Water PurificationPhysicochemical ProcessesWater SupplyDrinking WaterDisinfectionFiltrationWater MicrobiologyWaterMolecular WeightChromatography, AffinityElectrophoresis, Polyacrylamide GelChromatography, Ion ExchangeChromatography, GelChromatographySubstrate SpecificityMolecular Sequence DataKineticsAmino Acid SequenceHydrogen-Ion ConcentrationChromatography, DEAE-CelluloseFresh WaterAmino AcidsBody WaterIsoelectric PointEscherichia coliWater PollutionIsoelectric FocusingChromatography, High Pressure LiquidCrystallizationCloning, MolecularTemperature