__ is a process to convert wastewater into an effluent that can be either returned to the water cycle or get reused.

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Solution

Wastewater treatment is a process to convert wastewater - which is water no longer needed or suitable for its most recent use - into an effluent that can be either returned to the water cycle with minimal environmental issues or reused. During this process the toxic compounds in waste water are neutralised, the particulate and non-soluble impurities are also removed.

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