1.0.1 This code is formulated with view to preventing and controlling the pollution caused by the textile industry as well as instructing and normalizing the design of environmental engineering of the textile industry enterprise.
1.0.2 This code is applicable to the environmental protection design for the construction, renovation and extension engineering in the construction projects of the textile industry enterprise, including the textile industry enterprise-based environmental protection construction project in the development area.
1.0.3 The environmental protection design in the textile industry shall be guaranteed to meet environmental protection requirements; advanced, economic, rational, safe and reliable treatment process shall be selected; new process, new equipment and new material after appraisal are actively adopted; comprehensive resource utilization technology and reclamation technology of waste water are vigorously promoted; and energy-saving and consumption-reducing equipment is selected. In addition, attention is paid to the secondary pollution control.
1.0.4 As for the construction project, the total discharge amount of pollutants must be strictly controlled and the discharge standard shall meet relevant national, professional or provincial provisions. For the renovation and extension projects, they shall be improved through technical updating, based on the reasonable utilization of the existing treatment facilities. In addition, the comprehensive utilization, recovery processing and reclamation of waste water shall be primarily carried out for construction projects.
1.0.5 The textile industry enterprise must implement the approval system of the environmental impact statement (list) and the "Three Simultaneous" system - simultaneous design, simultaneous construction and simultaneous commissioning - for both the environmental protection facilities and the principal part of the engineering; and engineering design of the construction projects whose environmental impact statements (lists) are not approved shall not be delivered. In case of major changes on the construction projects, the design shall be modified according to the reapproved contents according to the original approval procedures.
1.0.6 The environmental protection design of the textile industry enterprise shall not only meet the requirements of this code but also meet those specified in the relevant national current standards.
1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Waste Water Treatment
3.1 General Requirements
3.2 Grid and Grid Mesh
3.3 Collecting Tank
3.4 Water Pump and Pump House
3.5 Regulating Reservoir
3.6 Cooling and Insulation
3.7 PH Adjustment
3.8 Pre-settling Tank
3.9 Treatment of High-concentration Waste Water
3.10 Defoaming Measures
3.11 Treatment of Harmful Toxic Substances
3.12 Agent System
3.13 Oxygen Supply Facilities and Fan Room
3.14 Sludge Dehydration
3.15 Treatment of Dyeing Waste Water
3.16 Treatment of Waste Water of Wool Scouring
3.17 Treatment of Degumming Waste Water of Ramie
3.18 Treatment of Waste Water of Silk
3.19 Treatment of Waste Water of Pulp and Viscose Fibre
3.20 Treatment of Waste Water of Acrylic Fiber Processing
3.21 Treatment of Waste Water of Polyester Processing
3.22 Treatment of Waste Water of Polyamide, Spandex and Polypropylene
3.23 Selection of Waste Water Treatment Plant (Station) and General Layout
4 Reclamation of Waste Water
4.1 General Requirements
4.2 Reclaimed Water Source and Raw Water Quality
4.3 Reclaimed Water Use and Water Quality Standard
4.4 Types of Reclaimed Water System
4.5 Reclaimed Water Treatment System
5 Waste Gas Treatment
5.1 General Requirements
5.2 Treatment of Waste Gas from Viscose Fibre Plant
5.3 Treatment of Waste Gas from Acrylic Fiber Plant
5.4 Treatment of Waste Gas from Polyester Plant
5.5 Treatment of Waste Gas from Polyamide Plant
6 Disposal and Utilization of Waste Residue
6.1 General Requirements
6.2 Disposal of Waste Residue from Wool Mill, Hemp Mill and Printing and Dyeing Mill
6.3 Disposal of Waste Residue in Cotton Mill
6.4 Disposal of Waste Residue from Viscose Plant
6.5 Disposal of Waste Residue from Acrylic Fiber Plant
6.6 Disposal of Waste Residue from Polyamide, Spandex and Polypropylene
7 Noise Control
7.1 General Requirements
7.2 Noise Control
7.3 Noise Control Measures
8 Greening
8.1 General Requirements
8.2 Greening Layout
Appendix A Minimum Clear Spacing between the Drainage Piping of the Waste Water Treatment Plant (Station) and Other Underground Pipelines (Structures)
Explanation of Wording in This Code
1.0.1 This code is formulated with view to preventing and controlling the pollution caused by the textile industry as well as instructing and normalizing the design of environmental engineering of the textile industry enterprise.
1.0.2 This code is applicable to the environmental protection design for the construction, renovation and extension engineering in the construction projects of the textile industry enterprise, including the textile industry enterprise-based environmental protection construction project in the development area.
1.0.3 The environmental protection design in the textile industry shall be guaranteed to meet environmental protection requirements; advanced, economic, rational, safe and reliable treatment process shall be selected; new process, new equipment and new material after appraisal are actively adopted; comprehensive resource utilization technology and reclamation technology of waste water are vigorously promoted; and energy-saving and consumption-reducing equipment is selected. In addition, attention is paid to the secondary pollution control.
1.0.4 As for the construction project, the total discharge amount of pollutants must be strictly controlled and the discharge standard shall meet relevant national, professional or provincial provisions. For the renovation and extension projects, they shall be improved through technical updating, based on the reasonable utilization of the existing treatment facilities. In addition, the comprehensive utilization, recovery processing and reclamation of waste water shall be primarily carried out for construction projects.
1.0.5 The textile industry enterprise must implement the approval system of the environmental impact statement (list) and the "Three Simultaneous" system - simultaneous design, simultaneous construction and simultaneous commissioning - for both the environmental protection facilities and the principal part of the engineering; and engineering design of the construction projects whose environmental impact statements (lists) are not approved shall not be delivered. In case of major changes on the construction projects, the design shall be modified according to the reapproved contents according to the original approval procedures.
1.0.6 The environmental protection design of the textile industry enterprise shall not only meet the requirements of this code but also meet those specified in the relevant national current standards.
Contents of GB 50425-2008
1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Waste Water Treatment
3.1 General Requirements
3.2 Grid and Grid Mesh
3.3 Collecting Tank
3.4 Water Pump and Pump House
3.5 Regulating Reservoir
3.6 Cooling and Insulation
3.7 PH Adjustment
3.8 Pre-settling Tank
3.9 Treatment of High-concentration Waste Water
3.10 Defoaming Measures
3.11 Treatment of Harmful Toxic Substances
3.12 Agent System
3.13 Oxygen Supply Facilities and Fan Room
3.14 Sludge Dehydration
3.15 Treatment of Dyeing Waste Water
3.16 Treatment of Waste Water of Wool Scouring
3.17 Treatment of Degumming Waste Water of Ramie
3.18 Treatment of Waste Water of Silk
3.19 Treatment of Waste Water of Pulp and Viscose Fibre
3.20 Treatment of Waste Water of Acrylic Fiber Processing
3.21 Treatment of Waste Water of Polyester Processing
3.22 Treatment of Waste Water of Polyamide, Spandex and Polypropylene
3.23 Selection of Waste Water Treatment Plant (Station) and General Layout
4 Reclamation of Waste Water
4.1 General Requirements
4.2 Reclaimed Water Source and Raw Water Quality
4.3 Reclaimed Water Use and Water Quality Standard
4.4 Types of Reclaimed Water System
4.5 Reclaimed Water Treatment System
5 Waste Gas Treatment
5.1 General Requirements
5.2 Treatment of Waste Gas from Viscose Fibre Plant
5.3 Treatment of Waste Gas from Acrylic Fiber Plant
5.4 Treatment of Waste Gas from Polyester Plant
5.5 Treatment of Waste Gas from Polyamide Plant
6 Disposal and Utilization of Waste Residue
6.1 General Requirements
6.2 Disposal of Waste Residue from Wool Mill, Hemp Mill and Printing and Dyeing Mill
6.3 Disposal of Waste Residue in Cotton Mill
6.4 Disposal of Waste Residue from Viscose Plant
6.5 Disposal of Waste Residue from Acrylic Fiber Plant
6.6 Disposal of Waste Residue from Polyamide, Spandex and Polypropylene
7 Noise Control
7.1 General Requirements
7.2 Noise Control
7.3 Noise Control Measures
8 Greening
8.1 General Requirements
8.2 Greening Layout
Appendix A Minimum Clear Spacing between the Drainage Piping of the Waste Water Treatment Plant (Station) and Other Underground Pipelines (Structures)
Explanation of Wording in This Code
