Detail of GB 28661-2012

Introduction of GB 28661-2012

1 Application scope This standard specifies the discharge limits as well as monitoring and supervision requirements for water and air pollutants of iron ore mining and mineral processing industry enterprises or production facilities as well as relevant provisions for implementation and supervision of this standard. This standard is applicable to the emission management of water and air pollutants of existing iron ore mining and mineral processing industry enterprises or production facilities, as well as the environmental impact assessment, environmental protection facility design, completion acceptance of environmental protection projects for construction projects of iron ore mining and mineral processing industry and the emission management of water and air pollutants after being put into operation. This standard is applicable to pollutant emission behaviors allowed by law; the site selection of the newly established pollution source and the management of the current pollution source in the special protected zone shall be in accordance with the relevant provisions in such laws, regulations and rules as Law of the People’s Republic of China on the prevention and control of atmospheric pollution, Law of the People's Republic of China on prevention and control of water pollution, Law of the People's Republic of China on maritime environmental protection, Law of the People's Republic of China on the prevention and control of solid waste pollution and Law of the People's Republic of China on environmental impact assessment. The discharge control requirements for water pollutants specified in this standard are applicable to the behaviors of the enterprises discharging water pollutants, directly or indirectly, out of their legal boundaries. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. GB/T 6920-1986 Water quality - Determination of pH value - Glass electrode method GB/T 7466-1987 Water quality - Determination of total chromium GB/T 7467-1987 Water quality - Determination of chromium (VI) - 1.5 Diphenylcarbohydrazide spectrophotometric method GB/T 7469-1987 Water quality - Determination of total mercury - Potassium permanganate-potassium persulfate decomposed method - Dithizone spectrophotometric method GB/T 7475-1987 Water quality - Determination of copper, zinc, lead and cadmium - Atomic absorption spectrometry GB/T 7484-1987 Water quality - Determination of fluoride - Ion selective electrode method GB/T 7485-1987 Water quality - Determination of total arsenic - Silver diethyldithiocarbamate spectrophotometric method GB/T 11893-1989 Water quality - Determination of total phosphorus - Ammonium molybdate spectrophotometric method GB/T 11901-1989 Water quality - Determination of suspended substance - Gravimetric method GB/T 11902-1989 Water quality - Determination of selenium - Diaminonaphthalene fluorometric method GB/T 11906-1989 Water quality - Determination of manganese - Potassium periodate spectrophotometric method GB/T 11907-1989 Water quality - Determination of silver - Flame atomic absorption spectrophotometric method GB/T 11910-1989 Water quality - Determination of nickel - Dimethylglyoxime spectrophotometric method GB/T 11911-1989 Water quality - Determination of iron and manganese - Flame atomic absorption spectrometric method GB/T 11912-1989 Water quality - Determination of nickel - Flame atomic absorption spectrometric method GB/T 11914-1989 Water quality - Determination of the chemical oxygen demand - Dichromate method GB/T 15505-1995 Water quality - Determination of selenium - Graphite furnace atomic absorption spectrometric method GB/T 15432-1995 Ambient air - Determination of total suspended particulates - Gravimetric method GB/T 16157-1996 The determination of particulates and sampling methods of gaseous pollutants emitted from exhaust gas of stationary source GB/T 16489-1996 Water quality - Determination of sulfide - Methylene blue spectrophotometric method GB 18871-2002 Basic standards for protection against ionizing radiation and for the safety of radiation sources HJ/T 55-2000 Technical guidelines for fugitive emission monitoring of air pollutants HJ/T 58-2000 Water quality - Determination of beryllium - Spectrophotometric method with erichrome cyanine R HJ/T 59-2000 Water quality - Determination of beryllium - Graphite furnace atomic absorption spectrophotometry HJ/T 60-2000 Water quality - Determination of sulfides - Iodometric method HJ/T 195-2005 Water quality - Determination of ammonia-nitrogen - Gas-phase molecular absorption spectrometry HJ/T 200-2005 Water quality - Determination of sulfide - Gas-phase molecular absorption spectrometry HJ 345-2007 Water quality - Determination of iron - Phenanthroline spectrophotometry (Trial) HJ/T 397-2007 Technical specifications for emission monitoring of stationary source HJ/T 399-2007 Water quality - Determination of the chemical oxygen demand - Fast digestion-spectrophotometric method HJ 485-2009 Water quality - Determination of copper - Sodium diethydlthiocabamate spectrophotometric method HJ 486-2009 Water quality - Determination of copper-2,9-Dimethy-1,10-phenanthroline spectrophotometric method HJ 487-2009 Water quality - Determination of fluoride - Visual colorimetry with zirconium alizarinsulfonate HJ 488-2009 Water quality - Determination of fluoride - Fluorine reagents spectrophotometry HJ 489-2009 Water quality - Determination of silver - Spectrophotometric method with 3,5-Br2-PADAP HJ 490-2009 Water quality - Determination of silver - Spectrophotometry with cation 2B HJ 537-2009 Water quality - Determination of ammonia nitrogen - Distillation-neutralization titration HJ 597-2011 Water quality - Determination of total mercury - Cold atomic absorption spectrophotometry HJ 636-2012 Water quality - Determination of total nitrogen - Alkaline potassium persulfate digestion UV spectrophotometric method HJ 637-2012 Water quality - Determination of petroleum oils and animal and vegetable oils - Infrared spectrophotometry Measures for Automatic Monitoring and Management of Pollution Sources (Decree No.28 of the Ministry of Ecology and Environment of the People's Republic of China) Measures for the Administration of Environmental Monitoring (Decree No.39 of the Ministry of Ecology and Environment of the People's Republic of China) 3 Terms and definitions For the purpose of this standard, the following terms and definitions apply. 3.1 mining process of mining iron ore by open-pit mining or underground mining in iron mines and polymetallic mines with iron ore as the main product   3.2 mineral processing process of separating iron ore by gravity separation, magnetic separation, flotation and their combined processes to obtain iron concentrate 3.3 existing facility iron ore mining and mineral processing industry enterprises or production facilities which have been completed and put into operation or whose environmental impact assessment documents have been approved before the implementation date of this standard 3.4 new facility constructed, renovated and extended construction projects of iron ore mining and mineral processing industry whose environmental impact assessment documents are approved since the implementation date of this standard 3.5 mining wastewater wastewater produced and discharged during mining, including the drainage from underground mining area or goaf area, the drainage water from open-pit mining area or post-mining area, and the wastewater from waste rock yard (including dumping site) 3.6 mine acid wastewater untreated mining wastewater with pH value less than 6 3.7 mineral processing wastewater wastewater produced and discharged during mineral processing, including the wastewater discharged from iron ore in gravity separation, magnetic separation, flotation and their combined technological processes, as well as the wastewater discharged from ore washing, ore crushing, concentration tank of ore dressing plant and tailings pond, etc. 3.8 direct discharge behavior that the pollutant emission unit directly discharges water pollutants to the environment 3.9 indirect discharge behavior that the pollutant emission unit discharges water pollutants to public wastewater treatment system 3.10 public wastewater treatment system enterprise or organization collecting wastewater with pipes, providing wastewater treatment service for more than two pollutant emission units, and whose drainage is able to meet the requirements of relevant emission standards. It includes municipal wastewater treatment plants and regional (including all kinds of industrial parks, development zones, industrial clusters, etc.) wastewater treatment plants with the wastewater treatment degree reaching Level II or above 3.11 effluent volume volume of wastewater discharged from production facilities or enterprises to outside the legal boundaries of enterprises, including various wastewater (including domestic sewage and cooling wastewater in plant area and the water discharged from boilers and power plants in plant area) discharged out, which are directly or indirectly related to production 3.12 benchmark effluent volume per unit product upper limit of wastewater discharge for unit products specified with a view to verifying the water pollutant emission concentration 3.13 standard condition state at temperature 273.15K and pressure 101,325Pa. The emission concentration of air pollutant specified in this standard refers to the dry air value under standard condition 3.14 factory (field) boundary legal boundary of mining yard, ore dressing plant, dumping site, waste rock yard, tailings pond, etc. of iron ore mining and mineral processing industry enterprises or actual boundary where legal boundary is unavailable 3.15 stack height height from the ground level of the stack (or its main building structure) to the outlet of the stack, m

Contents of GB 28661-2012

Foreword IV 1 Application scope 2 Normative references 3 Terms and definitions 4 Requirements for pollutant emission control 5 Requirements for pollutant monitoring 6 Implementation and supervision