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Shijiuyang Constructed Wetland (110hm2) is a drinking water source treatment wetland with primary structural units of ponds and plant-bed/ditch systems. The wetland can process about 250,000tonnes of source water in the Xincheng River every day and supplies raw water for Shijiuyang Drinking Water Plant. Daily data for 28months indicated that the major water quality indexes of source water had been...
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