Assembly MBR (membrane bioreactor) container type integrated equipment for treating sewage in villages and small towns

Abstract

The invention discloses assembly MBR (membrane bioreactor) container type integrated equipment for treating sewage in villages and small towns. The assembly MBR container type integrated equipment comprises MBR containers and SND (synchronous nitrification and denitrification) biochemical tanks and is in a similar 'train' design. The MBR containers which are MBR membrane tanks are used as 'locomotives', the SND biochemical tanks are used as a 'carriages', the quantities of the MBR containers and the SND biochemical tanks can be increased according to the treated sewage volumes, and the SND biochemical tanks and the MBR membrane tanks are serially connected with one another. The assembly MBR container type integrated equipment has the advantages that the sewage in the villages and the small towns is treated by the aid of synchronous nitrification and denitrification and MBR combined technologies, the assembly MBR container type integrated equipment is short in hydraulic retention time, and the hydraulic retention time generally ranges from 3 hours to 4 hours; the required assembly MBR container type integrated equipment is small and is small in occupied area; the assembly MBR container type integrated equipment is low in manufacturing cost, biochemical treatment processes mainly including synchronous nitrification and denitrification are adopted, and accordingly the assembly MBR container type integrated equipment is low in power consumption per ton sewage.

Description

technical field [0001] The invention relates to the field of sewage treatment in villages and towns, in particular to an assembleable MBR container-type integrated equipment for sewage treatment in villages and towns. Background technique [0002] At present, in the field of sewage treatment in villages and towns, the use of integrated equipment is gradually becoming popular, especially the MBR integrated equipment has become the current It is a hot spot in the research and development of sewage treatment equipment in villages and towns, and has been continuously applied. The existing MBR integrated sewage treatment equipment mainly adopts A / O-MBR process, A 2 / O-MBR process, etc. [0003] A / O-MBR process: A hydrolytic acidification tank is added to the front end of the aerobic tank in the traditional MBR process system. The main purpose is to carry out effective denitrification first, and the mixed liquid at the end of the aerobic tank and the sludge in the membrane tank f...

AI Technical Summary

Problems solved by technology

[0006] 1. High production cost, high power consumption and high operating cost

[0007] The main factors leading to the above problems are: improper process selection, long hydraulic retention time; multiple equipment configurations; improper membrane selection; production cannot be standardized

[0008] 2. The level of equipment manufacturing is low, the production efficiency is low during mass production, and the processing capacity of a single unit is low

At present, the single MBR equipment with the largest processing capacity on the market is 500 tons per day, which cannot meet the current needs of my country's township sewage treatment

And most of them are series products, there are more than a dozen specifications from 10T / day to 500T / day. Due to the long production cycle of equipment, it is impossible to accurately predict the production plan of each series during mass production, and it is impossible to cope with the market demand. complex changes

[0010] 3. Transportation is difficult and transportation costs are high

[0011] The MBR integrated equipment on the market now generally has the problem of super height, which requires a special flatbed truck for transportation, resulting in increased transportation costs and increased transportation risks.

Part of the integrated equipment is too long, and cannot meet the transportation requirements in some areas (difficult traffic areas such as western mountainous areas and lake areas)

[0012] 4. Serialized products cannot meet the water volume change requirements and design requirements of township sewage treatment PPP projects

[0013] The general period of PPP projects is about 30 years, and the water volume increases linearly. However, it is difficult to match serialized products when the water volume increases linearly. If the matching is not done properly, investment and operating costs will increase.

In the design process, serialized products will also have the problem of how to match and match with the sewage lift pump

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