Hydrated Lime/slack lime for industry waste water treatment No of Employees: 100-200 People. COA,SGS,MSDS,COA. ... , lime powder, ash Calcium Powder1. Features 1). Lower cost for water treatment 2). Widely range of application 3). Aid to coagulate well2 ... , circuit board, pickling, printing & dyeing and paper making industries waste water treatment.2). Used to remove phosphate,most of the heavy metal ...