Sep 27, 2017 · In the second step, the anaerobic fermentation of water-soluble hydrolysis products occurs and a mixture of different organic acids (mainly acetate, propionate, and n-butyrate), alcohols, carbon dioxide (CO 2), and hydrogen (H 2) is produced. Not always the fermentation products are the direct result of a linear degradation way.
Jan 1, 2024 · Because complex organic components might be degraded, anaerobic fermentation (AF) is more suitable for FW treatment. Methane fermentation efficiency can be increased using FW substrate pretreatments in many ways, including mechanical, thermal, chemical, and biological pretreatments [79], [80]. By increasing the specific surface area, mechanical
May 1, 2024 · In addition, the anaerobic fermentation of kitchen waste slurry can generate high-concentration NH 3-N from protein (PN) degradation. A high C/N ratio is an important indicator used to assess the usability of VFAs fermentation liquid as carbon source for denitrification ( Tan et al., 2023 ), which means a high-quality VFAs bioproduct.
Fermentation is another anaerobic (non-oxygen-requiring) pathway for breaking down glucose, one that's performed by many types of organisms and cells. In fermentation, the only energy extraction pathway is glycolysis, with one or two extra reactions tacked on at the end. Fermentation and cellular respiration begin the same way, with glycolysis.
Sep 1, 2022 · To overcome the problem of common stirring dry AD and maintain the high-efficiency growth and metabolism of microorganisms in the system, a new reactor was designed to rotate itself instead of mechanical stirring.
Oct 1, 2022 · High-efficiency co-digestion of FW and mature leachate was achieved using an EGSB reactor. A high OLR up to 23.6 g COD/L/d and COD removal around 80% were obtained, giving a methane production of 5.87 ± 0.45 L/L/d. The COD-to-methane conversion rate was ranging from 74% to 87%.
Nov 1, 2022 · High treatment capacity for food waste (FW) is required due to the huge amount generated worldwide. Conversion of FW to volatile fatty acids (VFAs) via anaerobic fermentation is a promising technology; however, inhibition of VFAs production could easily occur at high loadings.
Sep 29, 2023 · The yeast Saccharomyces cerevisiae is the most widely used organism for industrial ethanol production, because of its rapid growth, high-efficiency in ethanol yield, and high tolerance to environmental stressors such as ethanol, low pH, and low oxygen.
Feb 1, 2023 · Owing to their good separability and high energy density, MCFAs are more easily recovered from fermentation liquor, and can be used as precursors for biofuels production to alleviate increasing energy demands, or for biochemicals synthesis such as pharmaceuticals, antimicrobial agents and food additives (Wu et al., 2019).
Jan 8, 2021 · Enhancing ethanol production from anaerobic fermentation of organic wastes via stimulating growth of ethanol-producing Fe(III)-reducing bacteria with magnetite.
Aug 21, 2023 · Polyaluminum chloride (PAC) is used widely and increasingly in wastewater treatment plants, resulting in its inevitably high production in sludge. Previous studies have indicated that the production of short-chain fatty acids (SCFAs) is inhibited by the existence of PAC in sludge anaerobic fermentation, so it is necessary to study how to promote sludge anaerobic fermentation under low
Sep 6, 2022 · It has been reported that high temperature is beneficial to anaerobic fermentation for hydrogen production, because high temperature can reduce the solubility of H 2 in the liquid phase (Feng et al., 2010), and thermophiles in fermenting microorganisms have a higher tolerance limit to high temperature. But high temperature fermentation requires
Sep 19, 2017 · Conventional acetone-butanol-ethanol (ABE) fermentation coupled with gas stripping is conducted under strict anaerobic conditions. In this work, a fed-batch ABE fermentation integrated with gas stripping (FAFIGS) system using a non-strict anaerobic butanol-producing symbiotic system, TSH06, was investigated for the efficient production of butanol. To save energy and keep a high gas-stripping
Jun 14, 2022 · After adding chlortetracycline into the anaerobic fermentation system of pig manure, the daily gas yield of the experimental group in the first 10 days was significantly lower than the control group . Feng et al. studied the anaerobic fermentation of pig manure with a few different kinds of antibiotics. It was found that only erythromycin was
Apr 10, 2018 · Fed-batch, continuous, and batch fermentation systems can be selected for high efficiency. Continuous and fed-batch systems can handle substrate restriction amid fermentation procedures. Higher efficiency also can be achieved by the immobilization of cells, which can be derived incrementally from the biomass collection in the bioreactor
