The main characteristics of paper mill effluent are: deep color, high value of suspended solids, off o-dour, high concentration of nutrients that cause eutrophication of receiving waters, and high toxicity.

Features of general plan in design bidding for a power plant along the Yangtze River;

The article systematically analyses the organizational system,production management,quality control and so on in the Dragon River Shipyard in Ming Dynasty according to "The Record of The Dragon River Shipyard" and "The Record of The South Ships" From the analysis,we can concluded that the management level in Chinese Shipyard was quite high 500 or 600 years ago.

According to the raw water quality of the Huangpu River and the limited area for expansion site,the expansion project with treatment capacity of 20×104 m3/d in Linjiang WTP adopts Actiflo clarifier and FiltrafloTGV filtration process.