Precipitant Including reagents as PAC, aluminum sulfate and ferric chloride, etc, having perfect turbidness removal effect, rapid gel forming speed, with large particles, easy to be filtered, which could reduce equipment and operation cost. Decolorant This reagent has perfect decolorizing effect to the wastewater from dyeing plant. Foam Inhibitor This foam inhibiting agent is widely suitable for cool、hot、acidic、basic water system. Oxidant Javelle、chlorinated lime、chloropyridine possess oxidizing and bacteria-killing ability. Polymeric Flocculant Anion polymeric flocculant is an acrylamide granule type polymeric substance, which has excellent performance of separating solid granule from liquid, which can be used as excellent wastewater flocculant, cation Polymeric flocculant is suitable for sludge dehydration. Resin remover After using cation exchange resin may gradually be iron element in original water enveloped on resin surface and then decrease softening treatment efficiency, this reagent will cause stripping of organic substance, gel in resin, and get cleaning and recovery effect. Biographical nutriennts Classified as nitrogen、phosphoric nutrients.