... for all the major sectors are: Urban Sewage Treatment, Paper, Food Processing, Petrochemical, Metallurgical Processing, ... water, coal washing waste water clarifier.(4)It Can be used for dyeing wastewater, leather wastewater, oily wastewater treatment ... standards.(5)For the tap water in the river water treatment plant flocculant oilfield water treatment chemicals/high Molecular Weight polyacrylamide