onsidering the overall situation of the water producing system, a mathematical model of the optimum chemicals-feeding quantity and its solution for water treatment plants have been put forward.

In order to solve the problems of low efficiency of flocculation tank in the water treatment plant and high chemicals dosage,the through hole velocity of the flocculation tank was adjusted,and the reasonable velocity gradient was set.

Combining with the water treatment plant building design in Suzhou new area,the author discusses characteristics and development trend of modern industrial building design,points out that in the industrial building design the architects should play the culture characteristics of regionality fully,play and establish unique enterprise image,so as to create new type of modern industrial building.

Influential factors of freeze-thaw conditioning of sludge from water purification plant;

Analysis on Caofeidian water purification project water purification plant design technology characteristic

The New Zhuangyuan Waterworks in Wenzhou has a design capacity of 30×104 m3/d,it is the biggest waterworks with complete process in Wenzhou.