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徐州市通过建造南望净水厂提升入湖河流的水质,进而保护云龙湖的水质。南望净水厂采用“高锰酸钾预氧化+管道混合+机械絮凝+气浮+生物陶粒石英砂过滤+紫外消毒”的工艺,从玉带河上游取水,处理后排入下游。相比于进水,净水厂对TP、COD_(Mn)和浊度分别削减了61.5%、32.9%和60%,TN含量基本没有变化,而氨氮的浓度有所升高。从近年来云龙湖的水质指标监测结果看,南望水厂的建设运行对云龙湖水质提升发挥了积极的作用。
Xuzhou City, south through the construction of water purification plant to enhance the quality of water into the lake, thus protecting the water quality of Yunlong Lake. South Wang water purification plant using “pre-oxidation of potassium permanganate + pipe mixing + mechanical flocculation + air flotation + biological ceramsite quartz sand filter + UV disinfection,” the process of water from the upper reaches of Jade River, after treatment into the downstream. Compared with influent water, TP, COD Mn and turbidity were reduced by 61.5%, 32.9% and 60%, respectively, with little change in TN content and a slight increase in ammonia nitrogen concentration. From the monitoring results of Yunlong Lake’s water quality indicators in recent years, the construction and operation of Nanwang Waterworks has played an active role in improving the water quality of Yunlong Lake.