重金属冶炼废水膜法处理技术进展
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- 英文论文题名：Technical progress of heavy metal smelting wastewater treatment with membrane technology
- 论文作者：柴立元
- 英文论文作者：CHAI Liyuan ; School of Metallurgy and Environment ; Central South University ; Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution
- 年：2016
- 作者机构：中南大学冶金与环境学院;国家重金属污染防治工程技术研究中心;
- 论文关键词：冶炼废水 ; 生物制剂法 ; 反渗透膜法 ; 深度净化 ; 回用
- 英文论文关键词：smelting wastewater ; biological formula method ; reverse osmosis membrane technology ; deep purification ; reuse
- 会议召开时间：2016-11-25
- 会议录名称：第五届全国膜分离技术在冶金工业中应用研讨会论文集
- 语种：中文
- 分类号：X756
- 学会代码：LXJT
- 会议名称：第五届全国膜分离技术在冶金工业中应用研讨会
- 会议地点：中国湖南长沙
- 主办单位：中国膜工业协会、中南大学
- 学会名称：中国蓝星(集团)总公司膜科学与技术编辑部
- 页数：1
- 文件大小：62k
- 原文格式：O
- 会议级别：全国
摘要
重金属冶炼废水浓度高、波动大、成分杂、水量大特征,常常含有砷、镉、铅等多金属离子,氟、氯、有机物及钙离子等,难以适应反渗透膜法处理要求.研究分析了重金属冶炼废水反渗透膜处理进水主要指标要求:钙离子浓度低于100 mg/L、氟离子浓度低于10 mg/L、进水中余氯浓度<0.1 mg/L、COD低于100 mg/L、电导率小于10 000μS/cm.系统综述了重金属冶炼废水处理技术进展,详细介绍了基于微生物特异性的重金属废水"多基团配位-水解-絮凝-脱钙"深度净化新工艺,该工艺出水达到国家地表水三类标准,钙离子可控脱除低于50 mg/L,可作为反渗透膜法深度净化的预处理方法.介绍了株冶集团总废水600 m~3/h"生物制剂法预处理+膜深度净化"工艺工程运行情况,自2009年以来,运行稳定.并对重金属冶炼废水膜法深度处理工艺给出了具体的若干建议.
The heavy metal smelting wastewater,with high pollutants concentration,fluctuant inflow,complex composition,and vast volume,always contains various metal ions(As,Cd and Pb),fluorine,chlorine,organic and calcium ioa Therefore,it is difficult to adapt to the requirements of reverse osmosis membrane(ROM)treatment for this kind of wastewater.In this research,the required inflow parameters for ROM were studied and established.It shows that the ROM inflow should meet following standard:[Ca~(2+)]<100mg/L,[F~-]<10 mg/L,residual chlorine concentration is below 0.1 mg/L,COD <100 mg/L,and the conductivity is less than 10 000μS/cm.This paper summarizes the recently progress on heavy metal smelting wastewater treatment Additionally,a novel purification technology,namely "Complex-Hydrolysis- Precipitation- Decalcification"(CHPD),is described in detail.It is believed that the CHPD,whose effluent can meet the environmental quality standard for surface water(Class Ⅲ),and its[Ca~(2+)]lowers than 50 mg/L,is an appropriate pretreatment process for ROM The running status of CHPD & ROM project(scale:600 m~3/h),established to treat the wastewater for Zhuzhou Smelter Group since 2009,was introduced in this paper.Some suggestions have been raised for deep purification of heavy metal smelting wastewater with ROM technology.
The heavy metal smelting wastewater,with high pollutants concentration,fluctuant inflow,complex composition,and vast volume,always contains various metal ions(As,Cd and Pb),fluorine,chlorine,organic and calcium ioa Therefore,it is difficult to adapt to the requirements of reverse osmosis membrane(ROM)treatment for this kind of wastewater.In this research,the required inflow parameters for ROM were studied and established.It shows that the ROM inflow should meet following standard:[Ca~(2+)]<100mg/L,[F~-]<10 mg/L,residual chlorine concentration is below 0.1 mg/L,COD <100 mg/L,and the conductivity is less than 10 000μS/cm.This paper summarizes the recently progress on heavy metal smelting wastewater treatment Additionally,a novel purification technology,namely "Complex-Hydrolysis- Precipitation- Decalcification"(CHPD),is described in detail.It is believed that the CHPD,whose effluent can meet the environmental quality standard for surface water(Class Ⅲ),and its[Ca~(2+)]lowers than 50 mg/L,is an appropriate pretreatment process for ROM The running status of CHPD & ROM project(scale:600 m~3/h),established to treat the wastewater for Zhuzhou Smelter Group since 2009,was introduced in this paper.Some suggestions have been raised for deep purification of heavy metal smelting wastewater with ROM technology.
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