摘要
综述了我国饮用水中的嗅味问题及其国内外研究进展,着重讨论了我国面临的饮用水中嗅味问题的现状、水中嗅味来源及饮用水中嗅味的定性定量分析技术、致嗅物质组成特性、典型致嗅物质的去除技术及工艺.旨在阐明除了土嗅素(geosmin)和2-甲基异莰醇(2-MIB)等微生物代谢产物外,硫醇硫醚类厌氧分解产物也是我国饮用水中重要的致嗅物质.硫醇硫醚类致嗅物质于2006年首次在东莞饮用水中发现,后被证明也是2007年太湖饮用水危机中的主要致嗅物质.Geosmin和2-MIB的吸附效果好于氧化,而硫醇硫醚类致嗅物质易于被氧化去除,不易被吸附去除.需要尽快开展我国饮用水中致嗅物质组成特性及典型致嗅物质去除技术和工艺的研究,形成应对不同水源、不同季节、不同致嗅物质嗅味的饮用水处理工艺.
Tastes and odors problems （T＆Os） in China and studies on T＆Os are reviewed, especially on aspects of the present situation in China, sources of T＆Os in water,T＆Os qualitative ＆ quantitative technology,odorant composing characters, removal technologies and processes on typical odorant in drinking water. This review aims to elucidate that besides microbial metabolism product such as geosmin and 2-MIB, organic anaerobic decomposition product such as thiol-thioether were also main odorant in drinking water of China. Thiol-thioether odorant which was found in drinking water of Dongguan in 2006 for the first time, was proved to be the main odorant in Taihu Lake drinking water risk in 2007 as well. Geosmin and 2-MIB were more easily removed by adsorption than oxidation, but thiol-thioether was easily removed by oxidation not by adsorption. In order to cope with T＆Os in different water source, different season and different odorant, studies on odorant composing character, removal technology, mechanism and process of typical odorant should be carried out as soon as possible in China.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2009年第2期583-588,共6页
Environmental Science
基金
国家自然科学基金项目(50778097)
国家科技支撑计划项目(2007BAC26B03)
