2023/9/15/ · The experimental results and model analysis showed that CaO 2 addition effectively reduced H 2 S yields in WAS anaerobic fermentation. The mechanism of how CaO 2 addition reduces H 2 S production was further unveiled in the following text. 3.2. Effect of CaO 2 addition on sulfur distribution and flow during WAS anaerobic fermentation
2022/9/10/ · Anaerobic fermentation is a frequently applied route for the WAS Moreover, the LDH release, which commonly indicates the breakage of the cell membrane and release of intracellular substances (Yu ... Insights into potassium permanganate reducing H2S generation from anaerobic fermentation of sludge. Chem. Eng. J., 430
2020/1/31/ · Fermentation kinetics (gas production after 24 h incubation, rate of fermentation) were reduced when either starch or cellulose were incubated in LNS compared to CTR inocula (Table 3).In general
2012/9/1/ · 1. Introduction. Energy crisis and global warming are considered to be two most serious problems worldwide [1].Biomass energy, as a renewable and sustainable form of energy, is becoming more important due to its environmentally-sound and energy-saving production [2].Development of a livestock industry is believed to be a key
2024/6/20/ · Membrane-bound oxygen reductases of the anaerobic sulfate-reducing Desulfovibrio vulgaris Hildenborough: roles in oxygen defence and electron link with periplasmic hydrogen oxidation. Microbiology 159 , 2663 – 2673 .
2023/2/1/ · The inoculum used for fermentation stage was taken from a semi-continuous mesophilic anaerobic fermenter using WAS as substrate, 170 mmol/L ethanol as ED, and 0.05 M 2-bromoethanesulfonate as methanogens inhibitor (Wu et al., 2021). The fermenter was maintained at 35°C, with a sludge retention time of 15 days. 2.2. WAS
To clarify these issues, a hydrogen fermenter was designed to reduce Cr (VI) at 55 °C with glucose as initial substrate. Results show that 100 mg/L Cr (VI) can be completely reduced (99.5%) to trivalent chromium (Cr (III) through chemical and biological reactions. Bio-reduction dominates Cr (VI) removal in a first-order exponential decay mode
2022/4/22/ · In the present study, placing electrodes in the anaerobic fermenters enhanced the reduction rate of CO 2 by overcoming the thermodynamic limitations in comparison to the fermentation products. The production of SCFA was observed to increase linearly in comparison to control reactors more than 6.7% in R2, 21.2% in R3
fermenters, and four fermentation units were used per treatment. Fermentation end-products, extent of feed degradation and composition of the microbial community (qPCR) in digesta were determined.
2017/5/3/ · Membrane bioreactor systems can enhance anaerobic lactic acid fermentation by reducing product inhibition, thus increasing productivity. In batch fermentations, the bioconversion of glucose is strongly inhibited in the presence of more than 100 g·L −1 lactic acid and is only possible when the product is simultaneously removed,
2021/8/10/ · Anaerobic fermentation is an eco-friendly technology for waste activated sludge (WAS) treatment, during which resource recycle can be achieved. Anaerobic fermentation or digestion is a promising WAS treatment method because it can simultaneously reduce sludge mass and recycle useful bioproducts including volatile fatty
2024/3/11/ · This study demonstrated the advantages and feasibility of ionizing irradiation pretreatment for the anaerobic fermentation of kitchen waste with the aim of
Abstract. Conventional anaerobic digestion is an established technology for wastewater stabilization, but methane production rates and net energy yields are generally too low to make the process competitive as a source of methane. Numerous improvements are being developed to make conversion of plant biomass to methane and simultaneous waste
2024/2/25/ · Acidogenic fermentation can convert food waste (FW) into small molecules of acids and alcohols, and the broth can be used as a carbon source of denitrification in wastewater treatment plants. However, the soluble nitrogen-containing substances generated in fermentation influence the quality of the carbon source, and