High-efficiency hollow grid shaped spherical suspending filling material

A suspension packing and grid-like technology, which is applied in the field of high-efficiency hollow grid-shaped spherical suspension packing, can solve the problems of partial surface area waste of packing, less biofilm amount, and insufficient film thickness, etc., and achieve fast film formation and large biofilm amount , the effect of improving the utilization rate

Inactive Publication Date: 2009-02-18
DONGHUA UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high-efficiency hollow grid-shaped spherical suspension filler, which can solve the problems of slow film formation, less biofilm, insufficient film thickness and partial surface area of ​​the existing suspension filler without changing the cost of the original filler. Disadvantages such as waste

Method used

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  • High-efficiency hollow grid shaped spherical suspending filling material

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Comparison scheme
Effect test

Embodiment 1

[0014] like figure 1 As shown, a high-efficiency hollow grid-shaped spherical suspension filler is composed of hollow grid spherical plastic 1 and soft rough fiber filaments 2. The hollow grid spherical plastic 1 is a hollow grid-shaped spherical plastic. The nature of the soft rough fiber filament 2 is a soft rough fiber filament, and the soft rough fiber filament 2 is wound on the hollow mesh spherical plastic 1 .

Embodiment 2

[0016] This filler overcomes the shortcomings of other rigid fillers that are difficult to hang film, less film amount and small thickness, and a large number of biofilms can be attached to the rough fiber filaments on the surface of the hollow grid-shaped spherical plastic, which increases the volume load of the reactor. The filler is turned up and down together with the water flow and gas in the reactor, and the sewage and gas can fully contact with the sludge attached to the rough fiber filaments, which can increase the removal of organic matter in the sewage due to the presence of a large number of microorganisms while increasing the oxygen benefit rate efficiency.

Embodiment 3

[0018] During the transfer of oxygen from the surface of the filler to the interior, the microorganisms on the hollow mesh-shaped spherical inner fiber filaments are at a disadvantage in the competition for oxygen. Oxygen is first absorbed and utilized by the microorganisms on the outer fiber filaments, so the inner fiber filaments The microorganisms on the surface gradually become anaerobic due to the reduction of oxygen. Moreover, because the thickness of the biofilm attached to the soft rough fiber by this filler is relatively large, the utilization of oxygen by microorganisms in the vertical direction is also in a gradient shape. oxygen state. The function of short-term nitrification and denitrification can be realized under the condition that the anaerobic and aerobic sludge exist at the same time, and the NH 3 The removal of -N has a very good effect.

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Abstract

The invention relates to a highly effective hollow cancellate spherical suspended filler, which comprises hollow grid spherical plastic (1) and flexible rough weaving fibers (2). The hollow grid spherical plastic (1) is hollow cancellate spherical plastic. The character of the flexible rough weaving fibers (2) is flexible and rough fiber. The flexible rough weaving fibers (2) are enlaced on the hollow grid spherical plastic (1). The filler has simple structure, does not waste most area of the fibers because the fibers are filled in the hollow grid spherical plastic, can enlarge organic membrane amount and the contact area with the sewage at the same time that the cost of the whole suspended filler is not changed, has quick suspended filler membrane forming speed and a great deal of organic membrane, improves the removing efficiency of the system, and has very good removing effect in particular to NH3<-N>.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a high-efficiency hollow grid-shaped spherical suspension filler. Background technique [0002] At present, the amount of sewage discharge in our country is increasing, and the water pollution is becoming more and more serious. It is an imminent problem to meet the discharge standards of sewage after treatment. The traditional sewage treatment methods mainly include physical, chemical, biological and physicochemical, biochemical and other combined treatment methods. On the premise of meeting the standard discharge, the state advocates using biological treatment methods to treat wastewater to meet the standard discharge, and avoiding chemical treatment as much as possible to reduce environmental pollution caused by secondary pollutants produced when chemicals are added in the chemical treatment process. [0003] The most important biological treatment methods are activated sludge ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 吴川汪永辉刘振鸿薛罡李小琴李春燕高品吕涛吴火焰邱恒钭晨黄阳张燕波赵静周建冬
Owner DONGHUA UNIV
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