Device and method for improving salt impact resistance of anaerobic ammonia oxidation particle system based on quorum sensing effect

An anaerobic ammonia oxidation and quorum sensing technology, applied in anaerobic digestion treatment, chemical instruments and methods, biological treatment adjustment methods, etc., can solve the problems of particle disintegration and the reduction of the activity of Anammox bacteria, so as to promote the activity and maintain the integrity and subsidence, the effect of saving construction costs

Pending Publication Date: 2022-02-18
BEIJING UNIV OF TECH
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  • Description
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Problems solved by technology

However, the application of anaerobic ammonium oxidation granular sludge process to treat saline wastewater still faces outstanding problems such as particle disintegration and decreased activity of Anammox bacteria.

Method used

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  • Device and method for improving salt impact resistance of anaerobic ammonia oxidation particle system based on quorum sensing effect

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Embodiment Construction

[0034] The present invention will now be further described in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments.

[0035] Such as figure 1 As shown, the device includes: water distribution tank 1, improved UASB-MBR reactor 4, vertical MBR hollow fiber membrane 5, AHLs signal molecule storage bottle 15, water circulation water tank 19, WTW water quality analyzer 24 and PLC control device 25.

[0036] Wherein the water distribution tank is connected to the water inlet of the improved UASB-MBR reactor 4 through the pipeline provided with the water inlet pump 2; the improved UASB-MBR reactor 4 is provided with a vertical MBR hollow fiber membrane 5, and the vertical MBR hollow fiber membrane 5 is connected to the The pipeline provided with the produced water pump 6 is connected, and the upper part and the bottom are respectively provided with the return port A7 and the return port B9, and the return po...

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Abstract

The invention discloses a device and a method for improving salt impact resistance of an anaerobic ammonia oxidation particle system based on quorum sensing, and belongs to the field of salt-containing wastewater treatment. The device comprises a water distribution tank, an improved UASB-MBR reactor, a vertical MBR hollow fiber membrane, an AHLs signal molecule storage bottle, a water area circulating water tank, a WTW water quality analyzer and a PLC control device. The method comprises the following steps: operating the device, starting the anaerobic ammonia oxidation particle system, impacting the anaerobic ammonia oxidation particle system by salinity, adding AHLs signal molecules 3OC6-HSL and C12-HSL to improve salt impact resistance, and adding 3OC6-HSL to promote recovery after salt impact resistance. According to the method, anaerobic ammonium oxidation bacteria are efficiently intercepted through the membrane bioreactor, the AHLs signal molecules are added, intercellular exchange is carried out through a quorum sensing mechanism, the salt impact resistance of an anaerobic ammonium oxidation particle system is improved, and recovery after salt impact resistance is promoted.

Description

technical field [0001] The invention relates to the field of biological treatment of salty sewage, and relates to a device and a method for improving the anti-salt impact of an anaerobic ammonia oxidation granular system based on quorum sensing and using AHLs signal molecules as additives. Background technique [0002] With the improvement of people's quality of life, due to industrial production (such as: food processing industry (including meat canning factory, pickle factory, dairy product factory, fish processing factory, etc., the salinity is about 15-150g / L), tanning Production wastewater from factories (salinity about 15-50g / L) and petroleum industry (extraction water and refining process wastewater, etc., salinity about 3-120g / L) and coastal areas to seawater (such as: cities produced by seawater flushing toilets) The use of sewage (salinity about 5g / L) has caused the salt content of many wastewaters to increase year by year. If the saline wastewater is discharged i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F3/28C02F3/30
CPCC02F3/2846C02F3/307C02F3/006C02F2209/005C02F2209/02C02F2301/04C02F2301/043C02F2209/06C02F2209/22
Inventor 李军高鹏张晶张凯张昕唐鹏
Owner BEIJING UNIV OF TECH
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