GB 28661-2012Emission standard of pollutants for the iron ore mining and mineral processing industry (English PDF)

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 Chinese The Law of the People's Republic of China on the Prevention and Control of Air Pollution, the State Council's Decision on Implementing the Scientific Outlook on Development and Strengthening Environmental Protection, etc. Regulations and "Opinions of the State Council on the Preparation of National Main Functional Area Planning" to protect the environment, prevent pollution, and promote iron ore mining This standard is formulated by selecting industrial production processes and advances in pollution control technologies. This standard specifies the limits, monitoring and monitoring requirements for water and air pollutants in iron ore mining and production enterprises. Promote Coordinated development of regional economy and environment, promote the adjustment of economic structure and the transformation of economic growth mode, and guide iron ore mining and industrial students The development direction of production technology and pollution control technology, this standard specifies the special emission limits for water and air pollutants. Iron ore mining and production enterprises emit odorous pollutants, and environmental noise is applied to the corresponding national pollutant discharge standards. The identification, treatment and disposal of body waste shall be subject to national solid waste pollution control standards. This standard is the first release. Since the implementation of this standard, the "Water Industry Pollutant Emission Standards for the Iron and Steel Industry" (GB 13456-92) and "Large Relevant provisions in the Comprehensive Emission Standard for Air Pollutants (GB 16297-1996). Local provincial people's governments may formulate local pollutant discharge standards for pollutants not specified in this standard; The pollutants items that have been stipulated in this standard may be formulated with local pollutant discharge standards that are stricter than this standard. This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection. This standard was drafted. Maanshan Mine Research Institute of China Steel Group, Environmental Standards Institute of the Ministry of Environmental Protection. This standard was approved by the Ministry of Environmental Protection on June 15,.2012. This standard has been implemented since October 1,.2012. This standard is explained by the Ministry of Environmental Protection. Emission standards for industrial pollutants in iron ore mining

1 Scope of application

GB 28661-2012 is the Chinese emission standard for iron ore mining and processing. It is a mandatory standard covering an industry that operates at enormous scale in China and whose environmental impact is dominated not by the ore but by everything around it: the water used to wash and concentrate it, the tailings, the dust from blasting, crushing, conveying and stockpiling, and the drainage from the workings. The standard sets the water pollutant discharge limits for the existing and the new pollutant discharging units, including suspended solids, chemical oxygen demand, petroleum, fluoride and the metals, the air pollutant emission limits for particulate from the organised and the fugitive sources, the requirements on the monitoring and on the location and specification of the discharge outlets, and the rules for implementation and supervision. It applies to existing operations and to the environmental impact assessment, the abatement design and the completion acceptance of new projects. For a mining company, an environmental consultancy or an authority in China, this is the governing text.

This standard specifies the limits and monitoring of water pollutants and atmospheric pollutants in iron ore mining production enterprises or production facilities. Monitoring requirements, as well as standards implementation and supervision. This standard applies to the management of water pollutants and atmospheric pollutants in existing iron ore mining production enterprises or production facilities. And environmental impact assessment of iron ore mining and industrial construction projects, environmental protection facilities design, environmental protection project completion acceptance and Management of water pollutants and atmospheric pollutants after production. This standard applies to the pollutant discharge behavior permitted by law; the location of newly established pollution sources and the existing special protection areas The management of pollution sources shall be in accordance with the Law of the People's Republic of China on the Prevention and Control of Air Pollution and the Law of the People's Republic of China on Prevention and Control of Water Pollution Law of the People's Republic of China on Marine Environmental Protection, Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Wastes, China The relevant provisions of laws, regulations and rules of the People's Republic of China Environmental Impact Assessment Law are implemented. The water pollutant emission control requirements specified in this standard are applicable to enterprises directly or indirectly discharging water pollution outside their legal boundaries. The behavior of the dye.

2 Normative references

The contents of this standard refer to the terms in the following documents.

GB/T 6920-1986 Determination of water pH value - Glass electrode method

GB/T 7466-1987 Determination of total chromium in water - Potassium permanganate - Dibenzoyl dihydrazide spectrophotometric method

GB/T 7467-1987 Determination of hexavalent chromium in water - Diphenyl hydrazide spectrophotometric method

GB/T 7469-1987 Determination of total mercury in water quality - Potassium permanganate - potassium persulfate digestion - Dithizone spectrophotometric method

GB/T 7470-1987 Determination of lead water - Dithizone spectrophotometric method

GB/T 7471-1987 Determination of cadmium in water -- Dithizone spectrophotometric method

GB/T 7472-1987 Determination of zinc in water -- Dithizone spectrophotometric method

GB/T 7475-1987 Determination of copper, zinc, lead and cadmium - Atomic absorption spectrophotometric method

GB/T 7485-1987 Determination of total arsenic in water - Diethyldithio

GB/T 11893-1989 Determination of total phosphorus in water - Ammonium molybdate spectrophotometric method

GB/T 11894-1989 Determination of total nitrogen in water - Alkaline potassium persulfate digestion - UV spectrophotometric method

GB/T 11901-1989 Determination of suspended solids by weight method

GB/T 11902-1989 Determination of selenium in water 2,

3 Diaminonaphthalene fluorescence method

GB/T 11906-1989 Determination of manganese in water quality - Potassium periodate spectrophotometric method

GB/T 11907-1989 Determination of silver in water -- Flame atomic absorption spectrophotometric method

GB/T 11910-1989 Determination of nickel in water quality - Dimethylglyoxime spectrophotometric method Water quality -- Determination of iron and manganese -- Flame atomic absorption spectrophotometric method

GB/T 11912-1989 Determination of nickel in water quality - Flame atomic absorption spectrophotometric method

GB/T 11914-1989 Determination of chemical oxygen demand in water - Dichromate method

GB/T 15432-1995 Determination of total suspended particulate matter in ambient air

GB/T 16157-1996 Determination of particulate matter in fixed pollution source exhaust gas and sampling method of gaseous pollutants Water quality - Determination of petroleum and animal and vegetable oils - Infrared spectrophotometric method

GB/T 16489-1996 Determination of sulphide content -- methylene blue spectrophotometric method

GB 18871-2002 Basic standards for ionizing radiation protection and radiation source safety HJ/T 55-2000 Technical Guidelines for the Monitoring of Unorganized Emissions of Air Pollutants HJ/T 58-2000 Determination of water quality - Chromium cyanide R spectrophotometric method HJ/T 59-2000 Determination of water quality - Graphite furnace atomic absorption spectrophotometric method HJ/T 195-2005 Determination of ammonia nitrogen in water quality HJ/T.199-2005 Determination of total nitrogen in water -- Gas phase molecular absorption spectroscopy HJ/T 341-2007 Determination of mercury in water quality - Cold atomic fluorescence method (Trial) HJ/T 397-2007 Fixed source exhaust gas monitoring technical specification Water quality -- Determination of copper -- Diethyldithiocarbamate spectrophotometric method

HJ 487-2009 Determination of fluoride in water quality - Zirconium sulphonate Water quality - Determination of fluoride - Fluorescence spectrophotometric method

HJ 535-2009 Determination of ammonia nitrogen in water quality - Nexus reagent spectrophotometric method

HJ 536-2009 Determination of ammonia nitrogen in water quality - Salicylic acid spectrophotometric method

HJ 537-2009 Determination of ammonia nitrogen in water quality - Distillation - Neutralometric titration

HJ 597-2011 Determination of total mercury in water - Cold atomic absorption spectrophotometric method Measures for the Automatic Monitoring and Control of Pollution Sources (Order No. 28 of the State Environmental Protection Administration) Measures for the Administration of Environmental Monitoring (Order No. 39 of the State Environmental Protection Administration)

4 Release limit. Table

4 Limits of atmospheric pollutant emission concentration of existing enterprises Unit. mg/m

3 Pollutant project production process or facility limit pollutant emission monitoring position Ore transport, reloading, mining, crushing, screening, 50 workshops or production facilities exhausts

4.2.2 As of January 1,.2015, existing enterprises will implement the atmospheric pollutant emission limits specified in Table 5.

4.2.3 As of October 1,.2012, new enterprises will implement the air pollutant emission limits specified in Table 5. Table

5 Limits of atmospheric pollutant emission concentration of newly-built enterprises Unit. mg/m

3 Pollutant project production process or facility limit pollutant emission monitoring position Ore transport, reloading, mining, crushing, screening, 20 workshops or production facilities exhausts

4.2.4 According to the requirements of environmental protection work, the density of land development has been high, and the environmental carrying capacity has begun to weaken, or Areas with small environmental capacity, fragile ecological environment, and prone to serious environmental pollution problems requiring special protection measures, The company should strictly control the pollutant discharge behavior of enterprises, and the enterprises in the above regions shall implement the special discharge of atmospheric pollutants as specified in Table 6. Limit. The geographical scope and time for the implementation of special emission limits for atmospheric pollutants shall be administered by the administrative department of environmental protection of the State Council or the province. Level people's government regulations. Table

6 Special emission limits for atmospheric pollutants Unit. mg/m

3 Pollutant project production process or facility limit pollutant emission monitoring position Ore transport, reloading, mining, crushing, screening of particulate matter concentrator 10 workshop or production facility exhaust

4.2.5 Unorganized emissions of corporate air pollutants shall be subject to the limits specified in Table 7. Table

7 Unconformity emission limits of atmospheric pollutants in existing and new enterprises Unit. mg/m

3 Contaminant project production process or facility limit Particulates concentrating plant, dumping site, waste rock yard, tailings pond 1.0

4.2.6 Environmental protection in charge of supervision in the production process of the existing enterprise production and construction projects completed and accepted The administrative department shall monitor the ambient air quality in sensitive areas such as residential, teaching, medical and other uses. Construction The specific monitoring scope of the project is the surrounding sensitive area determined by environmental impact assessment; the existing enterprise that has not conducted environmental impact assessment Industry, the scope of monitoring is the environmental protection administrative department in charge of supervision, according to the characteristics and laws of corporate sewage discharge and local self- However, factors such as meteorological conditions are determined by reference to the relevant environmental impact assessment technical guidelines. Local governments should respond to the environmental quality of their jurisdiction Responsible for taking measures to ensure that environmental conditions meet environmental quality standards.

4.2.7 The production process equipment for generating atmospheric pollutants must establish a local gas collection system and a centralized purification treatment device. Standard emissions. All exhaust cylinders should be at least 15m high. When there is a building within a radius of.200m around the exhaust pipe, the exhaust pipe is high The degree should also be higher than the highest building by more than 3m.

4.2.8 Before the national standard for the production of unit product is not specified, the measured concentration is used to determine the emission of atmospheric pollutants. No basis for compliance.

9 Enterprise wastewater discharge Gap 2 suspended matter 70 70 100 70 300

3 Chemical Oxygen Demand (CODcr) - - 70 -.200 4 ammonia nitrogen - - 15 - 30 5 total nitrogen 15 15 25 15 40 6 total phosphorus 0.5 0.5 0.5 0.5 2.0

7 Petroleum 5.0 5.0 10 5.0 20 8 total zinc 2.0 - 2.0 2.0 5.0 9 total copper 0.5 - 0.5 0.5 2.0

10 Total Manganese 2.0 - 2.0 2.0 4.0 11 total selenium 0.1 - 0.1 0.1 0.4 12 total iron 5.0 - - - 10

14 Fluoride 8.0 8.0 8.0 8.0 10 15 total mercury

0.01 Workshop or production facility Wastewater discharge 16 total cadmium 0.05 17 total chromium 0.5 18 hexavalent chromium 0.1 19 total arsenic 0.2 20 total lead 0.5 21 total nickel 0.5

22 Total 0.003 23 total silver

0.2 Unit product base Quasi-discharge (m3/t ore) Mining - displacement measurement location Monitoring with pollutants Controlled position with the same dressing 2.0

4.1.5 For the discharge of sewage containing radioactive materials, in addition to the implementation of this standard, it shall also comply with the provisions of GB 18871-2002.

4.1.6 The discharge of mining water pollutants is based on the measured concentration as the basis for determining whether the emissions meet the standards. Concentration of mineral water pollutants The limit applies to the case where the actual displacement of the unit product is not higher than the unit discharge of the unit product. If the actual displacement of the unit product Exceeding the unit product displacement, the measured water pollutant concentration shall be converted into the reference discharge of water pollutant according to formula (1). Emission concentration, and the discharge concentration of water pollutants as the basis for determining whether the emission is up to standard. Product output and row The water volume statistics cycle is one business day. Production of two or more products at the same time in the production facilities of the enterprise, applicable to different emission control requirements or pollution in different industries In the case of dye discharge standards and the discharge of sewage from production facilities, the emission standards shall be implemented. Strict concentration limits, and according to formula (1), the water pollutants reference discharge discharge concentration. Base = rhorho ×sum iiQ (1) In the formula. Base rho - water pollutant baseline discharge discharge concentration, mg/L; Total Q -- the total amount of measured drainage, m3; iY -- the output of a certain product, t; Base iQ - the base product displacement of a product, m3/t; Real rho -- measured water pollutant concentration, mg/L. If the ratio of total Q to sum iiQY is less than 1, then the measured concentration of water pollutants is used as the basis for determining whether the emission is up to standard. according to.