有机质对土壤吸附性能的影响研究  

Study on abdsorption of methylence blue from aqueous solution onto soil with different organic matter contents

作　　者：张娇[1] 耿永娟[2] 朱世富 昌晶[1] 陈翔[1] 

机构地区：[1]青岛农业大学资源与环境学院,青岛266109 [2]青岛理工大学环境与市政工程学院,青岛266033 [3]青岛市麦岛污水处理厂,青岛266071

出　　处：《青岛理工大学学报》2007年第6期78-81,共4页Journal of Qingdao University of Technology

摘　　要：采用了砂土与有机肥按不同比例配制有机质含量不同的4种土样为吸附剂,研究土壤对亚甲基蓝溶液的吸附性能.实验结果表明,4种土样对亚甲基蓝均有较好的吸附性能.20℃时,吸附规律较好的符合langmuir吸附等温式;pH对吸附性能有较大影响,且随有机质含量的增加,影响加强;有机质的存在可提高土壤对亚甲基蓝的吸附能力;土壤对亚甲基蓝的解析量基本随吸附量的增加而增加,但是增加的幅度非常小.Four kinds of soil samples with different organic matter contents are used to study the adsorptive properties of methylence blue onto soil. The result shows, at 20 ℃, soil samples have good adsorptive capacities. The adsorption isotherms match better to Langmuir adsorption isotherm formula; pH has effect on the adsorptive properties, and the effect increases with the increase of pH; Organic matter can improve the adsorptive capacities; and the adsorptive capacities drop but slowly with the decrease of the absorbance.

关 键 词：土壤有机质 亚甲基蓝 吸附等温线 吸附 

分 类 号：X703[环境科学与工程—环境工程]