The 2007 water crisis in Wuxi, China: analysis of the origin.
The 2007 water crisis in Wuxi, China: analysis of the origin.
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DOI：
10.1016/j.jhazmat.2010.06.006
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发表时间：
2010-10
影响因子：
13.6
通讯作者：
Xiao-jian Zhang;Chao Chen;Jianbao Ding;A. Hou;Yong Li;Zhang-bin Niu;Xiao Su;Yanjuan Xu;E. L
中科院分区：
文献类型：
--
作者：
Xiao-jian Zhang;Chao Chen;Jianbao Ding;A. Hou;Yong Li;Zhang-bin Niu;Xiao Su;Yanjuan Xu;E. L
2007年夏天，中国无锡发生了一场影响200万居民数天的自来水异味危机。挥发性硫化物包括甲基硫醇，二甲基硫醚，二甲基二硫醚，二甲基三硫醚是主要的气味污染物在太湖和自来水的危机。这些污染物来自于大量蓝藻水华的分解，而蓝藻水华是由非法工业排放和监管不力的家庭污染引发的。采用高锰酸钾氧化和粉末活性炭吸附相结合的方法，迅速开发出一种特殊的应急饮用水处理工艺。应急处理过程去除了自来水中的异味，并在几天内成功解决了危机。这一经验强调了这样一种建议，即与富营养化和工业及家庭废水排放相关的压力组合可以将水生系统推向临界点，其后果远比系统单独受到每种压力时严重。
An odorous tap water crisis that affected two million residents for several days occurred in Wuxi, China in the summer of 2007. Volatile sulfide chemicals including methyl thiols, dimethyl sulfide, dimethyl disulfide, and dimethyl trisulfide were the dominant odorous contaminants in Lake Taihu and in tap water during the crisis. These contaminants originated from the decomposition of a massive cyanobacterial bloom that was triggered by illegal industrial discharges and inadequately regulated domestic pollution. A specific emergency drinking water treatment process was quickly developed using a combination of potassium permanganate oxidation and powdered activated carbon adsorption. The emergency treatment process removed the odor from the tap water and solved the crisis successfully in several days. This experience underscores the suggestion that a combination of stresses associated with eutrophication and industrial and domestic wastewater discharges can push an aquatic system to the tipping point with consequences far more severe than would occur if the system were subjected to each stress separately.