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A device for preventing scum crusting in anaerobic reactor

A scum and crust technology, applied in the field of anaerobic reactors, can solve the problems of complex device and energy consumption, and achieve the effects of improving stability, improving safety and reducing operating costs.

Active Publication Date: 2022-06-07
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the prior art, the object of the present invention is to provide a device that is easy to operate, does not consume external energy, does not destroy the original anaerobic system water flow conditions, and has a good treatment effect to prevent anaerobic reactor scum from encrusting. , which uses the biogas generated in the anaerobic reactor to provide kinetic energy for the screw blades to prevent sludge crusting, and aims to solve the technical problems of complex devices for preventing scum crusting in the prior art anaerobic reactors and consumes a lot of energy.

Method used

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  • A device for preventing scum crusting in anaerobic reactor
  • A device for preventing scum crusting in anaerobic reactor

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Embodiment Construction

[0030] In order to make the object of the present invention, the technical solution and advantages more clearly understood, the following in conjunction with the accompanying drawings and embodiments, the present invention will be further elaborated in detail. It should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to qualify the present invention.

[0031] In a specific embodiment of the present invention, provided such as Figure 1A device shown to prevent scum crusting of anaerobic reactor, comprising an inlet zone 1 disposed at the bottom, a first three-phase separation zone 2 disposed in the middle and a second tertiary phase separation zone 3 at the top; Thereinto:

[0032] The inlet area 1 includes an inlet pipe 11, a water distributor 12 connected to the inlet pipe 11; The inlet area 1 is also provided with anaerobic sludge. The water distributor 12 includes several water distribution pipes...

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Abstract

The invention belongs to the field of anaerobic reactors, and more particularly relates to a device for preventing scum incrustation in anaerobic reactors. It includes the water inlet area set at the bottom, the first three-phase separation area set in the middle and the second three-phase separation area at the top; the first three-phase separation area includes several conical gas collection hoods and each conical The gas riser connected to the top of the gas collection hood; the first three-phase separation zone also includes a stirring component arranged above the upper nozzle of the gas riser and a fixed shaft for fixing the stirring component; the second three-phase separation zone includes a central Gathering gas outlet area and the surrounding water outlet area; the present invention guides the anaerobic generated gas by arranging a conical gas collection hood, a gas riser and a stirring part on the upper part of the gas riser in the anaerobic reactor, and utilizes the gas The impulsive force stirs the scum on the liquid surface, prevents it from crusting, improves the overall treatment effect of the anaerobic reactor, and ensures the long-term stable operation of the reactor.

Description

Technical field [0001] The present invention belongs to the field of anaerobic reactors, more particularly, relates to a device to prevent scum crusts of anaerobic reactors. Background [0002] Many industrial wastewaters contain scum and grease, such as aquaculture wastewater, landfill leachate and food processing wastewater. When treating such high-SS wastewater with anaerobic reactors, delamination is often prone to occur in fermentation systems. Less dense grease and high-fiber particles float in the upper part, and due to the small number of microorganisms in the upper part, these scum are not degraded effectively in time, thus remaining at the liquid level; At the same time, due to the small fluctuation of the liquid level, microorganisms attach to the scum are easy to form a biofilm, bonding more scum, and forming a scum layer. Over time, the scum layer gradually thickens, reducing the volume of the reaction zone of the anaerobic system, while the overly thick scum layer w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28
CPCC02F3/2866C02F3/2873C02F1/006C02F2303/14C02F2203/006Y02E50/30
Inventor 康建雄唐倩姜薇
Owner HUAZHONG UNIV OF SCI & TECH
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