Sewage vacuum discharge and treatment system for marines

Abstract

The invention discloses a sewage vacuum discharge and treatment system for marines, belonging to the technical field of sewage treatment and discharge devices and comprising a sewage vacuum collection device and a sewage treatment device, wherein the sewage vacuum collection device is closely communicated with the sewage treatment device by a rotor pump assembly and a vacuum discharge pipeline; the sewage treatment is sequentially connected with a crushing pump for collecting and crushing large granular impurities, a grid for filtering suspended matters and impurities, a tank for collecting sewage, a fur collector for removing furs and small granular suspended matters, a bio-membrane reactor and a sterilizing device. The invention adopts a modularized design on the whole, combines flexibly according to the space of the marine body, is particularly suitable for the reconstruction and the improvement of the domestic sewage treatment device for marines, not only saves space and water, has compact arrangement, safety and sanitation as well as easy maintenance, but also decreases the influence of the swing of a marine body on the water quality and has high pollutant degradation efficiency and directly-reused discharged water.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment and discharge devices, in particular to a vacuum discharge and treatment system for marine sewage. Background technique [0002] Due to the long-term voyage of ships at sea, the sewage that has not been well treated cannot be directly discharged to the sea. The sewage treatment of ships has always been a difficult problem that is eager to be solved but has not been solved well. Due to the characteristics of the ship itself, it is impossible to configure an ordinary sewage treatment and discharge system on the ship, because this kind of system often has problems such as occupying a large amount of space, water consumption, odor overflow, easy to block, and difficult to maintain. The existing domestic sewage treatment system of ships mostly adopts biochemical method, or physical chemical method, or electrolysis method; traditional biochemical treatment uses aerobic microorganisms to degrade...

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Problems solved by technology

[0002] Due to the long-term voyage of the ship, the sewage that has not been well treated cannot be directly discharged to the sea. The sewage treatment of the ship has always been a difficult problem that is eager to be solved but has not been solved well.

Due to the characteristics of the ship itself, it is impossible to configure an ordinary sewage treatment and discharge system on the ship, because such systems often have problems such as occupying a large amount of space, water consumption, odor overflow, easy blockage, and difficult maintenance

The existing domestic sewage treatment system of ships mostly adopts biochemical method, or physical chemical method, or electrolysis method; traditional biochemical treatment uses aerobic microorganisms to degrade under the condition of sufficient oxygen, and then separates solid and liquid through sedimentation, and the purification effect is good. However, the volume of the device is large, it is difficult to arrange in the limited cabin, and the effluent water quality is easily affected by the swaying of the hull; the physical and chemical method is to add chemical agents to the sewage for circulation, crushing, precipitation, and disinfection treatment. The device is small in size and the process is simple, but The removal of organic matter is not complete, COD cannot reach the standard, and excessive disinfectant makes the residual chlorine in the effluent exceed the standard; the electrolysis method is to electrolyze the sewage mixed with seawater in an electrolytic cell, and the NaClO produced is directly used as an oxidant and disinfectant to degrade organic matter and Bacteria, the device is small, the treatment is fast, but the operation and maintenance are complicated, the operation cost is high, and the COD, residual chlorine and pH cannot reach the standard

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