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.
出处
《青岛理工大学学报》
CAS
2007年第6期78-81,共4页
Journal of Qingdao University of Technology
关键词
土壤有机质
亚甲基蓝
吸附等温线
吸附
soil organic matter
methylence blue
adsorption isotherm
adsorption
