Wastewater treatment plants and anaerobic digestion 

What can the sludge be used for ?

Sludge is not the same thing as biosolids

I was feeling very unsure on what went on during anaerobic digestion. This helped that step CLICK

great presentation, thanks!

thank you very much for this. it was hard to find a good explanation. I learned a lot.

thank you very much for this

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