Reaction column and grey water treatment method for treating ship grey water by combining coagulation and activated carbon adsorption

Abstract

The invention aims to provide a reaction column and a grey water treatment method for treating ship grey water by combining coagulation and activated carbon adsorption. The reaction column comprises apre-reaction area, a coagulation area, a filtering area, an adsorption area and a drainage area. Sewage enters the pre-reaction area through a water inlet pipe, then enters the coagulation area, enters the filtering area after coagulation and sedimentation, then enters the adsorption area to be adsorbed by activated carbon, and finally is filtered in the drainage area and discharged. The treatedwater body is transparent and has good physical sense, temperature and pH value have little influence on the treatment process, the application range is wide, and the method overcomes the defects of large occupied area caused by storage of a coagulant and requirement of static environment during coagulating sedimentation through combined use of the activated carbon and a shockproof base. The reaction column has a good and stable treatment effect on ship domestic sewage, and is simple in structure, durable in equipment, automatic in operation, good in effluent quality and very suitable for shipgrey water treatment.

Description

technical field [0001] The invention relates to a water treatment device and method, in particular to a ship gray water treatment device and method. Background technique [0002] Domestic sewage from ships includes black water and gray water. The current International Maritime Organization (IMO) convention stipulates that black water needs to be treated to meet the discharge standards, and there is no clear treatment requirement for gray water. Although there are no strict and clear treatment standards for conventional indicators such as BOD5, COD, and TSS for gray water, it is required to meet the standard treatment when it is mixed with black water. In recent years, there has been an increasing call for gray water to enter the main unit of the marine sewage treatment plant for treatment. Ship gray water not only has some similarities with ordinary urban domestic sewage, but also has obvious differences between ship domestic sewage and ordinary urban domestic sewage due t...

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Problems solved by technology

(3) When the ship is sailing, due to the influence of climate and ocean currents, it cannot operate stably like the water treatment equipment in the city, and the quality of the effluent water will also be affected

However, coagulant, as an external agent, needs to occupy space, and in the coagulation process, it needs to stand for a period of time after the flocculation is completed to realize the solid-liquid separation of the floc and the supernatant. Both stages require post-coagulation The gray water is relatively stable

This is difficult to achieve in a hull traveling on the sea

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