The destroy of water treatment buildings by the alkalescent waste water;

According to current application status of unbonded prestressed technology in water treatment building projects, authors state key construction points of unbonded prestressed technology, and analyze features and application scopes of different structural styles.

In this paper, the sewage-treating building in Guangdong Medical College is chosen as the research sample of typology of sustainable building to analyze the possibility of using tangible architectural language to express the intangible architectural meaning, especially the maintenance of cultural continuity when achieving a contemporary tectonic expression.

The characteristics of sewerage system in mountainous cities were introduced,and the design problems such as pipe laying modes, gradient and flow velocity,selection of pipe material and drop structure were discussed.

This article described the effects of low temperature on organic matter removal,nitrification/denitrification,phosphorus removal and activated sludge settlement in sewage biological treatments system.