Device for purifying water in ship based on supergravity and membrane technique

Abstract

The invention discloses a device for purifying water in a ship based on a supergravity and membrane technique. The device comprises a supergravity device, a membrane unit and a sterilizing device, wherein water in the ship is primarily filtered through a filtering screen and then enters into a wastewater collecting cabinet; the wastewater in the wastewater collecting cabinet enters into the supergravity device and is purified; the purified water is fed into the membrane unit through a high-pressure pump, and then is disinfected by the activated carbon and the sterilizing device and then enters into a heat exchanger; after heat exchange, water enters into an incubator, is sterilized by an ultraviolet sterilization device and then becomes water reaching the standard. The reclaimed water according to the invention is filtered by the filtering screen and then is conveyed into a rotating bed which rotates at high speed, so that the macromolecule organics and fine particle impurities are separated from water under the effect of supergravity; the purified reclaimed water is fed into a membrane bioreactor device, the membrane unit is utilized to deeply treat the reclaimed water and the reclaimed water reaching the standard is lastly acquired; the device disclosed by the invention is especially suitable for vibrating and shaking ship moving platforms, has a simple structure, is high in purifying efficiency, has a purifying effect and is high in purity degree of the drained water.

Description

technical field [0001] The invention relates to a marine water purification device based on supergravity and membrane technology, and belongs to the field of marine vessels. Background technique [0002] With the improvement of per capita water consumption standards for ship crew and the increasing discharge of ship sewage and waste water, the contradictions with marine environmental protection and ship water-building capabilities have become increasingly prominent. Under the premise of meeting the reasonable water demand of ships and crews, how to comprehensively utilize water resources and reduce sewage discharge is a challenge for the auxiliary support system of ships. At present, the discharge-type treatment methods of domestic sewage from ships mainly include biological treatment methods, physical-chemical treatment methods, electrochemical treatment methods, and evaporation treatment methods. [0003] The structure of the biological treatment device is simple, the pur...

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