摘要
在有色冶炼生产中,会产生酸性高浓度含砷废水,废水中砷浓度高达上10 g/L。该含砷废水若处理不当或随意违法排放,不仅对水体环境、土壤环境产生威胁,还会对人体和动物产生巨大的危害。通过综述了现有的化学沉淀法、离子交换法、膜分离法、吸附法和生物法等处理方法的原理、适用范围及其优缺点等;基于有色冶炼生产中高浓度含砷废水的特性和传统除砷工艺的局限,提出了梯级沉砷方法,以期为有色冶炼生产中高浓度含砷废水的治理提供参考价值。
In the process of non-ferrous smelting,acidic wastewater containing arsenic with high concentration can be produced,and the concentration of arsenic in wastewater is as high as 10 g/L.If the arsenic containing wastewater is not treated properly or discharged illegally,it will not only threaten the water environment and soil environment,but also cause great harm to human body and animals.The principle,application scope,advantages and disadvantages of existing chemical precipitation method,ion exchange method,membrane separation method,adsorption method and biological method were reviewed.Based on the characteristics of high-concentration arsenic wastewater in non-ferrous smelting production and the limitations of traditional arsenic removal process,a step sedimentation method of arsenic was proposed,in order to provide reference value for the treatment of high-concentration arsenic wastewater in non-ferrous smelting production.
作者
项家成
李刘源
邝申
严迎燕
王文祥
XIANG Jia-cheng;LI Liu-yuan;KUANG Shen;YAN Ying-yan;WANG Wen-xiang(Guangdong Vocational College of Environmental Protection Engineering,Guangdong Foshan 528216;Foshan Engineering Research Center for Safe Disposal and Comprehensive Utilization of Hazardous Waste,Guangdong Foshan 528216,China)
出处
《广州化工》
CAS
2023年第23期15-17,56,共4页
GuangZhou Chemical Industry
基金
广东大学生科技创新培育专项资金“攀登计划”自然科学学术论文类一般项目(项目编号:pdjh2021b0842)
广西重点研发计划资助项目(项目编号:桂科AB19259004)
2022年度广东省高职院校产教融合创新平台项目(项目编号:2022CJPT010)
2022年广东高校科研平台和项目青年创新人才类项目(项目编号:2022KQNCX207)。
关键词
含砷废水
有色冶炼
处理技术
梯级沉砷
arsenic waste water
non-ferrous smelting
processing technology
cascade sink arsenic
