Evaluation of phosphorus removal from wastewater by soils in rural areas in China
文献类型：期刊论文
| 作者 | Liu, Junxin; Wei, Yuansong; Guo, Xuesong; Liang, Hanwen |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2010 |
| 卷号 | 22期号:1页码:15-22 |
| 关键词 | Adsorption Phosphorus Removal Rural Areas Wastewater Treatment |
| 英文摘要 | Low-cost, easy-maintenance and high-efficiency decentralized wastewater treatment technologies are urgently needed in rural areas of China. Processes with high potential for phosphorus removal are of great interest. However, commonly used treatment methods often do not meet the strict criteria for removing phosphorus from rural wastewater. In order to search an economic and simple technology for phosphorus removal from the common bio-technologies effluent, seven soil types collected from different rural areas in China were investigated for their ability to remove phosphorus. X-ray diffraction (XRD) was used to analyse the mineral structure, and inductively coupled plasma optical emission spectrometer (ICP-OES) was used to analyse the geochemical composition of the soil samples. Three primary minerals - quartz, albite and montmorillonite - were clearly detected. The samples were divided into two soil types, acidic soils and alkaline soils, based on their pH values. The geochemical composition study indicated that a higher percentage of Ca and Mg occurred in alkaline soils (pH > 8) than in acidic soils (pH < 6.5). Adsorption isotherms from batch experiments fitted the Langmuir and Freundlich models well, the maximum P adsorption capacities ranged from 0.256 to 1.598 mg P/g, indicating a high phosphorus removal potential for all of these soils. The P fractions extracted revealed that the sum of NaOH-extracted inorganic P (NaOH-Pi) was the major P component in the acidic soils, and CaCO(3)-bound phosphorus (Ca-P) in the alkaline soils. Dynamic adsorption simulation showed that these soils have the ability to remove phosphorus from wastewater. |
| WOS记录号 | WOS:000273860800003 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21313]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Junxin,Wei, Yuansong,Guo, Xuesong,et al. Evaluation of phosphorus removal from wastewater by soils in rural areas in China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2010,22(1):15-22. |
| APA | Liu, Junxin,Wei, Yuansong,Guo, Xuesong,&Liang, Hanwen.(2010).Evaluation of phosphorus removal from wastewater by soils in rural areas in China.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,22(1),15-22. |
| MLA | Liu, Junxin,et al."Evaluation of phosphorus removal from wastewater by soils in rural areas in China".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 22.1(2010):15-22. |
入库方式： OAI收割
来源：生态环境研究中心
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