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An electron transport chain (ETC) is a series of complexes that transfer electrons from electron donors to electron acceptors via redox (both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer of protons (H⁺ ions) across a membrane. This creates an electrochemical proton gradient that drives the synthesis of adenosine triphosphate (ATP), a molecule that stores energy chemically in the form of highly strained bonds. The molecules of the chain include peptides, enzymes (which are proteins or protein complexes), and others. The final acceptor of electrons in the electron transport chain during aerobic respiration is molecular oxygen although a variety of acceptors other than oxygen such as sulfate exist in anaerobic respiration.
Integrated catalytic biofilm composite and wastewater denitrification treatment method
PendingCN122144898ABioreactor/fermenter combinationsBiological substance pretreatmentsElectron transferAntibiotic drug
The application relates to the technical field of wastewater treatment, in particular to an integrated catalytic biofilm composite and a wastewater denitrification treatment method, which are prepared by the following method: a photocatalytic carrier is immersed in a heterotrophic nitrification and aerobic denitrification bacteria liquid, adsorption is carried out at 25 DEG C to 30 DEG C for 6 hours to 12 hours, and a bacteria-carrier composite is obtained; then the bacteria-carrier composite is immersed in a crosslinking liquid containing sodium alginate and calcium chloride to carry out crosslinking, and a gel-embedded integrated catalytic biofilm composite is formed; the volume ratio of the bacteria-carrier composite to the crosslinking liquid is 1:5-10; under the driving of visible light, photo-generated electrons are efficiently transferred to the bacteria electron transfer chain, the denitrification enzyme activity is significantly enhanced, and the material surface defect sites selectively degrade antibiotics. The application realizes efficient simultaneous denitrification and antibiotic removal under low-carbon source conditions, has strong system stability and low energy consumption, and is suitable for aquaculture, industrial and urban wastewater treatment.
Owner:SHAOYANG UNIV +1