硅酸钙处理富营养化湖水中总磷的实验研究  

Study on removal of total phosphorus from eutrophic lake water by calcium silicate

作　　者：张连科[1] 杨冬梅[1] 韩剑宏[1] 曲堂超 

机构地区：[1]内蒙古科技大学能源与环境学院,内蒙古包头014010 [2]包钢稀土(集团)高科技股份有限公司

出　　处：《无机盐工业》2013年第11期41-43,共3页Inorganic Chemicals Industry

基　　金：国家科技支撑计划(2009BAB49B02)

摘　　要：为了研究硅酸钙对富营养化湖水中总磷的吸附性能,分别在夏季和冬季进行了一系列实验研究。经测定,水样中总磷的质量浓度在夏季、冬季分别为0.19 mg/L和0.10 mg/L,实验结果表明:采用硅酸钙处理富营养化湖水,每100 mL水样中投加硅酸钙0.8 g,在pH=6、振荡时间为60 min的条件下,硅酸钙对富营养化湖水中总磷的去除率在夏季、冬季分别可达到89.26%和76.54%;其吸附等温线符合Langmuir和Freundlich吸附等温式,最大吸附量为5.32 mg/g。In order to investigate the absorption performance of calcium silicate to total phosphorus in the eutrophic lake wa- ter, a series of experiments were carried out in summer and winter respectively.The mass concentrations of total phosphorus in water samples were 0.19 mg/L and 0.10 mg/L in summer and winter respectively.The results of experiments showed that the removal rates of total phosphorus in summer and winter could reach 89.26% and 76.54% respectively when pH was 6, the dosage of calcium silicate was 0.8 g per 100 mL water sample ,and the oscillating time was 60 min.The absorption isotherm fitted to Langmuir and Freundlich isotherm formulas, with the maximum absorption capacity of 5.32 mg/g.

关 键 词：硅酸钙 富营养化 吸附 总磷 

分 类 号：TQ132.32[化学工程—无机化工]