That living things contacts oxide law is to make use of the biomembrane being fixed on filling , adsorption foul water is hit by organic pollutants and the oxygen (violence gas) making use of machinery to supply , one kind of high-effect biochemistry carrying out an assimilation of the new and excretion of the old , making foul water so that can purify handles method. Broad apply to the domestic sewage , municipal sewage and hospital, process hides , slaughter, food chemical industry , industry such as beer and petrochemical industry have sewage treatment. Dress filling having bigger specific surface area , the model fosters on the filling within contacting oxide pool to perch the living things group that the various type state microorganism composes, is the characteristic having the living things filter chamber; Since biomembrane immersion is water, require the elephant activity sludge to follow gas like that sudden and violent providing oxygen , live therefore being an utensil concurrently

Equipment selects and uses the soft filling half bigger than superficial area , bundle of film is homogeneous , the packing, is not durable.