螯合作用
废水
化学
选矿
选矿
降水
核化学
污水处理
制浆造纸工业
废物管理
无机化学
环境工程
环境科学
物理化学
气象学
工程类
物理
作者
Gaorong Han,Yifan Du,Yanfang Huang,Wenjuan Wang,Shi‐Lei Su,Bingbing Liu
出处
期刊:The minerals, metals & materials series
日期:2022-01-01
卷期号:: 241-249
标识
DOI:10.1007/978-3-030-92563-5_25
摘要
Benzoximic acid (BHABenzohydroxamic acid) is a commonly used collector in mineral processing industry. The accumulation of BHA in water will cause serious damage to environment. Therefore, how to efficiently treat the residual BHABenzohydroxamic acid in mineral processing wastewater is an important issue in the mineral processing industry. In this study, Fe(III) was used as chelating agent to separate BHABenzohydroxamic acid from wastewater by precipitation flotation. The optimum flotation conditions of BHABenzohydroxamic acid and Fe(III) were obtained by optimizing the chelation and flotation processes. The results showed that the chelating efficiency was the highest when the chelating pH was 7 and Fe(III) was 40 mg/L. When the addition amount of surfactant CTAB is 4 mg/L and the gas flow rate is 40 mL/min, the flotation removal rate of BHABenzohydroxamic acid reaches 90%, and the COD removal rate of the solution is 73%. The treated solution meets the first-class standard of industrial waste water discharge.
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