On the basis of analysis of combined sewer systems operator s experiences, an method that minimization of CSO using fuzzy control theory is presented for a representative three-reservoir system, thi.

Pollutant characteristics and first flush effect of runoff in combined sewer system;

The remake of combined sewer system is an important key link of old city proper remake and water environmental protection in city.

,a thorough analysis of the present conditions of old drainage pipe-works which is a combined sewerage system spreading in three different districts located at the center of Zhuji City,was conducted and multi-measures for improving old drainage system was adopted.

In order to obtain the processes of hydrology and water quality of urban combined sewerage system (CSS) in highly urbanized region,the precipitation,discharge and pollutant concentration of four different intensity rainfall (light rain,moderate rain,heavy rain and storm) were measured from Jul.

A complete design strategy for runner system is proposed.

A complete design strategy for injection mold runner system is proposed in this paper.

Research on technology of SVG-based pipeline system

The result shows that the water hammer effect,which resulted from a sudden close up of a block valve downstream the check valve in discharge pipeline and create overpressure in pipeline system and cause its overloaded and fatigue should be considered which design and sellect the structure of the check valve.