In comprehensive management of Xiaoanxi Small Watershed, Hechuan City organically combines soil and water loss management with building living filter zones, water quality protection of stream and ecological sightseeing and tourism based on the concepts of giving a first priority to ecology and conducting scientific prevention and management.

Numerical simulations of moisture migration within packings of waste-gas biofilter;

Study on effect of H_2S biodegradation with different packing media in biofilter;

The function establishment of biofilter in recirculating commercial fish culture system;

Biological filtration,an important process step for the production of microbially safe and aesthetically pleasing drinking water,has attracted increased attention within the water industry.

Character of the treating micro-polluted source water with GAC-sand biofiltration.;

Biofiltration and Odor Treatment Technique in Solid Wastes Composting;

Effect of initial moisture content of packing material on the biofiltration of gaseous ethyl acetate;

There are several treatment methods such as biofilter,suspended skimmer protein,and hydroponic vegetables channel.

The volatile organic compounds in gas were removed continuously by the biofilter packed with compost-lava.

The process and the principle and development of the biofilter, biotrickling filter and bioscubber which were three major types of bio-treatment of volatile organic compounds were summarized.