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Sequential Batch Biofiltration Granular Reactor and Its Technology

A biological filtration and sequential intermittent technology, which is applied in the direction of aerobic process treatment, sustainable biological treatment, biological water/sewage treatment, etc., can solve the problems of short drainage time, achieve high oxygen transfer rate, and low sludge residual output , the effect of low energy consumption

Active Publication Date: 2016-08-17
江苏环保产业技术研究院股份公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the drainage time of SBR intermittent drainage is short, and it is required not to stir the sedimentation sludge layer during drainage, so special drainage equipment is required, and there is no initial sedimentation, which is easy to generate scum

Method used

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  • Sequential Batch Biofiltration Granular Reactor and Its Technology
  • Sequential Batch Biofiltration Granular Reactor and Its Technology
  • Sequential Batch Biofiltration Granular Reactor and Its Technology

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Embodiment example

[0036] Using the new "two-chamber system" SBBGR as the main process, a small test was carried out in the laboratory. The composition of the test water is shown in Table 1. The test is divided into two periods, A and B. In period A, the particle biomass is produced, which lasts 199 days. Adjust the hydraulic load to ensure that the organic load rate is 0.2-0.4 (kg (COD) / (m 3(filter material). Day)) between. Once the volumes are generated, the trial enters Phase B, which will focus on assessing the effectiveness of the small-scale trial in dealing with the organic load variations that are characteristic of wastewater in tourist areas. In order to amplify this organic load change, the hydraulic retention time of the equipment is gradually reduced. Phase B is divided into four hour sections of B1, B2, B3 and B4, and the hydraulic retention times are 2.2d, 1.4d, 1.0d and 1.2d respectively. However, due to the strong changes in the sewage composition, the reduction of the hydrau...

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Abstract

The invention discloses a sequencing batch type biological filter particle reactor and a process thereof. The reactor comprises a biological filter tank (1) and an aeration tank (3), wherein the biological filter tank (1) is connected with the aeration tank (3) by a hydraulic pump (5) and a water pipe (2). A technological process comprises the following steps: pumping sewage into the aeration tank (3) and aerating; putting the sewage of the aeration tank (3) into the biological filter tank (1) for reaction through the water pipe (2); recycling the water of the biological filter tank (1) into the aeration tank (3) by the hydraulic pump (5); repeating the steps. As air supply is finished in an independent reactor and has no direct contact with biomass, frequent blocking of filter materials is prevented during air diffusion, and therefore higher oxygen transfer efficiency can be achieved.

Description

technical field [0001] The invention relates to sewage treatment technology, in particular to a sequence intermittent biological filter particle reactor and its technology. Background technique [0002] With the growth of economy and the improvement of environmental awareness, the sewage treatment in cities and towns has attracted the attention of the society and the country. In our country, environmental protection laws and regulations are becoming more and more perfect, and the construction speed of sewage treatment plants is accelerating. For tourist areas, the water quality is not only a matter of environmental pollution, but also affects the image of tourist areas. Therefore, the problem of sewage treatment is even more urgent. However, due to its large proportion of domestic sewage, good biochemical properties, relatively low concentration of pollutants in sewage, and obvious seasonal fluctuations in sewage treatment volume, tourist areas The design and operation of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02
CPCC02F3/02C02F3/104Y02W10/10
Inventor 李轶王晶臧怡文王晴牛丽华
Owner 江苏环保产业技术研究院股份公司
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