Biological sewage treatment equipment and process of internal recycle suspension padding

A technology of sewage biological treatment and suspended packing, which is applied in the direction of sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of affecting the BAF treatment effect, large backwash water consumption, and shortened backwash Cycle and other issues, to achieve the effect of improving effective utilization, low operating energy, and small footprint

Inactive Publication Date: 2010-09-22
北京建筑工程学院
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Problems solved by technology

However, the traditional BAF process has high requirements for pretreatment. Generally, high-efficiency sedimentation tanks, flocculation sedimentation tanks, or air flotation are used for pretreatment to ensure that the SS and BOD indicators of the subsequent BAF influent cannot be too high (general requirements SS≤ 60mg/L), otherwise it w...

Method used

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  • Biological sewage treatment equipment and process of internal recycle suspension padding
  • Biological sewage treatment equipment and process of internal recycle suspension padding

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Experimental program
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Embodiment Construction

[0034] The sewage biological treatment process of internal circulation suspended filler according to the present invention specifically includes:

[0035]First place the suspended packing in the reactor. The inner cavity of the reactor is composed of two left and right distributed and relatively independent spaces. The top and bottom of the two relatively independent spaces are respectively provided with connecting channels, and the suspended packing is respectively filled in in two relatively independent spaces. The height of the reactor may be 2-4m, and the ratio of height to width of the reactor may be between 8:1 and 15:1. Here, the height of the reactor was set at 3 m, and the height-to-width ratio of the reactor was 12:1.

[0036] The filling amount of the suspended filler is 60% of the total volume of the reactor, and the density of the suspended filler is 0.90-0.98g / cm 3 Between, particle size is 10mm, specific surface area is 400m 2 / m 3 . Of course, the filling ...

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Abstract

The invention discloses biological sewage treatment equipment and a process of internal recycle suspension padding, which utilize an aeration generator to enable the suspension padding and the sewage to circularly flow in a reactor, and simultaneously an aerobic reaction area and an anoxia reaction area are formed in the reactor, thereby improving the growth and degradation capability of a biological film on the suspension padding, and having large volume loading and high process efficiency; and by the circularly flow of the sewage and the padding in the aerobic reaction area and the anoxia reaction area, the device and the method degrade or convert the organic matters, nitrogen and the like in the sewage fully, thereby achieving the aim of quickly purifying water quality. The integral structure of the device develops towards space longitudinally, has small occupied area, and simple and convenient mounting, and can be widely applied to the retexture of the sewage.

Description

technical field [0001] The invention relates to the theory, method and technology of sewage treatment and recycling, in particular to a sewage biological treatment device and process for direct treatment of sewage with internal circulation suspended filler. Background technique [0002] (1) Necessity and feasibility of recycling sewage [0003] With the increase of population and the rapid development of economy, the serious shortage of water resources in my country has become an important restrictive factor for the development of national economy and the improvement of people's living standards. In order to alleviate the current situation of water shortage, in addition to opening up new water sources (such as South-to-North Water Diversion, seawater desalination, etc.) and emphasizing water conservation, it is also crucial to accelerate the process of sewage resource utilization and actively promote the reuse of reclaimed water. As early as 1987, the Beijing Municipal Gove...

Claims

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Application Information

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IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 仇付国郝晓地李永丽
Owner 北京建筑工程学院
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