生物法治理宝钢2030mm冷轧混合含铬废水的条件选择  

Condition Selection for the Microbiological Method Used to Deal with Chromium-containing Waste Water from Baosteel 2030mm Cold Rolling

作　　者：俞勇梅[1] 周渝生[1] 夏曙演[1] 白凌[1] 张晓旗[1] 李福德[2] 李昕[2] 

机构地区：[1]宝钢分公司,上海201900 [2]中科院成都生物所,四川成都610041

出　　处：《宝钢技术》2005年第3期51-53,60,共4页Baosteel Technology

基　　金：国家自然科学基金;钢铁联合基金资助,项目批准号50130030。

摘　　要：主要介绍了复合功能菌处理宝钢2030mm冷轧混合含铬废水时适宜条件的试验研究。试验结果表明,废菌比小于50:1,pH为1-4,在振荡或通氮气的操作方式下(所需振荡时间至少应大于5min),温度为-4℃-50℃时,出水中六价铬浓度均小于0.5mg/L,通空气搅拌对复合功能菌去除Cr6+会产生不利影响。The research on proper condition selection for the microbiological method which is used to deal with Baosteel 2030mm cold rolling chromate waste water has been conducted. The results show that the effluent s hexavalent chrome concentration will be lower than 0.5 mg/L under the following operation conditions: the ratio of waste water and biomass lower than 50:1, pH value between 1-4, temperature between-4℃-50℃, and the operation should be done through shaking and aerating with nitrogen (the shaking time or aerating time should last 5 minutes at least) .The results also show that it will be disadvantageous if the removal of hexavalent chrome from the waste water is operated under aeration.

关 键 词：六价铬 含铬废水 生物法 

分 类 号：X703[环境科学与工程—环境工程]