PURPOSE: A hospital wastewater treatment system which removes contaminants in hospital sewage or wastewater using ultra filtration membrane filter and bio filter is provided. CONSTITUTION: The system comprises a hospital wastewater treatment equipment(30), a domestic sewage treatment equipment(40), the wastewater treatment equipment of dental clinic(90) which treats unite chair wastewater(20), a mixing tank(70) which mixes wastewater from the treatment equipments, a compressor(80) which supplies air to the treatment equipments, a secondary treatment equipment(60) which treats wastewater from the mixing tank. Each equipment is composed of ultra filtration membrane filters(41,51,61,91) which remove adulteration and bacteria and bio filter which is composed of bio media.
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