Integrated sewage treatment device with high efficiency and low consumption and treatment method

A high-efficiency technology for sewage treatment, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of low nitrogen and phosphorus removal efficiency, long sewage treatment process, and troublesome management and operation and other problems, to achieve the effects of good and stable effluent quality, low suspended solids and turbidity, and low operating costs

Active Publication Date: 2013-07-17
BEIJING UNIV OF TECH
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Problems solved by technology

[0007] Aiming at the problems of long sewage treatment process, large sludge output, low nitrogen and phosphorus removal efficiency, high treatment cost and troublesome management and operation existing in the existing sewage treatment process, the present invention designs a sewage collection pretreatment, synchronous nitrification and denitrification Nitrogen removal (referred to as SND effect), in-situ sludge reduction, chemical-assisted phosphorus removal, filter cloth biofilm filtration and other integrated sewage treatment processes. This process has the advantages of small sludge output, good nitrogen and phosphorus removal effects, simple treatment process, Low operating cost, low investment, convenient management, etc.

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  • Integrated sewage treatment device with high efficiency and low consumption and treatment method

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[0034] Such as figure 1 , figure 2 As shown, the process invention is composed of a pretreatment pool 1, a multiple redox environment coupled biological reaction pool (2, 3, 4, 5, 6, 7), and a filter cloth filter dynamic membrane biological reaction pool 8, which are sequentially connected together. The parts are connected into a whole. The pretreatment tank consists of a grille 10 and a grit chamber 18, and the two parts are integrated. A grit bucket is arranged at the lower part of the grit chamber, and the mud and sand are discharged through the mud and sand drainage pipe 11. The multi-redox environment coupled biological reaction pool includes anoxic zone 2, aerobic zone 3, anoxic zone 4, aerobic zone 6, anoxic zone 6, and aerobic zone 7, and the volume ratio of anoxic zone to aerobic zone is in order 1: 1.5: 1: 2.0: 1: 2.5, and the filler filling ratios in the anoxic zone and aeration zone are 40% and 90% respectively. Composite glazed ball porous microorganism carrie...

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Abstract

The invention relates to an integrated sewage treatment device with high efficiency and low consumption and a treatment method, and belongs to the field of sewage treatment. The integrated sewage treatment device comprises a pretreatment unit, a multi-oxidation-deoxidation environment coupling biological reaction pond unit and a deep treatment unit sequentially connected. The multi-oxidation-deoxidation environment coupling biological reaction pond unit adopts a three-stage anoxia-aerobiotic alternating reaction pond filled with a circular composite glass ball porous microbial carrier. The deep treatment unit comprises a filter cloth dynamic film biological reaction pond and first and second dynamic films. Sewage is treated through the devices sequentially. The device provided by the invention cannot only remove carbon containing organic matters, but also has good nitrogen and phosphorus removal capacity.

Description

technical field [0001] The invention relates to a high-efficiency and low-consumption sewage treatment integrated device and treatment method of sewage pretreatment + biological treatment + advanced treatment, belonging to the field of sewage treatment. Background technique [0002] At present, with the rapid development of the economy, the construction of small towns and new residential areas around cities in my country is developing rapidly. With the increase of population in these areas, the total amount of domestic sewage is also increasing, resulting in the surrounding areas of cities, small towns, rural areas and remote areas. The serious pollution of natural water bodies, especially in recent years, the increasing amount of sewage has been directly discharged into water bodies without treatment, which has aggravated the serious pollution of the water environment. The main reason is that the sewage cannot be treated in time due to the scattered pollution sources. For th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 李军王永磊刘伟岩陈光辉王昌稳
Owner BEIJING UNIV OF TECH
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