Up-flow type micro-aerobic biological treatment system and method for degrading guar gum production wastewater

By adopting an upflow microoxygen biological treatment system in the treatment system for guar gum production wastewater, a microoxygen environment is created and propionate metabolism is promoted, and the problem of cumulative inhibition of propionate in traditional anaerobic digestion processes is solved, achieving efficient removal of organic pollutants and improving treatment efficiency.

CN119707104APending Publication Date: 2025-03-28WUXI UNIV +1
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202411699259.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The high COD concentration industrial wastewater generated during the guar gum production process has the accumulation of propionic acid in traditional anaerobic digestion processes to inhibit microbial activity, resulting in low degradation efficiency and low methane production.

Method used

The upflow microoxygen biological treatment system is adopted to create a microoxygen environment by setting up a sludge layer and a microoxygen dissolution column in the microoxygen digestion reactor, introducing electron acceptors, improving the energy metabolism level of microorganisms, promoting propionic acid metabolism, and relieving propionic acid inhibition.

Benefits of technology

It realizes efficient removal of organic pollutants in high-concentration guar gum production wastewater, improves the upper limit of the organic load of the system, shortens the treatment time, and enhances the stability and efficiency of the anaerobic digestion process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119707104A_ABST
    Figure CN119707104A_ABST
Patent Text Reader

Abstract

The invention relates to an up-flow micro-aerobic biological treatment system and method for guar gum production wastewater, and aims to solve the problems that in a traditional wastewater anaerobic digestion process, 1, 2-propylene glycol is converted into propionic acid, and the propionic acid is accumulated to inhibit anaerobic biochemical reaction, so that the microbial activity is inhibited, and the treatment effect is poor. The invention aims to solve the problems of low anaerobic degradation efficiency, low methane yield, long anaerobic digestion retention time and the like in the prior art, and provides the up-flow type micro-aerobic biological treatment method for degrading the guar gum production wastewater. By creating a micro-aerobic environment of anaerobic microorganisms and introducing an electron acceptor, the energy metabolism level of the microorganisms is improved, propionic acid metabolism is promoted, propionic acid inhibition is relieved, and efficient removal of organic pollutants in the high-concentration guar gum production wastewater is achieved.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Micro-aerobic EGSB (expanded granular sludge bed) and SBR-MBBR (sequencing batch reactor-moving bed biofilm reactor) combined treatment device and coupling process for traditional Chinese medicine residue wastewater

    CN114604964A

  • Device and method for enhancing treatment of membrane-making wastewater by ascending spiral-flow type circulating micro-aerobic hydrolytic acidification

    CN115448533A

  • Anaerobic membrane bioreactor and anaerobic fermentation method

    CN118084192A