摘要
通过在500℃下对甘肃长石进行2h煅烧，得到改性长石，研究其对含磷废水的除磷效果。实验结果表明．在磷浓度为10mg／L、pH值大于4时，粒径在0．45-1．00mm的改性长石对磷有较好的去除效果、改性长石对磷的吸附等温线符合Freundlich方程，相关系数在0．99以上。此长石应用于实际生活污水处理中，对磷的去除率达807％，符合国家排放标准．
The adsorption of feldspar, collected from Gansu province, China, on removing the hosphate-contaminated in waste water was discussed in this research. Results show that on the tested feldspar, high phosphate-contaminated adsorption capacity is observed when the initial concentration of phosphate-contaminated which is the size of 0.45-1.00mm heated treatment by 500℃ for 2 hours is 10mg/L and pH value above 4. The phosphate-contaminated adsorption data onto feldspar are well fitted by Freundlich isotherm, with the correlation coefficients over 0.99. This feldspar can remove phosphate-contaminated in municipal wastewater with the efficiency of 80.7%.
出处
《非金属矿》
CAS
CSCD
北大核心
2008年第5期56-58,共3页
Non-Metallic Mines
基金
甘肃省经贸委
教育厅重点资助项目(GJ00-14-3)
甘肃省环境保护局资助项目(GH99-16)
关键词
长石
除磷
吸附
feldspar phosphate adsorption
