THE TREATMENT SCHEME OF REMAINED WATER AND ANALYSIS OF MONITORING RESULTS FOR ENVIRONMENTAL DREDGING PROJECT: TAKING ENVIRONMENTAL DREDGING PROJECT ON ZHUSHAN AREA OF TAIHU LAKE AS AN EXAMPLE

摘要

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 fiocculant 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 fiocculant and the production quantity of flocculent precipitate or flocculating timethe relation between the quantity of fiocculant and the value of suspended matters in the remained water as well as the water quality indexthe direct relation between the final quantity of the fiocculant and the project quantity of the desilting work.