锅炉渣对农村生活污水磷的吸附研究

采用锅炉废渣为研究材料，研究锅炉废渣对农村生活污水中磷的吸附效果及吸附平衡。结果表明：锅炉废渣对磷有良好的处理效果，30℃时，处理时间60min，磷去除效率达到93％，出水水质符合城镇污水排放标准一级标准指标。吸附动力学符合一级动力学方程，r=-0．0496C。吸附等温式符合Freundich吸附等温式，30℃时，q=-0．0023c^0.9879。可见利用锅炉废渣处理农村生活污水，是一种经济而有效的方法。

Adsorption Characteristics of Boiler Slag to Phosphorus of Rural Sewage

Rural sewage is an urgent environmental issue need to address,and nitrogen and phosphorus are major factors causing water eutrophication. In this paper,boiler slag is used as main material for phosphorus adsorption,and the adsorption efficiency and adsorption balance are observed. The results show a high efficiency with 60 rain as well as a 93% removal rate. And the sorption processes follow one--order kinetics equation with r = -0. 0496 c. The adsorption isotherm complies with Freundich Adsorption Isotherm, while at 30℃ ,. In a word, it is an economic and effective approach for rural domestic sewage treatment with boiler slag.