75 40 ~ 75 Note. (1) According to the quality of raw hide. 20 kg/sheet of yellow cowhide, 5 kg/sheet of pig skin (salt) and 3 kg/sheet of sheep skin (salt).

Table 2 Total amount of raw wastewater of raw hides in typical fur processing enterprises

Fur type sheep shearing (salt wet skin) Otter (dry board) fox (dry board) Scorpion (salt wet skin) Rabbit skin (salt wet skin) Amount of wastewater (in raw hides)/(m3/t) 70 ~ 140 50 ~ 90 110 ~ 160 80 ~ 100 80 ~ 110

4.1.3 The coefficient of variation of production wastewater volume refers to the ratio of the maximum daily maximum wastewater volume to the maximum daily average (production design scale) wastewater volume.

The value should be determined in conjunction with the actual production situation of the enterprise. When there is no relevant information, refer to Table 3.

Table 3 Variation coefficient of wastewater volume

Wastewater source leather processing area the coefficient of variation is 1.5 to 2.0 1.6 to 3.0 2.0 to 4.0.

4.2 Wastewater quality

4.2.1 Wastewater quality can be calculated as follows.

1 000ii

1 000i i jY

eta- = ×sum (4)

Where. Ci - the concentration of wastewater pollutants in each production process, mg/L;

CY--the concentration of integrated wastewater pollutants, mg/L;

Wi--the amount of wastewater pollutants produced in each production process (in raw hides), kg/t, can be determined by reference to Appendix B;

Wj--the amount of other wastewater pollutants produced (in raw hides), kg/t, should be determined with reference to GB 50014, GB 50336 and other standards;

etai--Removal rate of pretreatment of wastewater in each production process, %, refer to Appendix C.1.

4.2.2 The water quality of typical tannery wastewater can be referred to Table 4. The water quality of typical fur processing wastewater can be referred to Table 5.

Table 4 Typical water quality range of tannery wastewater (1)

Wastewater type pH CODCr/ (mg/L) BOD5/(mg/L) SS/(mg/L) S2-/(mg/L) Total chromium /(mg/L) Ammonia nitrogen /(mg/L) (mg/L) Total nitrogen/animal and vegetable oil /(mg/L) Sulphur-containing wastewater 12~14 5 000~40 000 2 500~10 000 3 000~20 000 800~5 000 - 50~100 80~150 150~800 Degreasing wastewater 11~13 10 000~30 000 3 000~8 000 3 000~5 000 - - - - 4 000~10 000 Chromium-containing wastewater 3.5~5 3 000~6 500 600~1.200 600~2 000 - 600~2 500 150~400.200~500 400~800 Comprehensive wastewater 8~10 3 000~4 000 1.200~1 800 2 000~4 000 40~100 30~80(2).200~600 250~800 250~2 000 Note. (1) The comprehensive wastewater quality in the table is the water quality without pretreatment.

(2) After the pretreatment of the chromium-containing wastewater, the total chromium concentration of the integrated wastewater is 0.1-1.5 mg/L.

Table 5 Typical fur processing wastewater water quality range (1)

Wastewater type pH CODCr/ (mg/L) BOD5/(mg/L) SS/(mg/L) Total chromium /(mg/L) Ammonia nitrogen /(mg/L) Total nitrogen /(mg/L) Animal and vegetable oil /(mg/L) Chromium-containing wastewater 3.5~5 2 000~4 000 400~1 000 400~1 500 300~700 40~100 80~250 300~600 Comprehensive wastewater 8~10 1 500~3 500 600~1.200 1 000~2 500 10~20(2) 60~120 150~250 300~1 500 Note. (1) The comprehensive wastewater quality in the table is the water quality without pretreatment.

(2) After the pretreatment of the chromium-containing wastewater, the total chromium concentration of the integrated wastewater is 0.1-1.0 mg/L.

5 General requirements

5.1 General provisions

5.1.1 The whole process of production, treatment and discharge of wastewater should be controlled, and clean production technology should be adopted to improve the utilization of resources and energy.

Reduce the amount of pollutants produced and emissions, and prevent pollution of the environment.

5.1.2 Tanning and fur processing wastewater should be cleaned and diverted, rain and sewage diversion.

5.1.3 Based on the production situation and development plan of the enterprise, the national industrial policy and industrial pollution prevention and control technology policies shall be implemented and coordinated.

Relationship with decentralization, existing and new (expanded, modified) construction.

5.1.4 Wastewater discharged after treatment shall comply with the requirements of the environmental impact assessment approval document and relevant emission standards.

5.1.5 Precautions for secondary pollution should be built to ensure that pollutants such as sludge, odor, noise, etc. meet GB 14554 and GB 12348 and other relevant environmental standards.

5.1.6 The wastewater discharge port shall be constructed in accordance with the Technical Requirements for Standardization and Remediation of Sewage Discharge Ports (Trial), and the requirements shall be in accordance with GB/T 15562.1.

The wastewater discharge port mark shall be installed and the continuous monitoring equipment for pollutant discharge shall be installed in accordance with the "Measures for Automatic Monitoring of Pollution Sources".

5.2 Construction scale

5.2.1 The construction scale shall be comprehensively determined according to the existing water quantity, water quality and expected changes within the scope of wastewater treatment engineering services; existing enterprises the industry should be based on measured data, and new (expanded, modified) enterprises should be determined by analogy or material accounting.

5.2.2 The scale of the pre-treatment project should be matched with the construction scale of the relevant production unit, and calculated according to the maximum daily flow.

5.2.3 The construction scale of the integrated wastewater treatment project should meet the following requirements.

a) The pre-treatment wastewater treatment structure of the grid, pre-sinking tank, etc. is calculated according to the maximum daily maximum flow rate;

b) the adjustment tank and the subsequent wastewater treatment structure are calculated according to the maximum daily average flow rate;

c) The water reuse treatment system is determined after the water balance and technical and economic analysis according to the water quality, quantity and reuse of the available source water;

d) The sludge treatment and disposal system is calculated based on the maximum daily average sludge volume.

5.3 Project composition

5.3.1 Tanning and fur processing wastewater treatment projects consist of main works, ancillary works and production management facilities.

5.3.2 The main works mainly include pretreatment of sulfur-containing wastewater, pretreatment of degreasing wastewater, pretreatment of chromium-containing wastewater and comprehensive wastewater treatment.

The integrated wastewater treatment project includes wastewater treatment systems, water reuse systems, sludge treatment and disposal systems, and odor treatment systems.

a) The wastewater treatment system includes primary treatment, secondary treatment and advanced treatment units;

b) the water reuse system includes the return water storage, distribution and monitoring unit;

c) sludge treatment and disposal systems including sludge homogenization, concentration, dehydration and final disposal units;

d) The odor treatment system includes an odor collection and processing unit.

5.3.3 Supporting projects include electrical automation, water supply and drainage and fire protection, heating and ventilation and air conditioning, building structure, testing and process control.

5.3.4 Production management facilities include office buildings, duty rooms, etc.

5.4 Site selection and overall layout

5.4.1 The site selection and overall layout should be included in the overall planning of the tanning and fur processing enterprises or centralized processing zones, and meet the environmental impact assessment, the requirements for approval documents.

5.4.2 The overall layout shall be based on the functional and process requirements of the buildings and structures in the area, combined with the site's topography, climate and geological conditions.

Determined by technical and economic comparison, and meet the following requirements.

a) The general layout is reasonable and...

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Normative references

GB 7251 · GB 50034 · GB 50046 · GB 50052 · GB 50053 · GB 50055 · GB 50069 · GB 50169 · GB 50208 · GB 50254 · GB 50255 · GB 50268 · GB 50336 · GB 50395 · GB/T 50335 · QB/T 1261 · QB/T 2262

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