According to the limited amount of water in cities,it is more important to take the strategies of increasing water to sus.

The process improvement of chemical-biological treatment of papermaking wastewater;

Study on catalytic oxidation treatment of papermaking wastewater through metal ion adsorption on chitin;

Preparation of mesoporous titanium oxide and the research of the treatment to papermaking wastewater;

The application of flyash in paper-making wastewater treatment;

Study on a new kind of phosphor nutrition applied to the biochemical system of paper-making wastewater treatment process;

Screening and identification of strain degrading lignin and its application in paper-making wastewater treatment;

Mesoporous TiO_2 membrane and its application in degradation of papermaking waste water;

Methods of testing the toxicity of papermaking waste water are summarized in this paper, including germiculture method and chromatogram analytical method, luminescent bacteria test (L B T), fish toxicity test method and potentiometric titration By using these methods, toxicity of papermaking waste water could be determined accurately and easil

This paper sets up reactive model of drgradation and deduces the degradative parameter epuation on dht basic of biodegradation on papermaking waste water by white rot fungi.

At the same time, the cationic starch can make the CODcr of white water receded from 549.