On the basis of essential nonlinear characteristics in municipal wastewater biology treatment process,control strategy of fuzzy self-revised method based on neutral network is adopted and some different degree of membership functions which will influence on control error are compared in order to improve control prevision.

Progress on microbial screening and culturing in wastewater biotreatment;

It is significant that study on enzymatic activities in wastewater biotreatment system contributes to going deep into reaction mechanism and improving removal efficiency.

During wastewater biotreatment,complex communities of microorganisms utilize both intracellular and extracellular enzymes to hydrolyze and ultimately mineralize organic pollutants,while the enzymatic activity reflects the activity of microorganisms.

Bioaugmentation technology and its application in biological wastewater treatment;

Use of 16S rDNA sequencing for quickly determining target bacteria in biological wastewater treatment system;

Microbial mass is a kind of biofilm or suspended activated sludge and is prototypes of highly stratified microbial communities, which are able to simultaneously perform numerous processes relevant for biological wastewater treatment.

The consumption of oxygen is the most significant biological response in wastewater biological treatment,and the OUR(Oxygen Uptake Rate) of microorganism can be obtained by respirometry.

For recent decades, especially in China, the main objective for wastewater biological treatment by conventional technology was only to remove organic materials containing carbon compounds and suspended solids, less attentions were paid to removal of other nutritious substances such as nitrogen, phosphorus.