摘要
用膨润土和高岭土为原料,讨论了膨润土吸附剂的改性方法,制备了系列含氰废水净化剂,进行了废水处理实验,测定了净化后水样含氰量,绘制了净化剂用量与CN-去除率关系曲线。研究发现,经复合改性的膨润土净水效果最好。当投加1％的改性膨润土,CN-去除率可达80％以上,并讨论了膨润土的结构与改性机理。为含CN-离子废水处理提供了有价值的参考依据。
A series of water purification agents using bentonite and kaolin as raw materials deals with the method of modifying natural bentonite absorbent. The Crude water from factory is treated by using these water purification agents. Simulating the processing conditions in resolution of KCN, the CN- of the remainder is determined, and the related curve of the feeding amount of the water purification agent corresponding to the removal is drawn,The results show the effect of the composited modifying bentonite is the best. When 1 % of this agent is used, CN - can be removed from watsewater by 80%. And the structure of bentonite and the mechanism for its modification are studied. This research provides valuable experimental data for modifying bentonite and applying them in treating cyanide - containing wastewater.
出处
《河北理工学院学报》
2002年第3期67-71,共5页
Journal of Hebei Institute of Technology
关键词
净化剂
膨润土
改性
含CN^-离子废水
bentonite, modify
wateropurification agent
cyanide-containing wastewater
