अपशिष्ट जल (wastewater meaning and definition in Hindi).Wastewater: Water that has been used and contains unwanted materials from homes, businesses, and industries; a mixture of water and dissolved or suspended substances.
अपशिष्ट जल (wastewater meaning and definition in Hindi).Wastewater: Water that has been used and contains unwanted materials from homes, businesses, and industries; a mixture of water and dissolved or suspended substances.
