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Efficient composite anaerobic reactor for treating high-concentration organic waste water

An anaerobic reactor and organic wastewater technology, applied in anaerobic digestion treatment, aerobic and anaerobic process treatment, waste fuel, etc., can solve the problems of easy plugging of fillers, reduction of processing load, artificial fixation, etc., and reduce investment Effects of cost, increased total biomass, and simplified design

Inactive Publication Date: 2007-03-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can solve the problem that the multi-biomass bioreactor that uses sand and fiber bundle soft packing to enrich anaerobic microorganisms has the problem of sludge silting and sand fluidization that require a large power cost, and the anaerobic reactor that uses fixed combined packing The method of treating wastewater in the oxygen tank has the problems of increased investment cost, difficulty in installing, maintaining and replacing fillers, and the need for three-phase separation equipment, and the method of using a non-closed anaerobic composite bed to treat organic wastewater needs to increase the volume of the reactor and reduce the processing load. , and the packing needs to be manually fixed, the operation is inconvenient, and the packing is easy to block

Method used

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  • Efficient composite anaerobic reactor for treating high-concentration organic waste water
  • Efficient composite anaerobic reactor for treating high-concentration organic waste water
  • Efficient composite anaerobic reactor for treating high-concentration organic waste water

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specific Embodiment approach 1

[0008] Specific embodiment 1: This embodiment is described in conjunction with Figures 1 to 3. This embodiment consists of a reaction vessel 1, a lightweight packed bed 2, an activated sludge bed 3, an aeration head 4, an air pump 5, an inlet pipe 6, and an outlet pipe 7 and water outlet weir 8; the top of the reaction vessel 1 is provided with a biogas outlet 9, the water inlet 10 at the bottom of the reaction vessel 1 communicates with the water inlet pipe 6, and the activated sludge bed 3, aeration head 4 and light The mass-packed bed 2 is arranged in the reaction vessel 1 sequentially in the order of pressing, middle and upper. The aeration head 4 is connected with the air pump 5 arranged outside the reaction vessel 1. One end of the outlet pipe 7 is connected to the upper side wall of the reaction vessel 1. The water outlet 11 on the top is connected, the water outlet weir 8 is arranged in the reaction vessel 1 and is installed close to the inner wall of the reaction vesse...

specific Embodiment approach 2

[0011] Specific embodiment two: this embodiment is described in conjunction with Fig. 1~Fig. 4, the distance S between two adjacent meshes 12 of the outlet weir 8 of this embodiment is 3~10cm, and the diameter of meshes 12 depends on lightweight packing Depending on the size of the light filler body 13, it is slightly smaller than the diameter D of the light filler body 13. While ensuring that the treated water flows out of the reaction vessel 1 smoothly, it can also prevent the light filler body 13 from flowing out of the reaction vessel 1 with the water flow. The weir 8 is made of plastic or stainless steel, which can be selected as required. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0012] Specific embodiment three: This embodiment is described in conjunction with Fig. 1~Fig. 4, and the difference between this embodiment and specific embodiment two is: the distance S between the adjacent two meshes 12 of the outlet weir 8 of this embodiment is 4cm. With such an arrangement, while ensuring that the treated water flows out of the reaction vessel 1 smoothly, it can also prevent the light packing body 13 from flowing out of the reaction vessel 1 with the water flow.

[0013] Specific Embodiment Four: This embodiment is described in conjunction with Fig. 1, Fig. 4 and Fig. 5, the shape of the lightweight filler body 13 of this embodiment is a circular tube shape, and the diameter D of the lightweight filler body 13 × height H × wall thickness δ 1-50mm×1-60mm×0.5mm respectively, the inner and outer surfaces of the lightweight filler body 13 can be designed in a zigzag shape to increase the area of ​​the biofilm. The light filler body 13 is installed in the rea...

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Abstract

The invention is a high efficiency combined anaerobic reactor for treating high concentration organic waste water, relating to a high concentration organic waste water treating device, where an activated sludge bed, an aeration head and a lightweight filling bed are arranged in a reaction vessel, the aeration head is connected with an air pump, the reaction vessel is equipped with biological air outlet, water outlet and water inlet, a water outlet weir is arranged at the water outlet in the reaction vessel, and the outer wall of the water outlet weir is equipped with meshes. And it has advantages of large biological quantity, high load, high treating efficiency, less investment, and easy to operate and maintain, able to be widely applied to treating various high concentration organic waste water.

Description

technical field [0001] The invention relates to high-concentration organic wastewater treatment equipment. Background technique [0002] Anaerobic technology has been applied to the treatment of high-concentration organic wastewater for a long time. At present, the commonly used organic wastewater treatment methods include activated sludge method and biofilm method. There is no mass transfer problem in the activated sludge process, but there is a problem that the sludge is easy to lose and it is difficult to maintain a high biomass. In order to obtain a high biomass, either sludge reflux or A longer hydraulic retention time or a lower hydraulic surface load will inevitably lead to an increase in the volume of the reactor, and the complicated structure of the gas-liquid-solid three-phase separation equipment will also increase the investment cost. For example, temperature changes and toxic substances are sensitive, which may easily cause unstable operation; the biofilm metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/28
CPCY02E50/30
Inventor 孙德智陈胜郑钟植
Owner HARBIN INST OF TECH
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