During the production process of Chinas gold mines, pollutants with outstanding haards include cyanide, mercury, arsenic, flotation reagents, heavy metal ions, exhaust gas, and waste residue. The main treatment measures are.Get A Quote
The mines in China that use the cyanide gold extraction process must control cyanide pollution. Commonly used methods are alkali chlorine method, acid chlorine method, Inco SO2-air method, acidification-volatile-neutraliation recovery method, and recycling. Method, natural degradation method of tailings, etc. Many cyanide plants in Chinas gold mines adopt the method of recycling the lean liquid, and the general recycling rate is 50 to 60. If there is no tailings pond, sunlight, air, microorganisms and other natural purification and degradation can be used.
The arsenic-containing wastewater comes from industrial discharges of trivalent arsenite, arsenate, arsenic dust and arsenic oxide. There are many treatment methods for arsenic-containing wastewater, and the commonly used methods are lime method, iron manganese method, sulfide method, soft manganese method and comprehensive recovery methods.
Hunan, China is one of the main mining areas for gold extraction from arsenic-bearing minerals. The Golden Cave Gold Mine uses rotary kilns to remove arsenic and recover AsO2O3. However, due to imperfect equipment, management and operation, the escape of flue gas and dust is relatively serious. Therefore, it needs to be continuously reformed and improved.
In addition to the above-mentioned arsenic removal methods for a large number of arsenic-containing gold mines that are urgently to be developed and utilied, it is necessary to actively explore and study some new wet-method arsenic removal technologies, and introduce new methods that have achieved good results from abroad.
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