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Elliptical low-speed anaerobic reactor

An anaerobic reactor and elliptical technology, applied in the field of anaerobic reactors, can solve the problems of many failure points, difficult operation and management, complex structure, etc., and achieve the effects of good effect, easy automatic monitoring and high processing efficiency.

Inactive Publication Date: 2013-04-03
SHANDONG ACAD OF ENVIRONMENTAL SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at the shortcomings of existing anaerobic reactors such as complex structure, many fault points, and difficult operation and management, and provides an elliptical low-speed anaerobic reaction with simple structure, uniform stirring, high mass transfer efficiency, low energy consumption, and stable water output device

Method used

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Embodiment Construction

[0013] Such as figure 1 and figure 2 As shown, the elliptical low-speed anaerobic reactor of the present invention mainly includes a pool body 1, the pool body 1 adopts a steel concrete structure, and the entire structure is oval, and the pool body 1 is divided into a lower main reaction zone 3 and an upper gas-solid-liquid separation Zone 4 is two areas, the height ratio of the two is 2:1-4:1. According to the length of the cell body 1, a plurality of horizontally arranged gas-solid-liquid separation zones 4 are arranged in the upper part of the cell body 1 . The side wall of the pool body 1 is provided with a water inlet pipe 6 extending into the pool body. A mud discharge pipe 8 is also provided at the bottom of the pool body 1, and a control valve is provided on the mud discharge pipe 9 to form a mud discharge system. When the mud is discharged, the control valve is opened to discharge the sludge at the bottom of the pool by self-pressure.

[0014] Multiple groups of s...

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Abstract

The invention provides an elliptical low-speed anaerobic reactor which comprises a cell body, wherein the cell body is in an elliptical structure; the lower part in the cell body is provided with a main reaction area; the upper part in the cell body is provided with at least one gas-solid-liquid separation area; all the gas-solid-liquid separations are horizontally arranged at intervals; and the height ratio of the main reaction area to the gas-solid-liquid separation is 2:1-4:1; the side wall of the cell body is provided with a water inlet pipe extending into the cell body; the bottom of the cell body is provided with a sludge discharge pipe; the inside of the main reaction area is provided with at least one stirring device; all the stirring devices are horizontally arranged; a three-phase separator and a precipitation area are arranged in each gas-solid-liquid separation device; the three-phase separator is connected with a methane discharge pipe; the precipitation area is arranged on the periphery of the three-phase separator; a filler is arranged in the precipitation area; the upper part of the precipitation area is provided with an overflow weir; and the overflow weir is connected with a water discharge pipe. The invention has the advantages of simple structure, low requirements for influent water distribution, no need of back flush, high treatment efficiency and stable effluent water quality, and is simple to operate and convenient to run.

Description

technical field [0001] The invention relates to an anaerobic reactor used in the biochemical treatment stage in the industrial sewage treatment process, and belongs to the technical field of anaerobic reactors. Background technique [0002] The various anaerobic reactors used at this stage can be classified into high, medium and low speed reactors. Anaerobic reactors with a height of less than 10 meters and an ascending flow rate between 0.5-1.0 m / h are classified as medium-speed anaerobic reactors. The COD volume load of medium-speed anaerobic reactors is usually less than 5kgCOD.m3.d, and the start-up and Flocculent sludge can be used during operation. The medium-speed reactor covers a moderate area, saves investment, and is easy to operate, but the disadvantage is that it cannot be used for high-concentration water quality and sewage with poor biochemical properties, and the anaerobic sludge in the system is easy to lose. The high-speed anaerobic reactor is represented ...

Claims

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Application Information

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IPC IPC(8): C02F3/28
Inventor 李刚许中华
Owner SHANDONG ACAD OF ENVIRONMENTAL SCI
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