Black water and grey water treatment apparatus through modular film method

Abstract

The invention relates to a black water and grey water treatment apparatus through a modular film method. A purpose of the present invention is to solve the technical problems of substantial reduce of the product cost and the like. The technical scheme adopted by the apparatus comprises that: the apparatus is provided with a first module, a second module and a third module; the first module is provided with a first inlet and a first outlet; the second module is provided with a second inlet connected with the first outlet and a grey water inlet; the second module is further provided with a second outlet; the third module is provided with a third inlet connected with the second outlet and a third outlet; the organic matter concentrations of effluents from the first outlet of the first module, the second outlet of the second module and the third outlet of the third module are respectively maintained to preset values; the black water and grey water treatment apparatus is applicable for various categories of black water and grey water treatments in the ship engineering and the marine engineering.

Description

Technical field: [0001] The invention relates to a configuration of equipment for waste water or sewage treatment, in particular to a multi-stage treatment equipment for waste water or sewage. Background technique: [0002] Ships will produce a large amount of domestic sewage when sailing or mooring, including black water discharged from toilets, gray water discharged from kitchens or washing, and the discharge of these black and gray water will seriously pollute the water environment. Strict requirements for the treatment of black and gray water are put forward. In view of the above situation, various types of marine sewage treatment devices are installed on various ships, such as WCH and WCX devices, which are characterized by easy operation and small size suitable for marine use, but The device does not have the function of degrading and transforming organic matter, and its applicability is greatly limited. For this reason, the industry uses WCB and WCV type traditional b...

AI Technical Summary

Problems solved by technology

[0002] Ships will produce a large amount of domestic sewage when sailing or mooring, including black water discharged from toilets, gray water discharged from kitchens or washing, and the discharge of these black and gray water will seriously pollute the water environment. Strict requirements for the treatment of black and gray water are put forward. In view of the above situation, various types of marine sewage treatment devices are installed on various ships, such as WCH and WCX devices, which are characterized by easy operation and small size suitable for marine use, but The device does not have the function of degrading and transforming organic matter, and its applicability is greatly limited. For this reason, the industry uses WCB and WCV type traditional biochemical treatment devices, but their volume load is low and the treatment efficiency is not high, so it is difficult to popularize and use. In view of the above situation, The Chinese patent "Marine Sequencing Batch Type Membrane Black and Ash Water Treatment Device" Patent No. 200510027557.5 proposes an improved technical solution, which is characterized in that a multi-stage sequence batch cabinet, sedimentation cabinet, sludge tank, liquid level It is composed of a combination cabinet of membrane modules, a disinfection clean water cabinet, a fan, a suction pump, a discharge pump and a control box. During treatment, the sewage enters the batch batch cabinet, and the outlet of the batch cabinet is connected to the sedimentation cabinet, which is respectively connected to the sludge tank and liquid Position and membrane module combination cabinet, the water outlet of the combination cabinet is input into the disinfection clean water tank through the suction pump, the clean water tank is connected to the discharge pump to achieve standard discharge, and the blower air supply pipe is respectively connected to the sequence batch cabinet, the sedimentation cabinet and the membrane module combination cabinet. The device uses the optimized combination of sequencing batch biochemical method and membrane technology, which has high volume load and treatment efficiency, and makes the sewage resistant to the impact of organic load and hydraulic load, thereby reducing the size of the device and making it more suitable for marine use. The following problems have been found in practice: in different fields such as ship engineering and marine engineering, due to the different types and collection methods of sewage entering the sewage treatment device, the water quality and water volume of the sewage entering the sewage treatment device change out of proportion. The side conditions in the design change greatly. For example, the organic concentration (COD) of the black water collected by gravity is 500mg / l, while the COD of the black water collected by vacuum will be as high as 3500mg / l. The water quality will change greatly accordingly. Therefore, the above-mentioned technical scheme should provide different combination structures of sequential batch biochemical method and membrane method for different boundary conditions. The output, product design and manufacturing costs are high, the production cycle is long, and the economic benefits are poor, which is not conducive to the play of the advanced technology of the above-mentioned biochemical method and membrane method optimization combination, and is not conducive to the further improvement of related technologies

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