摘要
为解决含砷酸性细菌氧化浸出液循环使用和对外排放造成环境污染的问题,进行了氢氧化钙中和脱砷试验研究。试验结果表明,用氢氧化钙一段中和处理,当溶液终点pH在3．5～6．0范围时,脱砷率近100%,脱砷后的溶液砷质量浓度降至0．5 mg/L以下,可以作为循环水使用,也符合含砷废水的排放要求。
To solve environmental pollution problem caused by drainage and recycle of acidic bacteria oxidation lixivium with arsenic, the tests for removing arsenic in lixivium by calcium hydroxide neutralization are examinaed. The test reuslts show that lixivium removed arsenic can be recycled or discharged. Under conditions of solution pH 3.5～6.0, the rate of arsenic-removal is almost 100%, and content of arsenic in drainage is less than 0. 5 mg/L.
出处
《湿法冶金》
CAS
2006年第2期100-102,共3页
Hydrometallurgy of China
关键词
含砷浸出液
氢氧化钙
中和
脱砷
lixivium with arsenic
calcium hydroxide
neutralization
dearsenication
