2021/1/15/ · The problem of poor carbon source is a common technical bottleneck inhibiting the nutrients removal in biological wastewater treatment. This study aimed to investigate the feasibility of using food waste (FW) fermentation liquid (FL) as the external carbon source to enhance biological nitrogen and phosphorus removal (BNPR) in

2024/5/27/ · The Alitte fermentation kit is the perfect fermentation kit for first-time fermenters and experienced kitchen maestros alike. This mason jar fermenting kit consists of an extractor pump, three special leak-safe fermenting lids that fit over most wide-mouth mason jars, and three fermentation weights to keep contents below the brine.

2022/2/1/ · However, no significant change in VFA composition was reported during the co-fermentation of waste activated sludge and fruit/vegetable waste at an HRT ranging from 1 to 4 d (Dinsdale et al., 2000; Zhou et al., 2018). 4.1.5. Solid retention time. Solids retention time (SRT) refers to the length of time biomass remains in the reactor.

39.4.2 Fermentation of agri-food waste. Fermentation is a process of converting the organic material into various products using different microbes, such as bacteria and fungi. There are several different products that could be produced through fermentation, for example, fuels, chemicals, pharmaceuticals, etc.

2020/10/20/ · Recent examples of fermentation-based valorization strategies include anaerobic digestion of organic feedstocks through mixed culture fermentation (De Groof

2022/9/12/ · During the anaerobic fermentation process, the organic loading rate is defined as the quantity of the material fed to the reactor per day per unit operating volume. Municipal waste fermentation plants generally operate at loading rates of 1.2–12.0 kg VS or 2.2–33.7 kg COD per cubic meter per day [58, 76,77,78]. During the entire anaerobic

External carbon source was usually added to enhance denitrification efficiency for nitrogen removal in wastewater treatment. In this study, waster sludge alkaline fermentation liquid was successfully employed as an alternative carbon source for biological denitrification. The denitrification perform

2022/11/9/ · Abstract. The start-up of two-stage, semi-continuous mesophilic anaerobic digestion (TSAD) of food waste is stabilized by altering the hydraulic retention time (HRT)

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

2024/3/1/ · (In initial fermentation substrate and replaced fermentation substrate, the ratio of Ti-loaded sludge to food waste is 3:1, and 125 ml is replaced every other day). Throughout the 48-day fermentation process, Ti-loaded sludge and food waste combination produced an average VFAs yield of 2529.1 mg-COD/L, representing 89.8% SCOD of the

2024/5/1/ · It is imperative to note that lactic acid-type fermentation liquid (LAFL) markedly differs from VFA-rich fermentation liquid. During the fermentation process of food waste, lactic acid is preferentially produced during glycolysis due to its lower Gibbs free energy requirement compared to VFA (Holtzapple et al., 2022, Zhou et al., 2018).

2023/10/11/ · The marine carotenoid astaxanthin is one of the strongest natural antioxidants and therefore is used in a broad range of applications such as cosmetics or nutraceuticals. To meet the growing market demand, the natural carotenoid producer Corynebacterium glutamicum has been engineered to produce astaxanthin by

1 1 Optimization of urban waste fermentation for volatile fatty acids production 2 3 Giulia Morettoa, Francesco Valentinob*, Paolo Pavana, Mauro Majoneb, David 4 Bolzonellac 5 aDepartment of Environmental Sciences, Informatics and Statistics, Ca’ Foscari 6 University of Venice, Dorsoduro 3246, 30123, Venice, Italy 7 bDepartment of Chemistry, La

2021/6/5/ · Electrodialysis, electrophoresis, and capacitive deionization with ion-exchange membranes are increasingly used in hybrid membrane technologies for the separation of anions from polybasic weak

2023/12/1/ · Along with the accumulation of organic acids, the pH value dropped from 3.3 to 3.1, and the highly acidic environment inhibited lactic acid bacteria (LAB) (Yang et al., It was an effective method for producing volatile organic acids and alcohols from food waste fermentation to add the biogas slurry discharged from anaerobic digesters into ...