Treatment of low temperature and low turbidity raw water with compact flofilter of dissolved air flotation and GAC deep bed filtration by direct filtration;

Test for direct filtration of raw water with a fiber bundle filter medium under microflocculation;

Applied study on the micro-flocculation direct filtration process in reuse of industrial wastewater;

Present research on nano functional air filter materials;

Progress in research of novel functional air filter material

Based on the study of tested and analyzed the antibacterial and regulating temperature,analyzed the mechanism of air conditioning filter,designed the process of experimention,according to the Standard of ANSI/AHAM AC-1-1988,Constructed the laboratory,and Experimented the filter efficiency of Multifunctional air conditionning filters.

The performance requirements and various trial manufacture techniques of primary efficiency, middle efficiency and high efficiency filtration materials for air filtration in car spraying-paint room were presented.

Presents three commonly used engineering control methods, including ventilation, air filtration and ultraviolet germicidul irradiation (UVGI), discusses the relationship between ventilation rate and infection rate based on the Wells-Riley equation, gives the filtration efficiency of some air filters for bacteria, and analyses the limitation of UVGI for airstream.

The air filtration technology were reviewed on four parts separately:air filtration material,air filter,air filtration theory and its application.