2023/9/15/ · However, it does cover small (Tier 1), medium (Tier 2), and large (Tiers 3 and 4) facilities with wastewater flow rates of 37.8–113.4 m 3 /yr, 113.4–1134 m 3 /yr, and 1134–56,700 m 3 /yr, respectively. Facilities that direct wastewater to a community sewer system and that containerize wastewater for offsite disposal are not required to
2022/2/8/ · 7.2.1 Solid-State Fermentation. Solid-state fermentation is a microbial fermentation process in which the medium is in a solid state and the fermentation system is carried out in the absence of almost absence of free water present (Xu et al. 2002).Solid-state fermentation substrates are water-insoluble polymers, and the substrate is not only a site
2024/1/31/ · Highly efficient downstream processes. The team focused on two options for initial recovery of isopropanol and acetone: vacuum distillation and pass-through distillation. "Vacuum distillation was
2021/2/25/ · This study investigated waste activated sludge (WAS) and food waste (FW) co-fermentation in batch assays to produce carboxylic acids. Three mixtures (50%, 70% and 90% WAS in VS basis) were studied under different conditions: with and without extra alkalinity, and with and without WAS auto-hydrolysis pre-treatment.
2024/3/1/ · Organic waste contains a large amount of matter containing carbon, so it is feasible to use it as substrate or electron donor to produce medium chain fatty acids, such as in a fermentation broth of organic waste such as sludge, food waste, fruit and vegetable waste, etc (Reddy et al., 2020; Wang et al., 2020a, Wang et al., 2020b, Wang et al
2019/7/31/ · The EDGAR v4.3.2 10 provides emissions from fossil fuel, waste treatment and landfill, rice cultivation, livestock enteric fermentation, manure management, and agricultural waste burning for the
2024/1/1/ · The agricultural CH 4 emissions embodied in inflow, outflow and net transfer of interprovincial trade (unit: Gg). China's agriculture related CH 4 emissions embodied in interprovincial trade increased from 11.36 Tg in 2012 to 12.10 Tg in 2015, and then decreased to 11.48 Tg in 2017. Notably, from 2012 to 2017, the CH 4 embodied in imports
Dry Fermentation of organic waste and manure. Dry fermentation (SSAD) in a biogas plant involves the fermentation of organic feedstocks to produce biogas under anaerobic conditions (without atmospheric oxygen). The solid fermentation plant consists of drivable, gas-tight, and acid-resistant concrete fermenter boxes, which are filled and emptied
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As displayed in Fig.1, firstly, food waste after pretreatment was used as substrate for ethanol fermentation under the optimum conditions of pH 5, temperature 30 °C, and fermentation time of 40 h, following the procedure reported by (Ma et al. 2008). Secondly, the stillage eluted of ethanol distillation was used as substrate for methane
2016/1/27/ · In a first phase, Aemetis plans to adopt the process by adding an 8 Mgy gas fermentation unit to its existing 60 Mgy first generation biofuel facility in Keyes. This technology enables Aemetis to produce advanced ethanol that is valued up to approximately $3 per gallon more than traditional ethanol (LanzaTech, 2016).
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ABSTRACT: Fermentation of food waste to L-lactic acid (L-LA), a high value-added platform molecule, is a green approach for resource recovery. However, low yield and optical activity (OA) of L-LA are key limiting factors for such efforts. Here, we report that ammonium addition (300 mg of NH4+-N/L) can double the yield of LA and increase OA of L
An urge to find renewable substances for sustainable development results in a strategy to valorize organic solid waste using solid state fermentation (SSF) and to manage the issue of solid wastes in a green approach.
Fermentation: Fermentation is a metabolic process where microorganisms convert organic substrates into desired products. In the context of agro-waste upcycling, fermentation is used to transform waste materials into valuable compounds. Microbial Engineering: Genetic engineering and synthetic biology techniques are used to modify microorganisms to