Why is it necessary to treat water before discharge? Share with your friends Share 0 Jahirul Mazumder answered this Please refer the link below: https://www.meritnation.com/ask-answer/question/whu-is-it-necessary-to-treat-the-waste-water/our-basic-needs/8889551 -2 View Full Answer Pratyush Pothal answered this GOOD AND NICE QUESTION -1
