次氯酸钠氧化法处理某黄金尾矿淋溶液试验研究  

Experimental research on the treatment of certain gold tailings leaching solution by sodium hypochlorite oxidation method

作　　者：甘欣竺 李国鑫 朱磊 兰馨辉 史涵月 陈艺丹 郭骐瑞 Gan Xinzhu;Li Guoxin;Zhu Lei;Lan Xinhui;Shi Hanyue;Chen Yidan;Guo Qirui(School of Ecological Environment,Institute of Disaster Prevention;Changchun Gold Research Institute Co.,Ltd.)

机构地区：[1]防灾科技学院生态环境学院,065201 [2]长春黄金研究院有限公司

出　　处：《黄金》2022年第12期93-95,共3页Gold

基　　金：中央高校基本科研基金项目(ZY20210306,ZY20210304);国家级大学生创新创业训练计划项目(S202111775013,S202212775006)。

摘　　要：黄金尾矿淋溶液中NH_(4)-N含量高,治理难度大。试验采用次氯酸钠氧化法处理某黄金尾矿淋溶液,考察了废水pH、反应时间和NaClO溶液用量对废水中NH_(4)-N和COD的去除效果。结果表明:NaClO溶液用量对NH_(4)-N和COD去除率的影响最大;在废水pH值为6.00,反应时间为10 min,NaClO溶液用量为80 mL/L的最佳条件下,NH_(4)-N和COD的去除率分别为99.3%和87.5%。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 ofNH_(4)-N and COD have been investigated.The results show that the NaClO dosage has the greatest effect on the NH_(4)-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 NH_(4)-N and COD are 99.3%and 87.5%respectively.

关 键 词：次氯酸钠氧化法 尾矿淋溶液 氨氮 COD 去除率 

分 类 号：TD926.5[矿业工程—选矿]