Ship sewage treatment device and method

Abstract

The invention discloses a ship sewage treatment device and method. The device comprises a frame, a pretreatment cylinder is fixedly arranged at the top of the frame, a motor is arranged at a top center position of the pretreatment cylinder, a water inlet pipe is arranged at one side of the motor, and a drug adding hopper is arranged at the other side of the motor. The water inlet pipe and the drugadding hopper both communicate with the pretreatment cylinder, the output shaft end of the motor is fixedly connected with a rotating shaft, and the middle part of the circumferential side of the rotating shaft is fixedly provided with agitating rods, and the bottom of the rotating shaft is provided with scrapers. A center portion of the bottom of the pretreatment cylinder is provided with a connecting pipe. The device of invention adds a drug into the pretreatment cylinder by using the drug adding hopper, and uses the motor to drive the stirring rods and the scrapers to agitate sewage with the added drug so as to precipitate some harmful substances in the sewage, then enables the sewage to be introduced into a pressure filter cylinder for pressure filtration, and at the same time, uses awater treatment mechanism to purify the filtered sewage to meet a drinking standard.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a ship sewage treatment device and method. Background technique [0002] Marine sewage treatment equipment is an auxiliary equipment for ships. The equipment undertakes the treatment of domestic sewage on board the ship to make it meet the discharge standard. [0003] The utility model patent of utility model application publication number CN 207203607 U discloses a kind of ship sewage treatment equipment. In this technical solution, the sewage passes through the filter cartridge, and the sediment accumulates at the bottom of the filter cartridge. When the sediment reaches a certain amount, it is time to squeeze out The pressure plate squeezes downwards, and further squeezes the sewage in the sediment, so that the sewage enters the drainage chamber through the filter screen, and the squeezed sediment is drained. At the same time, the downward squeezed sediment will squee...

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Problems solved by technology

[0003] The utility model patent of utility model application publication number CN 207203607 U discloses a kind of ship sewage treatment equipment. In this technical solution, the sewage passes through the filter cartridge, and the sediment accumulates at the bottom of the filter cartridge. When the sediment reaches a certain amount, it is time to squeeze out The pressure plate squeezes downwards, and further squeezes the sewage in the sediment, so that the sewage enters the drainage chamber through the filter screen, and the squeezed sediment is drained. At the same time, the downward squeezed sediment will squeeze out the baffle and enter Sewage room, so that the ship can store more sediment and discharge it on land, but this treatment method is limited to the treatment of filtrate, the water treatment is not complete, and the fresh water recycling rate is low

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