【摘要】 采用超滤法对绍兴市富营养化水源水中的有机物进行了分子量测定，继而考察了不同分子量区间的有机物对色度、紫外吸收的影响，并与淮河（蚌埠段）水及密云水库水中的有机物特性做了比较。发现密云水库水以小分子有机物为主，分子量小于３０００的有机物占总ＤＯＣ的９６．７％，而绍兴水及淮河水（蚌埠段）中有机物相对分子质量分布相对较为均匀，分子量大于３０００的有机物占总ＤＯＣ的比例分别为２８．３７％和３８．２８％。水中有机物特性与其来源密切相关。更多还原

【Abstract】 Ultrafiltration was used in this study to determine the organics molecular weight(MW) distribution in the eutrophic source water of Shaoxing City. The devotion to color and UV254 of organics in each MW range was also investigated. Then the characteristics of organics in the three typical source water (Huai River,Miyun Reservoir and Shaoxing’s eutrophic lake) were compared. It was found that the characteristics of organics in the water relate closely to its source. Organics in Miyun Reservoir are mainly of low MW,with MW<3000 occupying 96.7%,while organics in Shaoxing source water and Huai River cover a more wide MW range,organics with MW>3000 in the source water is 28 37% and 38.28% respectively.更多还原