GB 50988-2014Code for design of environment protection engineering of nonferrous metals industry (English PDF)

Foreword

This code was prepared by China Nerin Engineering Co., Ltd. jointly with China ENFI Engineering Co., Ltd., Shenyang Aluminum and Magnesium Engineering and Research Institute Co., Ltd. and China Nonferrous Metals Processing Technology Co., Ltd., according to the requirements of the "Notice on Printing and Distributing the Plan for the Formulation and Revision of Engineering Construction Standards and Codes in 2010 (First Batch)" (Jianbiao [2010] No. 43) issued by the Ministry of Housing and Urban-Rural Development.

During the preparation of this code, the drafting group carried out extensive and in-depth investigation and research, summarized the recent practical experience in the development of the nonferrous metals industry, drew on advanced production processes and environmental protection technologies, and, on the basis of widely soliciting opinions, finally finalized the code after examination.

This code consists of 8 chapters and 4 appendices, and the main contents include: general provisions, terms, basic requirements, prevention and control of air pollution, prevention and control of water pollution, prevention and control of solid waste pollution, prevention and control of noise pollution, environmental monitoring, etc.

The provisions printed in bold type in this code are mandatory provisions and shall be strictly implemented.

The Ministry of Housing and Urban-Rural Development is in charge of the administration of this code and the interpretation of the mandatory provisions, the Administration Office of Engineering Construction Standards of the China Nonferrous Metals Industry is responsible for the routine management, and China Nerin Engineering Co., Ltd. is responsible for the explanation of the specific technical contents. During the implementation of this code, all organizations are requested to pay attention to summarizing experience and accumulating data, and may at any time feed back comments and suggestions to China Nerin Engineering Co., Ltd. (address: No. 888 Qianhu Avenue, Nanchang, Jiangxi Province; postcode: 330031; fax: 0791-86757985) for reference in future revision.

Chief development organization: China Nerin Engineering Co., Ltd.

Participating development organizations: China ENFI Engineering Co., Ltd.; Shenyang Aluminum and Magnesium Engineering and Research Institute Co., Ltd.; China Nonferrous Metals Processing Technology Co., Ltd.

1 General provisions

1.0.1 This code is formulated with a view to promoting the comprehensive utilization of resources and cleaner production in the nonferrous metals industry, preventing environmental pollution, and ensuring and improving the quality of environmental protection engineering design and the level of pollution control.

1.0.2 This code is applicable to the design of environmental protection engineering for new, reconstructed and expanded projects of the nonferrous metals industry. This code is not applicable to the design of radioactive pollution control engineering for nonferrous metal mineral development and utilization projects associated with natural uranium and thorium in which the specific activity of a single radionuclide in the crude ore, concentrate or tailings is greater than 1 Bq/g.

1.0.3 The design of environmental protection engineering shall adhere to the principles of cleaner production, circular economy, pollution prevention and control, total quantity control and ecological protection.

1.0.4 Environmental protection engineering of the nonferrous metals industry must be designed simultaneously with the principal part of the project.

1.0.5 The design of environmental protection engineering of the nonferrous metals industry shall comply not only with this code but also with the provisions of the relevant current national standards.

2 Terms

3 Basic requirements

3.0.1 Project design shall be based on the environmental impact report (form) approved by the competent environmental protection administrative department and its approval document, and shall implement the design of all the environmental protection engineering facilities supporting the principal part of the project.

3.0.2 Site selection and general layout shall meet the following requirements:

1 The protection distance between the project and sensitive points shall meet the requirements of the industry access conditions, the safety protection provisions and the environmental impact assessment.

2 The natural conditions of the site shall be favourable to gas dispersion; the site shall be located on the upwind side of the annual minimum wind direction frequency of the residential area and shall meet the protection distance requirements.

3 Site selection shall be carried out after the corresponding hydrogeological and engineering geological data have been obtained, and the engineering geological and hydrogeological conditions of the site shall meet the relevant national environmental protection requirements.

4 The general plan layout shall separate the living area and the administrative office area from the production area. On the premise of meeting the process and hygienic protection requirements, workshops and facilities with heavier pollution shall be arranged in a concentrated manner and located downwind of the annual prevailing wind direction of the plant area.

5 Site levelling of the plant area and road and railway siding works shall be favourable to wastewater collection; the quantities of excavation and filling should be reduced and the earthwork balance should be controlled; topsoil shall be protected and utilized. Borrow areas and spoil areas shall be provided with soil and water conservation measures and shall be greened and reclaimed.

3.0.3 Nonferrous metals industry projects shall comply not only with the provisions of the current national standards on cleaner production and energy saving but also with the following provisions:

1 Clean materials and energy should be used in the production process.

2 Powdery, pasty and liquid materials shall be stored, transported and conveyed in enclosed form.

3 Advanced technologies, processes and equipment with high resource and energy utilization rates, low pollutant generation and small land occupation shall be adopted; the pollution-generating steps of the process flow shall be reduced, and measures to reduce material consumption, energy consumption and pollutant generation shall be taken.

4 The full composition analysis of raw materials shall include the content of harmful elements such as mercury, cadmium, lead, arsenic and chromium; the design of environmental protection engineering shall carry out whole-process balance calculation and control according to the composition and properties of the harmful elements in the raw materials, and valuable elements shall be recovered.

5 Waste gas, wastewater, solid waste, waste heat, etc. generated in the production process should be comprehensively utilized, and their discharge shall comply with the relevant standards and the provisions of the environmental impact assessment.

3.0.4 Environmental risk prevention and emergency treatment facilities shall be provided at places where hazardous chemicals are stored, conveyed, produced and used.

3.0.5 Pollution control measures shall avoid or reduce secondary pollution, and the best or advanced feasible pollution control technologies recommended by the state should be adopted.

3.0.6 Pollutant discharge outlets shall be provided with metering instruments, monitoring and control devices, discharge monitoring facilities and signs, and shall comply with the national and local standards and provisions on the standardized setting of discharge outlets.

3.0.7 Pollution control measures shall meet the requirements of the environmental impact assessment and shall ensure that the discharge of pollutants meets the requirements of the relevant discharge standards and total quantity control indicators.

3.0.8 The main engineering design for ecological environment protection shall include, but not be limited to, the following:

1 treatment of surplus soil after surface excavation and filling, centralized stockpiling and utilization of topsoil, and site reclamation or ecological restoration;

2 staged reclamation, vegetation restoration and greening works of waste rock dumps, tailings ponds and slag yards;

3 slag retaining, earth retaining, slope trimming, slope protection and water interception works, and geological hazard prevention and control works;

4 other temporary protection works and measures for ecological restoration.

3.0.9 The environmental remediation plan for contaminated sites shall include, but not be limited to, the following:

1 the current status, category, extent, degree, etc. of the contamination of the industrial site;

2 the environmental remediation objectives;

3 the selected remediation scheme;

4 the remediation works and their investment, cost estimate and effect analysis.

3.0.10 The content and depth of the environmental protection chapter in the preliminary design specification shall be in accordance with Appendix A of this code. The technical documents of the pre-design stage of a project include the project proposal, the pre-feasibility study report, the feasibility study report, the project application report, etc.

3.0.11 The investment in environmental protection engineering shall include the investment in the equipment and supporting facilities for the prevention and control of pollution by waste gas, wastewater, solid waste, noise, etc. and for environmental monitoring, as well as in environmental protection facilities such as ecological protection works. The division of the environmental protection engineering facilities of a project may be in accordance with Appendix B of this code.