2023/10/10/ · Sub-moderate temperature (ranging from low to moderate temperature) anaerobic digestion (AD) could balance fermentation efficiency and energy input. We investigated biogas production and the microbial community in wastewater AD at sub-moderate (15 °C, 20 °C, and 25 °C) and moderate (35 °C; control group) temperatures

2019/10/15/ · Influences of PET microplastics on microbial community in long-term continuous operation of anaerobic fermentation reactor To further understand the long-term effects of PET microplastics on alkaline anaerobic fermentation of WAS from the aspect of microbial community, two lab-scale anaerobic fermenters were operated

2020/5/15/ · Finally, the feasibility of continuous production and recovery of VFAs was validated using a two-phase leachate bed bioreactor at the optimal conditions. Average concentration and yield of the total VFAs in the continuous operation were 6.3 g COD/L and 0.29 g VFA/g VS added, respectively. The findings in this study could provide pivotal

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2023/7/28/ · Anaerobic fermentation (AF) can effectively dispose of kitchen waste (KW) without the shortcomings of traditional such as incineration and sanitary landfill. However, KW has a high organic content, which easily leads to acidification and ammonia inhibition during digestion. To mitigate this issue, anaerobic co-digestion

2024/3/14/ · Anaerobic digestion is a potential treatment for industrial wastewater that provides valuable end-products, including renewable energy (biogas). However, waste streams may be too variable, too dilute at high volumes, or missing key components for stable digestion; all factors that increase costs and operational difficulty, making

2020/3/1/ · Ethanol pre-fermentation of FW can improve the system's tolerance to high OLR and stability of semi-continuous anaerobic digestion. The maximum OLR of ethanol pre-fermentation group was 5.5 g-VS·L −1 ·d −1. Ethanol pre-fermentation treatment promoted protein hydrolysis into amino acids in the FW substrate, which was further

2022/2/1/ · The long-term continuous two-stage anaerobic fermentation systems were setup and operated continuously for conducting the experiments, which consist of a total of four fully-stirring reactors with similar cylindrical shape (Fig. 1).Specifically, there was one WAS alkaline fermentation reactor with effective volume of 8 L, internal diameter of

The batch fermentation systems can be used and out of is more popular. For continuous operation we need 4 numbers of fermenter according to the fermentation time.The Batch and Continuous fermentation systems can be used and out of both batch process is more popular. By using material balance, we get the volume of

2024/6/3/ · Here, a comprehensive investigation was conducted under various operational strategies aimed at enhancing biohydrogen production via dark fermentation, with a specific focus on the lactate metabolic pathway, using powdered cheese whey as a substrate. Initially, a batch configuration was tested to determine both the maximum …

2016/1/1/ · This paper addresses the batch stirred bioreactor design for ethanol production with yeasts Saccharomyces cerevisiae under anaerobic conditions carried out to improve the performance of the fermentation process. A large, appropriate – sized fermenter is supposed 70 m 3. The operating volume is 52,5 m 3. Batch fermentation …

2021/2/12/ · Industrial organic waste from food processing, livestock production, brewery, bakery, and other related industries is a renewable substrate for anaerobic digestion to produce methane (CH 4) or with some process manipulation and control to produce hydrogen (H 2).Type of waste, its strength, presence of any toxic compounds, …

2024/1/1/ · Anaerobic fermentation to produce biogas is a microbial-driven process, with various species acting in different stages of the conversion of input …

2014/12/5/ · If well conducted, continuous fermentation processes will lead to the reduced cost of industrial bio-products. To achieve cost-efficient open and continuous fermentations, the feeding of raw materials and the removal of products must be conducted in a continuous manner without the risk of contamination, even under ‘open’ conditions.

2022/3/15/ · Abstract and Figures. Modern fermentation processes include a variety of fermentation , such as fed batch fermentation and continuous fermentation. This paper will focus on the principles