METHOD OF REMOVING ANIONIC SURFACTANTS FROM WASTE WATER

摘要

FIELD: chemistry.SUBSTANCE: waste water is treated with a titanium-aluminium coagulant. The obtained gravitational sediment of the formed suspension is separated from the purified water. The source of the titanium-aluminium coagulant used is waste water from the step of washing isoprene rubber with water from a catalyst based on titanium and aluminium compounds with weight ratio Ti/Al of not less than 0.3. The coagulant dose in terms of titanium and aluminium ions is not less than 50 mg/l of the treated water, and the mixture of waste water and the coagulant is held at pH 4.5-9.0 and temperature of 30-45°C.EFFECT: method provides an effective, simple and cheap technique of purifying waste water from synthetic anionic surfactants to a quality which enables to deliver said water for biological treatment.2 ex