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沉淀和膜技术去除水体As(V)综述

Review on As(V) Removal from Water by Precipitation and Membrane Technology
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摘要 介绍了沉淀技术和膜技术去除水体As(V)的原理,分析了影响其处理效果的主要因素、对各项技术的国内外应用研究和进展情况进行了阐述。对技术尚存问题进行了总结,有针对性地提出了解决对策,并对技术的发展方向与应用前景做出了展望。沉淀技术需改进工艺以控制药剂的投加量、产生的大量污泥固化或资源化利用、电磁混凝技术进一步发展以及采用清洁能源发电是其发展方向。膜技术中的纳滤技术优势明显,混凝工艺结合低压膜利用更为经济,膜污染、浓水处理及污泥处置问题是该技术的研究方向。 The principles of As(V) removal from water by precipitation and membrane technologies were briefly introduced, and the effect of main factors on treatment efficiency was analyzed, the application research and research progress of technologies at home and abroad were reviewed. The current problems of technologies were summarized and solutions were proposed, development directions and application prospects were also put forward. It needed to optimize the precipitation process to control medicament dosage, solidified and utilized a large amount of generated sludge. Further development of electrocoagulation and magnetic coagulation and power generation with clean energy was the development direction. The nanofiltration had obvious advantage in membrane technologies, and the coagulation process combined with low pressure membrane was more economical. the solutions for membrane fouling, concentrated water and sludge treatment were the research directions of the membrane technology.
作者 姚仁达 杨宏 YAO Renda, YANG Hong (Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering,
出处 《水处理技术》 CSCD 北大核心 2018年第2期6-10,共5页 Technology of Water Treatment
基金 国家863计划项目(2006AA06Z308)
关键词 As(V)去除 沉淀技术 膜技术 As(V) removal precipitation technology membrane technology
作者简介 姚仁达(1985-),女,博士研究生,研究方向为水处理理论及技术;联系电话:15901088281;电子邮件:yaorenda@163.com;联系作者:杨宏,教授;电子邮件:yhong@bjut.edu.cn
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