With high watertightness, corrosion resistance, great pressure bearing, deep co-vering, and lower cost, wider range of diameters and higher rigidity for internal and external loads than non-metallic pipelines, PCCP is most suitable for great diameter pressure pipe such as municipal main sewer.

Study on application of two-stage bio-contact oxidation process in low-temperature municipal waste water work;

Test of advanced treatment of municipal wastewater by coagulation-ultrafiltration combined process;

Study on treating municipal wastewater by self-forming bio-dynamic membrane reactor;

Study on the pretreatment of municipal wastewater by UASB reactor at ambient temperature;

The application of reverse osmosis in the municipal sewage recycle to thermal power plants

The application of flat sheet MBR in treatment of municipal sewage is introduced,including basic process of MBR,tank volume calculation,filtration mechanism,energy saving measures,sludge age,membrane cleaning method and so on.

In this paper, the effect of heavy metals on the ability of phosphate accumulating bacteria purifying municipal sewage was studied by adding 4 kinds of solutions containing different contents of Cu~(2+), Zn~(2+), Cr~(6+), and Cd~(2+) to sewage.

This construction method can efficiently solve the construction technical problems of the deeper embedded municipal sewage pressure pipe,which can provide the reference for the construction of the municipal sewage pressure pipe.