Hi Hassan,   For the ...

Hi Hassan,

For the sludge, you can easily use a digestor to produce biogas and use it for heating of for electricity. If you wish to use again the treated water, it depends to application : 

- for agricultural purposes, you don't need to achieve high treatmeny levels. 

- for storage (in ground for example), you have to treat with a higher degree. Have a look at California's solutions. They face the problem for a long time now.