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2019
Experimental research on the treatment of certain gold tailings leaching solution by sodium hypochlorite oxidation method
- English Author：
- School of Ecological Environment,Institute of Disaster Prevention|School of Ecological Environment,Institute of Disaster Prevention|School of Ecological Environment,Institute of Disaster Prevention|Changchun Gold Research Institute Co.,Ltd.|School of Ecological Environment,Institute of Disaster Prevention|School of Ecological Environment,Institute of Disaster Prevention|School of Ecological Environment,Institute of Disaster Prevention
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Abstract:
The leaching solution of gold tailings contains much ammonia nitrogen and is difficult to treat.In the test,the sodium hypochlorite oxidation method has been applied to the treatment of certain gold tailings leaching solutions.The effects of pH,reaction time,and dosage of NaClO solution on the removal of NH4-N and COD have been investigated.The results show that the NaClO dosage has the greatest effect on the NH4-N and COD removal rate.Under the optimal treatment conditions:pH of 6.00,the reaction time of 10 min,and NaClO dosage of 80 mL/L,the removal rates of NH4-N and COD are 99.3 % and 87.5 % respectively.
Keywords:
sodium hypochlorite oxidation method;tailings leaching solution;ammonia nitrogen;COD;removal rate
