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A sedimentation device and sewage treatment system for preventing anaerobic fermentation of sludge

A sludge anaerobic fermentation and sedimentation device technology, which is applied in the sewage treatment system and the field of sedimentation devices to prevent sludge anaerobic fermentation, to achieve the effects of reducing the impact of influent flow velocity, balancing the influent flow velocity, and avoiding turbulent flow

Active Publication Date: 2021-08-31
北京华宇辉煌生态环保科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] One of the objectives of the present invention is to propose a sedimentation device and sewage treatment system for preventing anaerobic fermentation of sludge, which solves the technical problem of anaerobic metabolism due to sludge deposition in the prior art

Method used

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  • A sedimentation device and sewage treatment system for preventing anaerobic fermentation of sludge
  • A sedimentation device and sewage treatment system for preventing anaerobic fermentation of sludge
  • A sedimentation device and sewage treatment system for preventing anaerobic fermentation of sludge

Examples

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Embodiment 1

[0036] The present embodiment is attached in conjunction with the specification Figure 1 ~ 3 Means for preventing sedimentation of the anaerobic fermentation of the present invention will be described in detail.

[0037] The present embodiment prevents precipitation of anaerobic fermentation apparatus comprises a housing 1, positioned within the housing 1 and the aerobic tank 2 located inside the aeration tank 2 of the sedimentation tank 3, such as Figure 1 ~ 3 Indicated. Preferably, the bottom wall surface of the sedimentation tank 3 is a curved surface structure, and the size of the bottom end of the precipitation tank 3 from a bottom end remote from the aeration tank 2 to near the bottom of the aerobic tank 2 gradually decreases, as figure 2 3 or FIG. More preferably, the bottom wall of the sedimentation tank 3 is smoothly curved structure. More preferably, the bottom of the settling tank 3 is tapered structure or a glass-like structure, such as figure 2 3 or FIG. Preferably, t...

Embodiment 2

[0058] This embodiment is a process aspect according to any one pair of anaerobic fermentation using the embodiment to prevent the precipitation of sewage treatment apparatus will be described in detail.

[0059] Using an embodiment of any one of aspect 1 to prevent the anaerobic fermentation of sewage treatment apparatus precipitation process involves the steps of:

[0060] S1: aerobic tank into the water to be treated 2, the aerobic tank 2 occurs degradation of organic matter, nitrification and phosphorus absorption, while supplying oxygen by aeration tank 2 aeration aeration tube 19 and fitting 20.

[0061] S2: In the aerobic degradation of organic matter occur tank 2, water to be treated after the absorption of phosphorus into the nitration reaction and the inlet passage 9, to be treated sewage water inlet passage 9 by the trapezoidal member 10 and the porous water plate 11 3 into the interior of the sedimentation tank inlet zone 301;

[0062] Meanwhile, in the water to be tre...

Embodiment 3

[0068] Sewage treatment system according to the present invention will be described in detail in Example.

[0069] Sewage treatment system according to the present embodiment includes any aspect of embodiment a settling device 1 preventing anaerobic fermentation embodiment. Sewage treatment system according to the present embodiment, as compared to the prior art wastewater treatment system, the bottom of the sludge settling tank 3 would not cause deposition problems anaerobic fermentation, in addition to devices having a low power consumption, short return path back mud clogging the pipe 5 and water quality good advantage.

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Abstract

The invention discloses a sedimentation device and a sewage treatment system for preventing anaerobic fermentation of sludge, relates to the technical field of sewage treatment, and solves the problem of anaerobic metabolism due to sludge deposition in the prior art. The device includes a casing, an aerobic tank inside the casing and a sedimentation tank inside the aerobic tank. The bottom wall of the sedimentation tank is a curved structure, and the bottom of the sedimentation tank is from the end far away from the bottom of the aerobic tank to the bottom of the aerobic tank. The size of one end gradually decreases; the bottom of the sedimentation tank is located above the bottom of the aerobic tank, and an air lift device is installed below the sedimentation tank. Thickened sludge is returned to the aerobic tank. On the one hand, the device is conducive to the sliding of settled sludge in the sedimentation tank, which can avoid anaerobic fermentation caused by sludge deposition; on the other hand, it can quickly transfer and circulate the sludge at the bottom of the sedimentation tank, further avoiding anaerobic fermentation caused by sludge deposition fermentation.

Description

Technical field [0001] The present invention relates to the field of wastewater treatment technologies, particularly to a sedimentation device and the anaerobic fermentation of the sewage treatment system comprising means to prevent precipitation. Background technique [0002] Sedimentation in wastewater treatment systems are widely used, is a conventional solid-liquid separation process equipment for separating suspended solids in the sewage mixture was clarified, concentrated and simultaneously activated sludge reflux. Specifically, after the mixture was treated sewage purification sludge into the sedimentation tank, activated sludge mixed liquor suspended solids and other substances precipitated in the precipitation tank and separated from the water, sewage is discharged as treated water clarification system. After precipitation of the concentrated sludge from the bottom of the precipitation tank is discharged, most of them as seed sludge returned to the aeration tank, to ensu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12
CPCC02F3/1215C02F2203/006C02F2301/046C02F2303/14Y02W10/10
Inventor 张敬宇杨毅明董兴隆唐陆合谷秋磊
Owner 北京华宇辉煌生态环保科技股份有限公司
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