TY - JOUR AU - Mahdavian Ahagh, S Elaheh AU - Ostovar, Fariba TI - Coagulant recovery from waterworks sludge by acid digestion method JO - Journal of Environmental Research and Technology VL - 3 IS - 4 SP - 31 EP - 39 PY - 2018 DO - 10.29252/.3.4.31 ER -