scholarly journals Beer spent grains biomass for biogas production: Characterization and anaerobic digestion-oriented pre-treatments

2021 ◽  
Vol 7 ◽  
pp. 921-929
Author(s):  
Maurizio Carlini ◽  
Danilo Monarca ◽  
Sonia Castellucci ◽  
Andrea Mennuni ◽  
Luca Casini ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Spent Grains

Influence of Ultrasound on the Synthesis of Biogas During Disposal of Beer Spent Grain

2021 ◽  
pp. 33-38
Author(s):  
Владимир Владимирович Житков ◽  
Борис Николаевич Федоренко
Keyword(s):  
Anaerobic Digestion ◽  
Energy Production ◽  
Biogas Production ◽  
Organic Substances ◽  
Ultrasonic Pretreatment ◽  
Biogas Yield ◽  
Spent Grains ◽  
Efficient Resource ◽  
Spent Grain ◽  
Environmentally Friendly Process

Ультразвуковая предварительная обработка считается экологически чистым процессом для повышения биоразлагаемости органических веществ при анаэробном сбраживании. Однако количество потребляемой энергии во время предварительной обработки является проблемой, особенно в тех случаях, когда производство энергии является основной целью биогазовой установки. Основной целью настоящего исследования работы было изучение эффективности ультразвуковой предварительной обработки для увеличения производства биогаза из отходов пивоваренного производства - пивной дробины. Результаты показали, что применение частоты 40 кГц при температуре 40 °С соответственно привело к увеличению выхода биогаза на 83%. Методология показала положительный результат в отношении содержания метана и скорости производства биогаза. Использование ультразвуковой предварительной обработки в отношении пивоваренной дробины для производства биогаза, по-видимому, позволяет решить проблемы не только эффективной утилизации пивоваренных отходов, но и создать экономически эффективный ресурс возобновляемой энергии на пивоваренном или аффилированном с ним производстве. Ultrasonic pretreatment is considered an environmentally friendly process to increase the biodegradability of organic substances during anaerobic digestion. However, the amount of energy consumed during pretreatment is a problem, especially in cases where energy production is the main purpose of the biogas plant. The main purpose of this study was to study the effectiveness of ultrasonic pretreatment to increase the production of biogas from brewing waste - brewer's grains. The results showed that the use of a frequency of 40 kHz at a temperature of 40 °C, respectively, led to an increase in the biogas yield by 83%. The methodology showed a positive result in terms of methane content and biogas production rate. The use of ultrasonic pretreatment for brewing spent grains for biogas production seems to solve the problems of not only efficient disposal of brewing waste, but also to create an economically efficient resource of renewable energy in brewing or its affiliated production.

Biogas Production from Community Waste to Optimise the Substrate for Anaerobic Digestion

2018 ◽  
Vol 12 (7) ◽  
pp. 580
Author(s):  
Antony P. Pallan ◽  
S. Antony Raja ◽  
C. G. Varma ◽  
Deepak Mathew D.K. ◽  
Anil K. S. ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production

Anaerobic Digestion of Banana Wastes for Biogas Production

2020 ◽  
Vol 10 (3) ◽  
Author(s):  
Damaris Kerubo Oyaro ◽  
Zablon Isaboke Oonge ◽  
Patts Meshack Odira
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Banana Wastes

Simulation of the Impact of Higher Ammonia Recycle Loads Caused by Upgrading Anaerobic Sludge Digesters

2005 ◽  
Vol 40 (4) ◽  
pp. 491-499 ◽  
Author(s):  
Jeremy T. Kraemer ◽  
David M. Bagley
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Treatment Plant ◽  
Anaerobic Sludge ◽  
Content Increase ◽  
Limited Information ◽  
Dynamic Simulations ◽  
Treatment Train ◽  
Temperature Liquid ◽  
The Impact

Abstract Upgrading conventional single-stage mesophilic anaerobic digestion to an advanced digestion technology can increase sludge stability, reduce pathogen content, increase biogas production, and also increase ammonia concentrations recycled back to the liquid treatment train. Limited information is available to assess whether the higher ammonia recycle loads from an anaerobic sludge digestion upgrade would lead to higher discharge effluent ammonia concentrations. Biowin, a commercially available wastewater treatment plant simulation package, was used to predict the effects of anaerobic digestion upgrades on the liquid train performance, especially effluent ammonia concentrations. A factorial analysis indicated that the influent total Kjeldahl nitrogen (TKN) and influent alkalinity each had a 50-fold larger influence on the effluent NH3 concentration than either the ambient temperature, liquid train SRT or anaerobic digestion efficiency. Dynamic simulations indicated that the diurnal variation in effluent NH3 concentration was 9 times higher than the increase due to higher digester VSR. Higher recycle NH3 loads caused by upgrades to advanced digestion techniques can likely be adequately managed by scheduling dewatering to coincide with periods of low influent TKN load and ensuring sufficient alkalinity for nitrification.

Biogas Production Using Anaerobic Digestion of Industrial Waste

2016 ◽  
Vol 832 ◽  
pp. 55-62
Author(s):  
Ján Gaduš ◽  
Tomáš Giertl ◽  
Viera Kažimírová
Keyword(s):  
Anaerobic Digestion ◽  
Industrial Waste ◽  
Large Scale ◽  
Biogas Production ◽  
Biogas Plant ◽  
Parallel Operation ◽  
Paper Production ◽  
Biochemical Conversion ◽  
Mixed Biomass ◽  
Economic Balance

In the paper experiments and theory of biogas production using industrial waste from paper production as a co-substrate are described. The main aim of the experiments was to evaluate the sensitivity and applicability of the biochemical conversion using the anaerobic digestion of the mixed biomass in the pilot fermentor (5 m3), where the mesophillic temperature was maintained. It was in parallel operation with a large scale fermentor (100 m3). The research was carried out at the biogas plant in Kolíňany, which is a demonstration facility of the Slovak University of Agriculture in Nitra. The experiments proved that the waste arising from the paper production can be used in case of its appropriate dosing as an input substrate for biogas production, and thus it can improve the economic balance of the biogas plant.

Effects of hydrothermal pretreatment and bamboo hydrochar addition on anaerobic digestion of tofu residue for biogas production

2021 ◽  
pp. 125279
Author(s):  
Ungyong Choe ◽  
Ahmed M. Mustafa ◽  
Ximing Zhang ◽  
Kuichuan Sheng ◽  
Xuefei Zhou ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Hydrothermal Pretreatment

scholarly journals Innovations in anaerobic digestion: a model-based study

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Karol Postawa ◽  
Jerzy Szczygieł ◽  
Marek Kułażyński
Keyword(s):  
Mathematical Model ◽  
Anaerobic Digestion ◽  
Production Efficiency ◽  
Biogas Production ◽  
Biogas Plant ◽  
Methane Content ◽  
Pig Manure ◽  
Pig Slurry ◽  
Production Chain ◽  
The Impact

Abstract Background Increasing the efficiency of the biogas production process is possible by modifying the technological installations of the biogas plant. In this study, specific solutions based on a mathematical model that lead to favorable results were proposed. Three configurations were considered: classical anaerobic digestion (AD) and its two modifications, two-phase AD (TPAD) and autogenerative high-pressure digestion (AHPD). The model has been validated based on measurements from a biogas plant located in Poland. Afterward, the TPAD and AHPD concepts were numerically tested for the same volume and feeding conditions. Results The TPAD system increased the overall biogas production from 9.06 to 9.59%, depending on the feedstock composition, while the content of methane was slightly lower in the whole production chain. On the other hand, the AHPD provided the best purity of the produced fuel, in which a methane content value of 82.13% was reached. At the same time, the overpressure leads to a decrease of around 7.5% in the volumetric production efficiency. The study indicated that the dilution of maize silage with pig manure, instead of water, can have significant benefits in the selected configurations. The content of pig slurry strengthens the impact of the selected process modifications—in the first case, by increasing the production efficiency, and in the second, by improving the methane content in the biogas. Conclusions The proposed mathematical model of the AD process proved to be a valuable tool for the description and design of biogas plant. The analysis shows that the overall impact of the presented process modifications is mutually opposite. The feedstock composition has a moderate and unsteady impact on the production profile, in the tested modifications. The dilution with pig manure, instead of water, leads to a slightly better efficiency in the classical configuration. For the TPAD process, the trend is very similar, but the AHPD biogas plant indicates a reverse tendency. Overall, the recommendation from this article is to use the AHPD concept if the composition of the biogas is the most important. In the case in which the performance is the most important factor, it is favorable to use the TPAD configuration.

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