Improved Orbal oxidation ditch

An Aubert oxidation ditch, an improved technology, applied in chemical instruments and methods, sustainable biological treatment, water/sludge/sewage treatment, etc., can solve problems such as small room for adjustment, sludge sedimentation, and limited oxidation ditch depth , to achieve the effect of reliable structure and increased water depth

Pending Publication Date: 2018-11-02
LANSHEN GRP CORP LTD
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AI Technical Summary

Problems solved by technology

Since the rotary disc aerator is for surface aeration, there are mainly the following disadvantages: to oxygenate and push the surface water body, generally the water depth is not more than 3.6m, which limits the depth of the oxidation ditch; if the water depth is relatively large, pools will be formed. Bottom sludge sedimentation phenomenon; water flow rate is constant, and there is little room for adjustment; sludge sedimentation phenomenon will occur in local areas at the bottom of the pool wall

Method used

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  • Improved Orbal oxidation ditch
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Embodiment Construction

[0023] The following description is merely exemplary in nature and not intended to limit the disclosure, application or use. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0024] Such as figure 1 and figure 2 As shown, an improved Aubert oxidation ditch of the embodiment of the present invention includes an anaerobic tank 1, anoxic tank 4 and aerobic tank 6 arranged sequentially from outside to inside. The outer wall of the anaerobic tank 1 is provided with a sewage inlet 5 and a return sludge outlet 2 . The oxidation ditch also includes an aerator 3 and an adjustable diversion device 7 . The aerator 3 is assembled on the straight road of each pond. The adjustable flow guide device 7 is located downstream of the aerator 3, and the adjustable flow guide device 7 is assembled on the straight path of each pond.

[0025] In the Auber oxidation ditch of above-mentioned embodiment, the...

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Abstract

The invention embodiment discloses an improved Orbal oxidation ditch. The improved Orbal oxidation ditch comprises an anaerobic tank, an anoxic tank, and an aerobic tank from the outside to the insidesuccessively; the external wall of the anaerobic tank is provided with a sewage inlet and a backflow sludge port; the improved Orbal oxidation ditch also comprises aeration machines and adjustable flow guide devices; the aeration machines are arranged in each tank, adjustable flow guide devices are arranged in each tank at the downstream of corresponding aeration machines. The improved Orbal oxidation ditch is capable of realizing appropriate increasing of water depth, adjusting flow speed, is high in dissolved oxygen efficiency, and is reliable in structure; and no deposition blind angle isformed.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an improved Aubert oxidation ditch. Background technique [0002] Auber oxidation ditch is composed of multiple concentric elliptical or circular ditches. Both the sewage and the return sludge enter the outermost ditch, and enter the next ditch sequentially while circulating continuously. It is equivalent to a series of fully mixed reaction tanks connected in series, and finally the mixed solution is discharged from the inner ditch to the secondary sedimentation tank. Aerators with different disc numbers and powers are installed in each ditch to aerate sewage and push flow. The horizontal aerator equipment rotates in the same direction as the water flow in the ditch, and is installed on the straight path of the oxidation ditch. Because the rotary disc aerator is for surface aeration, there are mainly the following disadvantages: to oxygenate and pus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCC02F3/1257Y02W10/10
Inventor 陈斌李善庭黄学军王震张华张允敬叶昕
Owner LANSHEN GRP CORP LTD
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