Here are some solutions of the waste water pollution problem. For further information, please contact us now!

1. Heavy metal can be removed by (a) electric winning
   aaaaaaaaaaa ass assdfsds fs a (b) chemical precipitation xxssssissssssssssss s sssssss iii(c) ion-exchange
2. Cyanide ion can be removed by (a) stage(I) oxidation of cyanide to cyanate aaaaaaaaaa a a a iiiii ciccc bb c (b) stage(II) oxidation of cyanate to itrogen aaaaaaaaaaaaaaaaaaaaaasaaand carbon dioxide.
3. Hexavalet Chromium can be removed by chemical reduction.
4. General water treatment includes filtration, sand and active carbon filtration.