饮用水中砷处理技术的研究进展

来源期刊：有色金属科学与工程2012年第3期

论文作者：严群 余洋 周娜娜

文章页码：74 - 79

关键词：饮用水；除砷；混凝；吸附；离子交换；膜技术

Key words：drinking water; arsenic removal; flocculation; adsorption; ion exchange; membrane technique

摘    要：简单介绍了饮用水中砷的来源及危害，重点阐述了发展较为成熟的饮用水除砷技术，包括：混凝/沉淀法、吸附法、离子交换法、膜技术以及生物技术，通过分析比较可知，各种技术各具优缺点，混凝沉淀法和吸附法已被广泛应用；对环境条件要求较高的离子交换法和膜技术发展受到限制；生物技术具有良好的环境效益，应用前景广阔最后对我国饮用水除砷技术的发展方向进行了展望，指出从我国基本国情考虑，混凝吸附为主的小型除砷装置占优势；从长远角度考虑，离子交换法和膜技术最具应用前景；从环境保护的角度看，生物技术高效廉价，必将引来更多的关注和研究。

Abstract: Based on introducing the sources and hazards of arsenic in drinking water, this article discusses the technology development of removing arsenic from drinking water, including: flocculation/precipitation, adsorption, ion exchange, membrane technique and bio-technology. Each technology has their advantages and disadvantages. Comparison analysis reveals that coagulation/precipitation and adsorption methods have been widely used. The development of ion exchange and membrane technology are limited owing to their higher environmental requirements. The most promising one is bio-technology for its environment friendliness. The development prospect of arsenic removal from drinking water in China is forecasted. Small-scaled arsenic removal devices applying adopting flocculation and adsorption technologies are in a prevailing position considering China’s national condition of imbalanced economic development. From a long-term perspective, ion exchange and membrane technologies have larger application prospects. Bio -technology will attract more attention and research thanks to its high performance and low cost from the view of environmental protection.