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Anaerobic biochemical reactor

A biochemical reactor and sub-chamber technology, applied in anaerobic digestion treatment and other directions, can solve the problems of large hydraulic elevation loss, high control requirements, sensitive sewage impact reaction, etc., and achieve high hydraulic loss, small reaction efficiency, and market application prospects. considerable effect

Inactive Publication Date: 2010-02-17
庞景宾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

UASB is generally a reaction tank or tank below 7m, with water distribution and gas-water separation facilities inside, suitable for places with low reaction load; EGSB and IC reactors are generally reaction tanks over 10m, with water distribution and gas-water separation facilities inside, suitable for reaction load Higher places; the above-mentioned reactors are all single-stage reactors, which are sensitive to the impact reaction of sewage, have high control requirements, and have shortcomings such as excessive hydraulic elevation loss.

Method used

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Examples

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Effect test

Embodiment 1

[0018] Such as figure 1 Shown as figure 1 It is a schematic diagram of the low-load application of the present invention.

[0019] It is suitable for low COD load such as 5kg / m3.d or less. Its operating conditions are like UASB, but the difference is: horizontal multi-stage series structure, no gas-water separator is required, a sedimentation tank can be set at the last stage to keep sludge.

[0020] The anaerobic biochemical reactor has a rectangular tank body 1, and the depth of the tank body 1 can be between 5-12m. The tank body 1 can be divided into A, B, C...Y and other multi-stage compartments. Each sub-chamber A, B, C, ... Y is composed of a downward flow passage 11 and an upward flow passage 21.

[0021] The multi-stage compartments are in series structure, and each stage has a specific reaction phase, namely biological and matrix, with high reaction efficiency; the series structure can increase the impact resistance and provide reaction control time;

[0022] When working, t...

Embodiment 2

[0025] Such as figure 2 As shown, Figure 2 is a schematic structural diagram of a high-load application in an embodiment of the present invention.

[0026] It is suitable for the situation where the COD load is higher than 5kg / m3.d. Its operating conditions are like IC. The difference is: each sub-chamber is a horizontal multi-stage series structure, no gas-water separator is required, and a sedimentation tank is set in the last sub-chamber to keep sludge.

[0027] The sewage enters the downward flow passage 11 of the first sub-chamber A from the water inlet pipe 2, and is distributed by the lower water distribution system 31 and then transferred to the upward flow passage 21, where it comes into contact with the suspended or expanded anaerobic sludge bed that has been formed. Oxygen biochemical reaction and biogas production. After the gas and liquid are naturally separated at the free liquid surface, the sewage flows into the next sub-chamber B, sub-chamber C..., and is discharg...

Embodiment 3

[0030] Such as image 3 As shown, image 3 It is a schematic diagram of the structure of the water outlet chamber in the anaerobic biochemical reactor of the present invention.

[0031] A sedimentation tank can be formed in the outlet chamber Y to precipitate suspended solids in the water, that is, biological sludge to ensure that the sludge is not lost. The sedimentation tank consists of a water outlet chamber Y and its inner water distribution area 1Y, a sedimentation area 2Y, and an outlet weir 3Y.

[0032] The structure is composed of a sedimentation tank 7 in the outlet chamber Y, an inlet distribution area 1Y in the lower part of the sedimentation tank 7, a sedimentation area 2Y in the middle, and an outlet weir 3Y in the upper part.

[0033] The sedimentation zone 2Y can be equipped with fillers such as inclined plates, etc., and the method is the same as the current general regulations.

[0034] Sewage enters the inlet water distribution area 1Y from the front stage, passes ...

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Abstract

The invention relates to the technical field of waste water treatment, particularly to an anaerobic biochemical reactor. The anaerobic biochemical reactor comprises divided chambers, a precipitation area, gas discharge pipes and sludge discharge pipes. A pool body is divided into the divided chambers A, B and C and a water discharge chamber Y by baffle plates, wherein the divided chambers A, B andC are connected with each other in series; the divided chambers A, B and C are divided into downward flow channels and upward flow channels by baffle plates; the lower parts inside the divided chambers are respectively provided with water distribution systems; one side of the pool body is provided with a water inlet pipe; the tops of the divided chambers are respectively provided with the gas discharge pipes; and the bottoms of the divided chambers are respectively provided with the sludge discharge pipes. The anaerobic biochemical reactor is a multi-stage reactor with a specific reaction phase in each stage and has the advantages of high reaction efficiency, strong applicability, reduced height of the reactor in horizontal series connection, low water level, high water power, less loss,improved capacity utilization rate in siamesed series connection, reduced land occupation, obvious effect on waste water treatment and considerable market application prospect. In addition, because the divided chambers are in a series connection structure, the impact resistance capability can be improved, and the reaction control time can be provided.

Description

Technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an anaerobic biochemical reactor. Background technique [0002] Anaerobic biochemical reactor is a biological treatment process equipment for sewage treatment. The reactors currently used usually include "upflow anaerobic biochemical reactor" (UASB), "expanded granular sludge bed reactor" (EGSB), "internal circulation anaerobic reactor" (IC) and "two-phase Anaerobic reactor" and so on. UASB is generally a reaction tank or tank below 7m, with water distribution and gas-water separation facilities, suitable for places with low reaction load; EGSB and IC reactors are generally reaction tanks above 10m, with water distribution and gas-water separation facilities inside to adapt to the reaction load Higher places; the above-mentioned reactors are all single-stage reactors, which are sensitive to sewage shock reaction, high control requirements and excessive hydraulic elevation l...

Claims

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Application Information

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IPC IPC(8): C02F3/28
Inventor 庞景宾
Owner 庞景宾
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