Marine sewage treatment integrated device on basis of biological moving beds

Abstract

The invention relates to a marine sewage treatment integrated device on the basis of biological moving beds, which comprises a grating, a regulating basin, two stages of biological moving beds, a sedimentation tank, a backwashing water tank, an external membrane module, a reagent bucket and an ultraviolet disinfector. Sewage sequentially enters the regulating basin, the two stages of biological moving beds and the sedimentation through the grating. Supernatant fluid can be disinfected by ultraviolet rays and be directly discharged and can also be disinfected to be reused as recycled water after entering the membrane module. The external membrane module is connected with the backwashing water tank and can be used for effectively preventing a membrane from being blocked. The ultraviolet disinfector not only can be arranged behind the sedimentation tank, but also can be arranged behind the membrane module so as to meet different drainage requirements. The membrane module is kept working normally by regular backwashing and medicine washing. Due to the adoption of the marine sewage treatment integrated device on the basis of biological moving beds, the biodegrability of organic matter is effectively strengthened, effluent can directly reach the standard to be discharged after passing through the sedimentation tank, and the high efficiency degradation on marine domestic wastewater is realized. The marine sewage treatment integrated device has simple and reasonable structure and good working performance. The defect of short service life of the membrane module is overcome. Compared with a like reactor, the marine sewage treatment integrated device has obviously improved sewage treatment capability.

Description

technical field [0001] The invention relates to environmental protection equipment, in particular to marine environmental protection equipment. Background technique [0002] With the unprecedented development of the shipping industry and ocean development, the environmental pollution of the ocean is becoming more and more serious, and human beings are paying more and more attention to the protection of the ocean. The problem of ship domestic sewage pollution brought by the ocean has also aroused great concern of human beings. Ship domestic sewage contains a large number of bacteria, parasites and even viruses and high concentrations of eutrophication substances. These untreated domestic sewage is discharged into the water environment without treatment, which will infect aquatic organisms and humans, endangering organisms and human health In addition, after the nutrient salt enters the water environment, when its content reaches 0.01mg / L, it can cause excessive growth and re...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems existing in the prior art, the object of the present invention is to provide an integrated device for marine sewage treatment based on a biological moving bed, which can not only meet the discharge index requirements of the latest international anti-pollution convention, but also meet the requirements of reclaimed water Reuse standards to alleviate the shortage of fresh water resources on board

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