How can the soil contamination be minimized or stopped?
Contamination resulting from mining can be reduced by the adoption of more environmental friendly mining techniques. A good method to be considered is the HGP technique that is being used by a US company, Orex. The proponents of HGP- Haber Gold Process claim that it extracts gold in bulk in significantly less time than is possible with cyanide. It also uses fewer reagents than cyanide meaning that it should be significantly cheaper. Most importantly however, it has no adverse effects environment. Containment of contaminated soil. This can be done where cyanide is used for the gold extraction. A tailings dam can be constructed where hazardous material is settled to degrade naturally. Recycling. This is done to the water in the mining operations. The water from the tailings dam can be used in the gold extraction processes. This reduces the amount of fresh water that becomes contaminated by mine wastes. Phytoremediation. This is growing contaminant absorbing plants. It has been observed t
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