An investigation on treatment of tannery wastewater by electrocoagulation
by
Apaydin O., Kurt U., Gonullu M.T.
Anaerobic digestion of olive mill wastewater
by
Blika P.S., Stamatelatou K., Kornaros M. and Lyberatos G.
Using wood and bone ash to remove metal ions from solutions
by
Chojnacka K. and Michalak I.