| 巢湖湖岸砂石的磷吸附特性研究 |
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| 引用本文： | 蔡莹,吴蕾,陈云峰. 巢湖湖岸砂石的磷吸附特性研究[J]. 环境工程学报, 2012, 6(4): 1215-1219 |
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| 作者姓名： | 蔡莹 吴蕾 陈云峰 |
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| 作者单位： | 1. 安徽大学资源与环境工程学院,合肥,230039
2. 安徽省环境科学研究院,安徽省污水处理技术重点实验室,合肥230061 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项巢湖项目（2008 ZX07103-007） |
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| 摘 要： | 以巢湖湖岸上富含铁、铝、锰等元素的砂石为实验材料,研究其对水体中磷的吸附效果。实验表明:在砂石对磷的吸附过程中,同时存在着物理吸附和化学吸附,且以化学吸附作用为主,符合准二级动力学模型;砂石对磷的作用与溶液初始磷浓度有关,磷释放与吸附的临界浓度点约为0.04 mg/L;砂石对磷的吸附符合Langmuir等温吸附方程,最大吸附量约为1 428.57 mg/kg,对磷的吸附效果比普通沙石要好,且经济易得。
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| 关 键 词： | 巢湖 砂石 吸附 磷 |
Research on phosphorus adsorption properties of sandstone from Chao Lake shore |
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| Cai Ying,Wu Lei and Chen Yunfeng. Research on phosphorus adsorption properties of sandstone from Chao Lake shore[J]. Techniques and Equipment for Environmental Pollution Control, 2012, 6(4): 1215-1219 |
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| Authors: | Cai Ying Wu Lei Chen Yunfeng |
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| Affiliation: | 1.School of Resources and Environmental Engineering,Anhui University,Hefei 230039,China; 2.Anhui Provincial Academy of Environmental Science,Anhui Provincial Key Laboratory of Wastewater Treatment Technology,Hefei 230061,China) |
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| Abstract: | The sandstone in Chao Lake shore,which rich in iron,aluminum,manganese and other elements,was used to study the adsorption of phosphorus in water.Results show that there is both physisorption and chemisorption in the adsorption process,and chemisorption is dominant.The adsorption process accords with the quasi secondary dynamic model.The adsorption effect is related with initial phosphorus concentration,and the critical concentration point of phosphorus release and adsorption is about 0.04 mg/L.The phosphorus adsorption generated by sandstone accords with Langmuir isotherm equation,and the maximum absorption capacity is about 1 428.57 mg/kg.The peculiar sandstone is better than ordinary sandstone in phosphorus adsorption,which is economically available. |
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| Keywords: | Chao Lake sandstone absorption phosphorus |
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