Use of chemical dispersants in the enumeration of bacteria in activated sludge.

Union Carbide Witco Chemical Aerosol 22 Aerosol A-102 Aerosol 18 Aerosol OS Cyanamer P-35 Ethofat 242/25 Ethofat C/15 Ethomid HT/60 Ethomeen 18/60 Merpol DA Zelec DX Duponol ST Merpol F Alkanol S Flakes Duponol WA Dry Duponol WA Paste Duponol WAQ Duponol ME Dry FC-134 FC-170 FC-172 LSD-2 LSD-6 Dequest 2000 Dequest 2006 EMA Grade 11 EMA Grade 61 ID-2721 Lomar PW Nopcosant L Tamol SN Tamol 731-25% Tamol 850 Tergitol Anionic 7 Emcol 5130 Emcol CS-1361 Emcol 4300 Tetrasodium salt of sulfosuccinic acid Disodium salt of the half ester of sulfosuccinic acid Disodium N-octadecyl-sulfosuccinamate Sodium isopropylnaphthalene sulfonate Low-molecular-weight hydrolyzed polyacrylamide Polyoxyethylene (15) glycol talloil ester, n.s. Polyoxyethylene (5) glycol acid ester, n.s. Polyoxyethylene (50) hydrogenated tallow amide, n.s. Polyoxyethylene (50) octadecyl amine, c.s. Nitrogen-containing ethylene oxide condensate, n.s. Polymeric quaternary ammonium salt, c.s. Fatty alcohol sulfate, amine salt, a.s. Hydrocarbon sulfonate, a.s. Alkylaryl sulfonate, a.s. Fatty alcohol sulfate, sodium salt, a.s. Fatty alcohol sulfate, sodium salt, a.s. Fatty alcohol sulfate, sodium salt, a.s. Fatty alcohol sulfate, sodium salt, a.s. Cationic fluorochemical surfactant Nonionic fluorochemical surfactant Amphoteric fluorochemical surfactant Organophosphorus compound Organophosphorus compound Strong phosphorus-containing acid Sodium salt of a phosphorus-containing acid Ethylene-maleic anhydride copolymer Ethylene-maleic anhydride copolymer Long-chain organophosphorus compound Condensed sodium naphthalene sulfonate, a.s. Sulfonated naphthalene condensate, a.s. Sodium salt of a condensed aryl sulfonic acid Sodium salt of maleic anhydride and diisobutylene Sodium salt of a polymeric carboxylic acid Sodium heptadecyl sulfate Fatty alkanolamide, n.s. Complex sodium organic phosphate ester-salt, a.s. Alkyl sulfosuccinate-sodium salt, a.s.