[entropy12]

Best FERTILIZER!

[goldstategop]

In some parts of the world, euphemistically named “night soil” is used as fertilizer.

[blackdog]

Sewage waste has been dewetted, refined and sterilized as dry granules, and packaged for sale as the #1 fertilizer used on golf courses and lawns everywhere, at a profit I may add, since the 1950's. The cleaned water is safe for any discharge use.

The city doing this is Milwaukee, and they sell Milorganite for $25 a 25# bag.

Burning sewage sludge is a bad idea. It has a high concentration of metals which make the ash hazardous waste.