火山岩矿物材料处理生活污水中磷的研究  

Research of Phosphate Removal in Sewage Treatment by Lava

作　　者：曹宇[1] 杨琦[1] 尚海涛[1] 慕志波[1] 

机构地区：[1]中国地质大学(北京)水资源与环境学院,北京100083

出　　处：《环境科学与技术》2010年第S2期220-223,共4页Environmental Science & Technology

基　　金：国家自然科学基金项目(40102027;50578151);北京市自然科学基金项目(8052017);北京市产学研项目(51900265005);国家科技重大专项(2009ZX07207-008;2009ZX07419-002;2009ZX07207-001)

摘　　要：文章对新型火山岩矿物治理污水中磷的规律进行研究,研究火山岩矿物投加量、初始PO43-浓度、温度对去除污水中PO43-的影响。试验结果表明:PO43-的初始浓度一定时,随着火山岩投加量的增加吸附能力增强;在火山岩投加量不变的情况下,火山岩对低浓度的磷有较强的吸附能力;火山岩对PO43-的吸附随着温度的升高而增加,该反应是吸热反应,温度升高有利于反应的进行;火山岩对PO43-的吸附模式符合Langmuir和Freundlich方程,且活化能Ea为20.6kJ/mol。The effect of various factors such as lava dose,initial concentration of phosphate and temperature on phosphate adsorption was studied using manual simulation phosphate wastewater.Experimental results indicated that the phosphate adsorption increased with increasing lava dosage when initial concentration of phosphate was limited.The adsorption ability enhanced at low concentration of phosphate under the same lava dosage.The adsorption quantity of phosphate increased with increasing temperature and the adsorption was an endothermic reaction.The adsorption data fitted well to the Langmuir and Freundlich equation,moreover,the activation energy Ea is 20.6kJ/mol.

关 键 词：火山岩 除磷 吸附能力 影响因素 

分 类 号：X703[环境科学与工程—环境工程]