农业环境科学学报2013，Vol.32Issue(7)：1437-1444,8.DOI:10.11654/jaes.2013.07.022
镁橄榄石与钢渣除磷特性的比较研究
Comparison of Phosphorous Adsorption by Forsterite and Furnace Slag
摘要
Abstract
Media is one of the key factors fortreatment performanceof the constructed wetland.Forsterite and furnace slag were used to compare the characteristics of phosphorous adsorption.Results of batch test showed that the phosphorus adsorption process of both forsterite and furnace slag fitted.with the Langmuir isothermal adsorption equation very well,and their saturation adsorption capacities were 161.29 mg· kg-1 and 666.67 mg· kg-1,respectively.The pseudo second-order rate equation could fit the experimental data of forsterite and furnace slag well (R2 were 0.982 1 and 0.983 4,respectively),and the phosphorus desorption from both forsterite and furnace slag was low.At the column height of 600 mm and hydraulic loading rate (HLR) of 0.8 m3· (m2· d)-1,results of dynamic adsorption test showed that both the forsterite packed column and furnace slag packed column had significant performance of phosphorous removal,i.e.,77.4％ and 87.8％ of the average removal rates,respectively.All these results clearly showed that both forsterite and furnace slag were suitable as media of the constructed wetland for phosphorus removal.关键词
镁橄榄石/人工湿地/基质/除磷Key words
forsterite/ constructed wetland/ media/ phosphorous removal分类
资源环境引用本文复制引用
管策,王亚炜,魏源送,郑祥,刘吉宝..镁橄榄石与钢渣除磷特性的比较研究[J].农业环境科学学报,2013,32(7):1437-1444,8.基金项目
国家科技重大专项"水体污染控制与治理"(2009ZX07209-005) （2009ZX07209-005）
