Moreover, the improved energy balance was provided. In both co-digestion series, slightly lower VS removal (as for the control) and stable process performance occurred. Using cavitated BSG and MLL, such a beneficial effect was not observed. The average biogas yield was 0.48 ± 0.03 m³ kg⁻¹ VS added, while in the control run 0.41 ± 0.03 m³ kg⁻¹ VS added. In the presence of cavitated BSG and MPW, a significant increase in biogas/methane production was provided as compared to SS mono-digestion, with the related improvement in kinetic constant by 3.5%. In both co-digestion series, the constant co-substrate dose of 6% v/v was adopted. The AD experiments were performed in semi-flow reactors, under mesophilic conditions at HRT of 20 and 21 d. The initial pressure was 7 bar and the number of recirculation passes through the cavitation zone was 30. An orifice plate with a conical concentric hole of 3/10 mm (inlet/outlet diameter) was applied as cavitation device. Prior to AD, BSG was pretreated involving the hydrodynamic cavitation (HC) two different carriers were applied: MPW (municipal pre-settled wastewater) and mature landfill leachate (MLL). A holistic approach that includes the impact of co-substrates and their carriers on the anaerobic digestion (AD) process, and the energetic aspects, was involved. In the present study, a combined technology for energetic brewery spent grain (BSG) use in co-digestion with sewage sludge (SS) was presented. Therefore, the anaerobic co-digestion of SS and BSG might be considered as a cost-effective solution that could contribute to the energy self-efficiency of wastewater treatment plants (WWTPs) and sustainable waste management for breweries. Importantly, the mono- and co-digestion process proceeded in stable manner. 40% and related to the longer HRT of 20 d. However, due to the supplementation of the feedstock with BSG rich in organic compounds, the significantly enhanced energy profits were achieved with the highest value of approx. As compared to SS mono-digestion, reductions by 21 and 35% were found at HRT of 20 and 18 d, respectively. In the BSG presence, the decrease in kinetic constant values was observed. At HRT of 20 d, the methane yield was 0.21 m ³ kg/VS added for both mono- and co-digestion runs. However, there was no difference in terms of statistical significance. At HRT of 18 d, in the co-digestion run, the average methane yield was 0.27 m ³ kg/VS added, while in the control run the higher value of 0.29 m ³ kg/VS added was observed. In co-digestion runs, the BSG mass to the feed volume ratio was constant and maintained 1:10.The results indicated that the addition of BSG did not influence the biogas production, by comparison with SS mono-digestion (control run). The experiment was conducted in semi-continuous anaerobic reactors (supplied once a day) operating under mesophilic conditions (35☌) at different hydraulic retention times (HRT) of 18 and 20 d. We advise a transparent cup with some depth and relatively lesser diameter to allow yourself the marvelous scent and unique color for a fabulous sensory experience.The present study examines the effect of introducing dried brewery spent grain (BSG), known as the main solid by-product of the brewery industry on biogas yields and kinetics in co-digestion with sewage sludge (SS). Note, Kangra Tea could be brewed at least 3 times. Strain it through a sieve into your favorite cup and store the infused leaves for your next brew.You could initially do this by tasting the brew every 30 seconds to find your own perfect brew time. We recommend you to time the brew and judge the color for your very own sweet spot for every new pack.Just over a minute for a mild flavor and up to 3 minutes or longer, if you prefer your tea much stronger. Do note that every harvest is unique and therefore standardization is not possible. #Digested organics brew full#Introduce a round spoon full of Kangra Tea ( Green or Black) per cup into the Kettle or the Pan.Stop as soon as it reaches the boiling point. Heat the water to first-boil in a Kettle or a Pan but do not allow it to simmer.
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