The Treatment Scheme of Remained Water and Analysis of Monitoring Results for Environmental Dredging Project
Type:
Presented during:
WODCON XIX: "Dredging makes the World a better place" - 2010, Beijing, China
Authors:
Fan Wenxue, Zhang Yi, Zhang Shijian, Chu Weiguo, Zhang Cheng
Abstract: In the ecological desilting project in Zhushanhu of Taihu Lake, according to the situation, adding flocculant is the method adopted to treat the remained water around the discharge area for the first time, which is a method that aims to effectively control the water quality. In the experimental production, it is proved to be effective and worth promotion after improvem6ent. This paper gives an analysis on the overall improvement effect of the flocculant and water quality according to the design of the remained water treatment equipment adopted in the project and the on-operation approach of the remained water treatment. The conclusion is made from three aspects:the relationship between density of flocculant and the production quantity of flocculent precipitate or flocculating time; the relation between the quantity of flocculant and the value of suspended matters in the remained water as well as the water quality index; the direct relation between the final quantity of the flocculant and the project quantity of the desilting work.
Keywords: Remained water treating technology, Quantity of flocculant PAC add,SS, Project quantity, Environmental dredging project