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Why do we prefer to call secondary wastewater treatment a biological treatment?
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Biological treatment employs a variety of microorganisms, encompassing both aerobic and anaerobic species, to undertake the secondary processing of sewage. The metabolic capabilities of these minute life forms effectively break down the residual organic matter. Consequently, the term "biological treatment" is quite apt, as it describes the significant role that microbial activity plays in purifying our water resources, thereby contributing to a sustainable environment. Therefore, secondary wastewater treatment is a biological treatment as it contains both aerobic and anaerobic microbes.
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