polyaluminumchloride pharmaceutical wastewater Coagulation sludge treatment Municipal wastewater treatment water treatment chemicals oily wastewater coagulants WaterTreatmentChemicals PAM cationic smallexperiment PFS dosing method wastewater tre polymers coagulants chemicals sewage treatment FLOC High viscosity polyacrylamide NPAM Non-ionic polyacrylamide CPAM PAFC Polyaluminium Ferric Chloride PFS Polyaluminium Chloride Industrial grade polyaluminium chloride White Polyaluminium Chloride Sludge Dewatering Chemicals Sludge Dewatering flocculants polyacrylamide water treatment cationic polyacrylamide flocculant coagulant aid Oily wastewater polyaluminum manufacturers waste sewage treatment Water treatment chemicals coagulant Polymer watertreatment flocculant water treatment coagulant PAC PAM coagulants and flocculants flocculant chemical coagulant aid decoloring agent wastewater treatment ferrous sulfate polymers water treatment polymer flocculants polymer electrolyte polymer cationic polymer anionic pam polymer polydadmac polyamide powder polyelectrolyte powder poly electrolyte cationic polyelectrolyte anionic polyelectrolyte nonionic polyacrylamide anionic polyacrylamide anionic flocculant anionic coagulant cationic coagulant cationic flocculant cationic polyacrylamide polyacrylamide polymers polyacrylamide pam polyacrylamide pam flocculant pam coagulant pam chemical flocculant polyacrylamide cas 9003 05 8 polymer acrylamide pac coagulant pac flocculant powder pac pac water treatment pac polymer pac chemical Polyaluminum ferric chloride polyferric chloride polyferric sulfate polyferric sulphate pac manufacturer pac supplier poly alum chloride aluminum polychloride Cas 1327-41-9