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Wastewater is characterized by their physical, chemical and biological characteristics. Physical Characteristics: Color, Odor, Dissolved oxygen (D.O), Insoluble substances (suspended solids, settleable solids), Corrosive properties, Radioactivity, Temperature, Foamability etc. Chemical characteristics: Chemical oxygen demand (C.O.D), pH, Acidity or Alkalinity, Hardness, Total carbon, Total dissolved solids, chlorine demand, trace elements & ions, Surfactants, phenols, hydrocarbons, oils […]