摘要
主要研究生物法处理电镀铬 [Cr6+ ]废水 .采用生物技术从电镀淤泥中分离出高效还原杆菌——脱硫孤菌 ,探讨菌量、铬离子浓度、溶液值、作用温度和时间等因素对还原杆菌去除溶液中铬离子效率 .结果表明 :在菌废比为 1∶ 1 .4 ,温度控制为 2 0~ 3 5℃ ,p H控制在5~ 7,最佳作用时间 1 6~ 2 0 h,[Cr6+ ]=75 mg/L时 ,Cr6+ 去除率可达 99.9%.
Biological method was adopted to deal with electroplating Cr 6+ wastewater.A strain of bacterium with high efficiency was isolated from electroplating sludge by using biological technique .The factors,including bacteriums quantity,concentration of Cr 6+ ,pH,temperature and reaction time which can make effect on the removal of Cr 6+ were studied.The result shows that Cr 6+ removal rate could reach 99.9% under conditions of the bacteriums quantity and Cr 6+ concentration 75mg/L.
出处
《西北纺织工学院学报》
1999年第4期421-424, ,共4页
Journal of Northwest Institute of Textile Science and Technology
关键词
电镀铬废水
生物处理
还原杆菌
废水治理
电镀淤泥
chromium,electroplating wastewater, biological treatment,reducing bacterium