अपशिष्ट जल का उपचार का अर्थ (treatment of wastewater meaning in Hindi)

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अपशिष्ट जल का उपचार का अर्थ (treatment of wastewater meaning in Hindi)

Wastewater treatment: Any of the mechanical or chemical processes used to modify the quality of wastewater in order to make it more compatible or acceptable to humans and the environment.

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India Water Portal - Hindi
hindi.indiawaterportal.org