... board, pickling, printing & dyeing and paper making industries waste water treatment.2). Used to remove phosphate,most of the heavy ... Qingyuan Brand5. How to Use Wet dosing: Firstly, make it up to 5%-10% solution and continuously mechanical stir. Add to waste water after ... sewage; adjust the ph value to rough though its strong alkalinity. 6. Packing, Storage and TransportationPacked with 25 kgs woven ...