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合肥市区淮河路、安庆路一带有与河水呈相互补给关系的浅层地下水。这一带居民至今还有使用和饮用井水的情况。 近廿年来,阴离子合成洗涤剂直链型烷基苯磺酸钠(LAS)的应用越来越广泛,居民在井边使用这类物质洗涤衣服的情况亦很普遍,致使LAS污染井水。据报导,在一般情况下,污染源距井的距离不超过30米,但亦有距离更远的。LAS通过需氧细菌的作用,被分解为CO_2、H_2O和硫酸盐,但由于
Hefei City, Huaihe Road, Anqing Road, along with the river was the relationship between the supply of shallow groundwater. There are still cases of residents using and drinking well water in this area. Over the past 20 years, anionic synthetic detergent linear alkyl benzene sulfonate (LAS) is used more and more widely. It is also common for residents to wash their clothes using such substances at the well side, resulting in LAS contamination of well water. It is reported that under normal circumstances, the source of pollution from the well of no more than 30 meters, but also farther away. LAS is decomposed into CO 2, H 2 O and sulfate by aerobic bacteria, but due to