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Three-stage circulation aerobic reactor

A technology of aerobic reaction zone and circulating reflux system, which is applied in chemical instruments and methods, sustainable biological treatment, water/sludge/sewage treatment, etc., can solve the problems of high impact load resistance and low energy consumption, and achieve Strong ability to withstand impact load, high treatment efficiency, loose effect on incoming water PH value

Active Publication Date: 2013-10-02
山东许中华环保科技有限公司
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Problems solved by technology

[0003] The present invention aims at the deficiencies of the existing aerobic biological reaction technology, and provides a kind of anti-shock load capacity, low energy consumption, which can be started by flocculent sludge, and can quickly generate aerobic granular sludge during operation, which can effectively A three-stage circulating aerobic reactor that solves ammonia nitrogen and can reduce sludge

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  • Three-stage circulation aerobic reactor

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Embodiment Construction

[0011] As shown in the drawings, the three-cycle aerobic reactor of the present invention mainly includes a columnar pool body 16, the pool body 16 adopts a steel structure, and the entire structure is columnar, which is a multi-region and multi-functional combination. The tank body 16 is provided with a conical sludge expansion zone 11, aerobic reaction zone 8, primary gas-solid-liquid separation zone 5, anoxic reaction zone 7, secondary gas-solid-liquid separation zone 6 and precipitation filtration from bottom to top. Layer 3. The conical sludge expansion zone 2 is a conical cover, and the conical cover is connected with the air lift pipe 2 . A water outlet weir 20 is arranged above the sedimentation filter layer 3 , and a water outlet pipe 21 is arranged on the water outlet weir 20 .

[0012] The top of the pool body 16 is provided with a gas-liquid separation tank 1. The gas-liquid separation tank 1 is connected with a gas-lifting pipe 2 and a lower return pipe 17. The g...

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Abstract

The invention discloses a three-stage circulation aerobic reactor, which comprises a pond body, wherein the inside of the pond body is partitioned into a conical sewage expansion area, an aerobic reaction area, an anaerobic reaction area and a sediment filtering layer from bottom to top in sequence; the upper part of the aerobic reaction area is provided with a primary gas-solid-liquid separation area; the upper part of the anaerobic reaction area is provided with a secondary gas-solid-liquid separation area; three-phase separators are respectively arranged in the primary gas-solid-liquid separation area and the secondary gas-solid-liquid separation area; a water outlet weir is arranged above the sediment filtering layer; a water outlet pipe is arranged on the water outlet weir; the top of the pond body is provided with a double-stage circular reflowing system; the double-stage circular reflowing system comprises an air-lift pipe, a gas-liquid separating tank and a lower layer reflowing pipe; an upper layer reflowing pipe is arranged between the secondary gas-liquid separation area and the sediment filtering layer; and the upper layer reflowing pipe is connected with an aeration air inlet pipe arranged above the pond body. The reactor is provided with a three-stage circular reflowing system, and has the characteristics of rapid start of flocculent sludge, high impact load resistance, low requirement on the PH value of inflow water, high particle sludge increasing speed, low energy consumption, high treating efficiency and stable water yielding quality.

Description

technical field [0001] The invention relates to an aerobic reactor used in the biochemical treatment stage in the treatment of municipal and industrial sewage, and belongs to the technical field of aerobic reactors. Background technique [0002] The various aerobic reaction technologies currently used at home and abroad are mainly activated sludge method, SBR, CASS, A / 0, A / A / O, A / A / A / O, etc. Generally, the depth of the pool is less than 6 meters. The COD volume load is usually less than 1kgCOD.m3.d, and flocculent sludge is used during startup and operation. The above technology covers a large area, requires a large investment, has a long construction period and complicated operation and management, and is difficult to apply to sewage with high-concentration water quality and poor biodegradability. SUMMARY OF THE INVENTION [0003] Aiming at the shortcomings of the existing aerobic biological reaction technology, the invention provides a kind of high impact load resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 许中华
Owner 山东许中华环保科技有限公司
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