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The principal objective of wastewater treatment is generally to allow human and industrial effluents to be disposed of without danger to human health or unacceptable damage to the natural environment.

Conventional wastewater treatment consists of a combination of physical, chemical, and biological processes and operations to remove solids, organic matter and, sometimes, nutrients from wastewater. General terms used to describe different degrees of treatment, in order of increasing treatment level, are preliminary, primary, secondary, and tertiary and/or advanced wastewater treatment.

So here we have, St Lawrence High School and Junior college students of Grade 7, enlightening us through Project based learning on Waste water management and highlighting crucial aspects involved in it while answering important questions on purpose of sewage management, waste water treatment, effects of improper sewage management and septic tank.

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