Rural single-family, multi-family, whole village, established town, villa, farmhouse, scenic spot, field camp and other domestic sewage treatment. The technology originated from Europe, using AO biological contact oxidation sewage treatment process, the internal division into anoxic, aerobic, sedimentation and other functional areas, microorganisms attached to the fixed biological rope filler bed, under the action of the dynamics of air agitation, aeration and oxygenation, air lifting reflux, etc., a variety of genera of microorganisms grow and multiply, and various pollutants are removed by microbial digestion and absorption.
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