Here is very simple, perfect ...

Published October 4, 2019 00:26 by Frank Choi, CEO at BBN World Company Limited

Here is very simple, perfect and cheapest solution to remove all heavy metals, 100% disinfection, H2S and odor removal, heavy chemicals... : http://www.bbnworld.net/water/awp_master.pdf
15m3/hr x 24 hours = 360 ton per day needs, AP12 .. US$250,000. approx
Frank. bbn@bbnworld.com.