改性粉煤灰处理含铬废水的研究  

Study on the Treatment for Chromium-containing Wastewater by Modified Fly Ash

作　　者：刘延慧[1] 

机构地区：[1]攀枝花学院资源与环境工程学院,四川攀枝花617000

出　　处：《广州化工》2012年第23期124-125,149,共3页GuangZhou Chemical Industry

摘　　要：采用几种方法对粉煤灰进行湿法改性,并探讨了改性粉煤灰对实验室模拟含铬废水的去除效果。实验结果表明,AlCl3和FeCl3改性粉煤灰处理5 mg/L含铬废水10 mL,调节pH值4,投加3 g改性粉煤灰,反应90 min后,六价铬的去除率可达99%。因此,粉煤灰可以作为一种有效的吸附剂来处理含铬废水。The fly ash, modified by several methods was used to conduct adsorption treatment experiment, simulating chromium-containing wastewater. The result showed that the removal rate of sixvalent chromium can reach 99% in the treatment of 10 mL wastewater with sixvalent chromium of 5 mg/L concentration under conditions, pH 4, and 3 g of fly ash modified by A1Cl3 and FeCl3 and 90 min of reaction time. So it can be used as a kind of effective adsorbent in chro-mate wastewater treatment.

关 键 词：粉煤灰 改性 六价铬 吸附作用 

分 类 号：X703.1[环境科学与工程—环境工程]