(Unit: tons)
Product ( process ) | Tons of product pollutant emission factor |
Copper ore mining | Waste rock: 2 tons of underground mines , 6-8 tons of open pit mines . |
Copper beneficiation | Waste water: 20 tons of re-election and 5 tons of flotation . Â |
| Waste residue: 0.94 tons of tailings |
Lead mining | Waste stone: 2 tons |
Lead dressing | Waste water: 6 tons, containing cadmium 0.9-1.5 mg / liter. Â |
| Waste residue: 0.92 tons of tailings . |
Zinc mining | Waste liquid: 2 tons. |
Nickel mining | Waste stone: 2 tons |
Nickel dressing | Waste water: 5-7 tons for one flotation and 4-5 tons for secondary flotation . Â |
| Waste residue: 3 tons of secondary flotation, 50 kg of secondary flotation |
 Copper concentrate boiling furnace melting ( raw material ) | Exhaust gas: 2000-5000 standard meters 3 , SO 2 7%-14% , dust 20-70 g / standard meter 3 . |
Copper reverberatory furnace melting ( raw material ) | Exhaust gas: 2500-3000 standard meters 3 , containing SO 2 4.5% , dust 3.8-7.6 g / standard meter 3 . Â |
| Waste water: 20 tons. |
| Waste residue: 0.65-0.80 tons, containing 0.3%-0.5% copper , 0.5-0.6 g / ton gold , 5-6 g / ton silver |
Copper converter blowing | Exhaust gas: 2400 standard meters 3 , containing SO 2 6% , SO 2 0.5% Â |
| Dust 3-10 g / standard meter 3 |
| Waste residue : 0.8 tons (depending on the grade of copper). |
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Copper electrolysis | Waste water: 1 ton, copper 50-70 mg / liter, sulfuric acid 100 mg / liter |
 Lead ore powder sintering ( raw material ) | Waste water: 2145 standard meters 3 , SO 2 1.5%, dust 10 g / standard meter 3 or 20 kg. |
 Lead blast furnace smelting ( raw material ) | Wastewater: 1200 Nm 3, SO 2 5%, 21-31 g dust / Nm 3 or 33-35 kg.  |
| 80-100 tons of waste water, containing 0.64 mg of arsenic, lead 0.3 mg / l, zinc 1.3 mg / L, arsenic waste dust 3 mg / l, Pb 22 mg / l. |
| Waste residue: 0.37 tons, containing 2.9%-6.7% lead . |
Zinc sintering ( raw material ) | Exhaust gas: 3000 standard meters 3 , dust 19 kg, SO 2 130 kg or concentration 1.6% (depending on the sulfur content of the ore powder), some up to 8%-9% . |
 Zinc distillation | Waste water: 80-100 tons, containing distillation residue 38 mg / liter, arsenic 0.01-0.02 mg / liter, zinc 2 mg / liter.  |
| Waste residue: 0.43 tons |
Nickel sintering ( raw material ) | Exhaust gas: 2000-3000 standard meters 3 , SO 2 concentration 5%-8%, dust 7-10 g / standard meter 3 or 20 kg. |
Nickel blast furnace smelting (raw material) | Exhaust gas: 2000-3000 standard meters 3 , dust concentration 30-50 g / standard meter 3 , or 150-200 kg. Â |
| Waste water: 80-100 grams. |
| Waste residue: 0.3 tons |
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Nickel reverberatory furnace sulphide smelting ( raw material ) | Exhaust gas: 2000-3000 standard meters 3 , SO 2 concentration 0.5%-1.0% , dust 20 kg. Â |
| Waste residue: 0.3 tons |
Copper-nickel mine electric furnace melting ( raw material ) | Exhaust gas: flue gas 1100-1800 standard m 3 , sulfur dioxide 0.1%-0.3% ; flue gas dust: 100% lump ore 0.35-0.5 g / standard m 3 , 100% sintered block 0.6-1.8 g / standard m 3 , 80 % lump ore + 20% ungranulated concentrate 1.8-3.0 g / standard m 3 , 70% lump ore + 30% roasting pellets placed 0.6-1.1 g of standard rice 3 . The soot rate is generally 0.05%-0.4% of the material . Â |
| Waste residue: 1-1 . 2 tons, density 2.7-2.9 tons / m 3 |
 Nickel electrolysis | Exhaust gas: chlorine gas 60-70 kg, concentration 10-28 / standard meter 3 .  |
| Wastewater: 60-100 tons, nickel 150 mg / l, cobalt 1-2 mg / l, chloride 2500 mg / L, sulphate 1000 mg / L, PH value 3-4. |
 Aluminum Electrolytic | Exhaust gas: 800 standard meters 3 , of which HF19 standard meter 3 , SO 2 2.8-5.4 standard meter 3 , CO 2 510 standard meter 3 . HF17 kg by mass , CO330 kg, SO 2 7.9-15.5 kg , CO 2 1000 kg , CH 4 2 kg , 6-8 kg of dust in the dust .  |
| Waste water: 200 tons of dust removal water , fluorine concentration 70 mg / liter. |
| Waste residue: 2-3 tons. |
 Mercury smelting furnace (raw material) | Exhaust gas: 1200-1800 standard meters 3 , containing mercury 20-50 mg / standard meter 3 .  |
| Waste residue: 500-700 tons, containing mercury 0.002-0.005%. |
 Boiling furnace for smelting mercury ( raw material ) | Exhaust gas: 600-800 standard meters 3 , containing mercury 25-1200 mg / liter.  |
| Waste residue: 500-700 tons, containing mercury 0.002-0.005%. |
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Heavy, flotation mercury smelting process (smelting raw materials) | Waste water: 20-35 tons. Â |
| Waste residue: 6-13 tons, containing mercury 0.05%-0.1%. |
Heavy and flotation steam distillation method for refining mercury (concentrate raw materials) | Exhaust gas: 300-500 standard meters 3 , containing mercury 3-20 mg / standard meter 3 . Â |
| Waste water: 2-4 tons. |
| Waste residue: 3-12 tons, containing 0.004-0.01% mercury |
 Alumina | Waste: 1.0-1.8 tons of red mud, the density of 2.7 to 2.9 t / m 3, the bulk density of 0.8-1.0 t / m3 |
Uranium mining | Exhaust gas: main oxygen and its decaying bodies, radioactive dust. 1 ton of uranium radium ratio unspoiled, ore grade of 0.1%, to produce 2.642 × 10 -2 Bq / sec radon. According to the Canadian uranium experience Sigmund season, 1500 tons daily amount of mining mines, exhaust emissions 6000 m 3 per minute  |
| Waste water: 2,700 tons (the difference between different mines is very large, the amount of uranium mine wastewater in arid areas is small), containing strontium, uranium and decaying daughters, containing radium 3.7 × 104 bq / m 3 . |
| 200 tons of waste residue (the amount of solid waste produced in each uranium mine varies greatly) contains about 1.48 × 10 13 lbs of radium (that is, about 400 Curie of radium). |
Uranium ore smelting (ore) | Wastewater: Alkaline Leaching 0.4-1.8 tons, average 1.2k tons, Acid leaching 2.5-5.5 tons, an average of 4 tons of waste. The waste liquid contains radioactive materials such as uranium, thorium and thorium , as well as arsenic and lead. Other wastewater is 0.2-0.3 tons. Â |
| Waste residue: equivalent to the original ore, it can be 0.97-0.99 tons. |
 Uranium refining | Waste water: extract 3 . 78 tons of weak radioactive materials such as uranium 238 and decay products é’ 234 .  |
| Waste residue: precipitated sludge and magnesium fluoride residue, etc., containing a small amount of uranium. |
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December 01, 2019