还原法处理电镀废水后铬反弹成因分析与对策  

The problem and countermeature about electroplating wastewater with reduction method

作　　者：夏爱军[1] 王江梅 张新国 

机构地区：[1]潍坊高等职业学院 [2]潍坊市环保局,山东潍坊261041

出　　处：《环境污染与防治》2003年第2期107-108,共2页Environmental Pollution & Control

基　　金：山东省环保局基金项目 ( No. 0 0 0 15 1)

摘　　要：从化学热力学和电化学理论出发 ,结合目前普遍采用的还原 -固体分离法处理含铬废水工艺 ,对固液分离后的上清液和沉降污泥 Cr6 +含量以及 Cr3+～ Cr6 +之间的形态转化相关性进行研究和分析 ,进而提醒人们要特别注意控制含铬污水中铬反弹及全过程处理的完整性。Proceed from the theory of chemistry thermodynamics and electrochemistry, combing with the technology of reduction-solid and liquid separated method to deal with chromium content of wastewater, that universally used at present, the content of Cr + {6+ } in the clear above liquid and the sediment along with the form changing that occurred in Cr + {3+ }～Cr + {6+ } were analysed. Special attention to later period of dealing with the chromium content in the wastewater and the completeness of the whole process should be given. ;

关 键 词：絮凝 固液分离 化学自由能 反应方向 综合利用 还原法 电镀废水 含铬废水 

分 类 号：X703[环境科学与工程—环境工程]