It is a green water treatment agent,with properties of -non-phosphor,non-nitrogen,non-pollution and fully biodegradation PASP is a water soluble polymer. It is a green water treatment agent, with properties of non-phosphor, non-nitrogen, non-pollution and fully biodegradation. PASP has good scale inhibition on calcium carbonate, calcium sulfate, barium sulfate, calcium phosphate, etc.. Its scale ...