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Trickling Filters

Trickling Filters

Trickling filters are either rectangular or circular in shape and about 2 m deep. They are filled either with coarse, crushed rock or large anth­racite coal or blast furnace slag or broken bricks or graded...
Biological Treatment

Biological Treatment

Biological treatment process is essentially an aerobic biochemical oxidation’ or aeration. In this process,sewage water is filtered through specially designed sprinkling filters so that aerobic...
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