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Journal articles on the topic 'Anaerobic Digestor'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Durogbade, Samuel Adesina, Temitayo Bukola Korode, and Bamidele Honesty Akpeji. "Production of Biogas from Plantain Peels, Using Cow Dung as Substrate." British Journal of Multidisciplinary and Advanced Studies 5, no. 2 (2024): 40–53. http://dx.doi.org/10.37745/bjmas.2022.0471.

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In a biodigester setup, the researchers investigated the production of methane gas using plantain peel and cow dung as substrates. Two buncher flasks, corks, a glass tube, and a calibrated conical flask comprised the biodigester setup. The setup involved anaerobic digestion processes, analyzing different ratios of cow dung and plantain peel to produce biogas. The main anaerobic digestion process was carried out in Buncher flask one, after which the methane gas formed was sent to Buncher flask two through a rubber tube, where the by-products such as carbon dioxide and hydrogen sulfide were abso

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2

Moletta, Marina, Nathalie Wery, Jean-Philippe Delgenes, and Jean-Jacques Godon. "Microbial characteristics of biogas." Water Science and Technology 57, no. 4 (2008): 595–99. http://dx.doi.org/10.2166/wst.2008.107.

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The microbial diversity of biogas was analyzed in order to examine the aerosolization behavior of microorganisms. Six biogas samples were analyzed: five from mesophilic and thermophilic anaerobic digestors treating different wastes, and one from landfill. Epifluorescent microscopic counts revealed 106 prokarya m−3. To assess the difference occuring in aerosolization, 498 biogas-borne 16S ribosomal DNA were analyzed and compared to published anaerobic digestor microbial diversity. Results show a large microbial diversity and strong discrepancy with digestor microbial diversity. Three different

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3

de Vries, Jacob, Faizan Saleem, Enze Li, et al. "Comparative Analysis of Metagenomic (Amplicon and Shotgun) DNA Sequencing to Characterize Microbial Communities in Household On-Site Wastewater Treatment Systems." Water 15, no. 2 (2023): 271. http://dx.doi.org/10.3390/w15020271.

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The performance of on-site wastewater treatment systems (OWTSs) can be improved by altering digester design and by manipulating environmental variables that affect microbial community composition. Community composition can potentially be assessed using high-throughput DNA sequencing, but the two most common methods of community DNA sequencing (16S and shotgun sequencing) generally yield different taxonomic identification profiles and can perform differently according to the sampled environment. To evaluate the use of these two approaches in monitoring OWTS operation, we conducted a comparative

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4

Rusín, Jiří, Kateřina Chamrádová, and Kateřina Kašáková. "Development of the Laboratory Anaerobic Bioreactor for Wet and Dry Digestion Processes." GeoScience Engineering 62, no. 4 (2016): 5–9. http://dx.doi.org/10.1515/gse-2016-0024.

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Abstract This article presents partial results of the laboratory development of an anaerobic bioreactor designed for the physical modelling of (semi)continuous dry or wet anaerobic digestion processes. A horizontal cylindrical tank reactor of 0.4 m3 total capacity has been developed. The reactor allows the continuous stirring of a liquid batch or the intermittent stirring of a solid batch. The bioreactor has been used as a lab-scale digestor in the research project dealing with high-solids (dry) anaerobic co-digestion organic fraction of mixed municipal solid waste. The first experiment was pe

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Morel, E., K. Santamaria, M. Perrier, S. R. Guiot, and B. Tartakovsky. "Multi-wavelength fluorometry for anaerobic digestion process monitoring." Water Science and Technology 52, no. 1-2 (2005): 465–71. http://dx.doi.org/10.2166/wst.2005.0554.

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Applicability of multi-wavelength fluorometry for anaerobic digestion process monitoring was investigated in a 3.5 L upflow anaerobic sludge bed (UASB) lab-scale reactor. Both off-line and on-line monitoring of key process parameters was tested. Off-line emission spectra were measured at an angle of 90° to the excitation beam using a cuvette. On-line measurements were carried out using a fiber optic probe in the external recirculation line of the digester. Fluorescence spectra were correlated to available analytical measurements to obtain partial least square regression models. An independent

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6

Zhang, Kun, Yan-Ling Zhang, Xin Ouyang, et al. "Genome-Centered Metagenomics Analysis Reveals the Microbial Interactions of a Syntrophic Consortium during Methane Generation in a Decentralized Wastewater Treatment System." Applied Sciences 10, no. 1 (2019): 135. http://dx.doi.org/10.3390/app10010135.

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The application of anaerobic digestors to decentralized wastewater treatment systems (DWTS) has gained momentum worldwide due to their ease of operation, high efficiency, and ability to recycle wastewater. However, the microbial mechanisms responsible for the high efficiency and ability of DWTS to recycle wastewater are still unclear. In this study, the microbial community structure and function of two different anaerobic bioreactors (a primary sludge digestor, PSD, and anaerobic membrane bioreactor, AnMBR) of a DWTS located in Germany was investigated using 16S rRNA gene amplicon and metageno

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7

Vaz, F., A. Torres, and C. Neiva Correia. "Case study: the characteristics of the biodegradable waste for the anaerobic digestion plant in Lisbon area." Water Science and Technology 58, no. 8 (2008): 1563–68. http://dx.doi.org/10.2166/wst.2008.499.

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Taking into account the physical-chemical characteristics of the SC-OFMSW processed at Valorsul's anaerobic digestion plant, the influence of seasonal effects was studied. The waste presents a good quality, with a putrescible content of around 90%. In terms of chemical characteristics, the waste composition is similar to the one referred in the literature. The results show that seasonal variations seem not to affect the SC-OFMSW characteristics. The waste is very soluble and for that reason the solids content in the digester is low (TS in the digestor is 2.8%). The production of biogas is high

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8

Freemantle, Ryan, Nick Butson, Janet Goodfellow, Julie Konzuk, and James G. Longstaffe. "Nuclear Magnetic Resonance Spectroscopy Analysis of Anaerobic Microbial Metabolic Response to Benzalkonium Chloride Disinfectant." Applied Sciences 12, no. 9 (2022): 4620. http://dx.doi.org/10.3390/app12094620.

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Quaternary ammonium compounds (QACs) are disinfection agents used in industrial cleaning processes that are known to interfere with the proper functioning of anaerobic waste digestion directly impacting the quality and quantity of the biogas produced (i.e., CO2 and CH4). While the impact of these contaminants on waste digestors are well known, the impact these compounds have on the metabolic profile of an anaerobic digestor is less understood. This paper describes the use nuclear magnetic resonance (NMR) spectroscopy as a non-targeted tool to monitor variations in the metabolic profile of anae

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9

Sekiguchi, Y., Y. Uyeno, A. Sunaga, H. Yoshida, and Y. Kamagata. "Sequence-specific cleavage of 16S rRNA for rapid and quantitative detection of particular groups of anaerobes in bioreactors." Water Science and Technology 52, no. 1-2 (2005): 107–13. http://dx.doi.org/10.2166/wst.2005.0505.

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We developed a rapid and simple method for rRNA-based quantitative detection of a specific group of microorganisms in complex ecosystems. The method relies on the sequence-specific scission of 16S rRNA with ribonuclease H (RNase H) and oligonucleotides that specifically hybridize with targeted rRNA molecules. RNAs from a complex community were first mixed with an oligonucleotide and were subsequently digested with RNase H to achieve sequence-dependent rRNA cleavage at the hybridization site. For the quantitative detection of targeted rRNAs, the resulting RNA fragment patterns were analyzed by

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10

Chen, T. H., P. Chynoweth, and R. BIljetina. "Anaerobic digestion of municipal solid waste in a nonmixed solids concentrating digestor." Applied Biochemistry and Biotechnology 24-25, no. 1 (1990): 533–44. http://dx.doi.org/10.1007/bf02920276.

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11

Martínez-García, Ricardo Adolfo, Teodoro Espinosa-Solares, Jorge Flores-Velázquez, Abraham Rojano-Aguilar, Omar Reséndiz-Cantera, and Abraham Jesús Arzeta-Ríos. "Mejoramiento del desempeño hidrodinámico de un digestor anaeróbico de laguna cubierta mediante CFD//Improving the hydrodynamic performance of a covered lagoon anaerobic digester by CFD." Biotecnia 22, no. 1 (2019): 56–66. http://dx.doi.org/10.18633/biotecnia.v22i1.1125.

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La digestión anaeróbica de residuos de explotacionespecuarias presenta beneficios tales como, la reducción de olores y agentes patógenos, la producción de biogás y biofertilizantes. La producción de metano está influenciada, entre otros factores, por el desempeño hidrodinámico del digestor. El objetivo de esta investigación fue construir y validar un modelo numérico basado en Dinámica de Fluidos Computacional (CFD), a partir de un prototipo de un digestor anaeróbico de laguna cubierta. Las simulaciones del modelo en CFD fueron realizadas a partir de las características del reactor y las propie

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12

Tan, Lea Chua, and Piet N. L. Lens. "Addition of granular activated carbon during anaerobic oleate degradation overcomes inhibition and promotes methanogenic activity." Environmental Science: Water Research & Technology 7, no. 4 (2021): 762–74. http://dx.doi.org/10.1039/d0ew01093f.

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Simply adding granular activated carbon (GAC) in an anaerobic digestor treating lipid-rich wastewater can improve acidogenesis and methanogenesis by more than 10 times compared to the control without GAC.

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Deepanraj, A., S. Vijayalakshmi, and J. Ranjitha. "Production of Bio Gas from Vegetable and Flowers Wastes Using Anaerobic Digestion." Applied Mechanics and Materials 787 (August 2015): 803–8. http://dx.doi.org/10.4028/www.scientific.net/amm.787.803.

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The present research paper describes about the anaerobic digestion of vegetable (Banana, Cauliflower, potato, and sweet potato) and flower wastes (Rose, sambangi, gulmohar, marigold, golden shower tree, silk tree mimosa) in a 1L capacity of anaerobic digestor using pig manure as an inoculums. The digester was operated in the ratio of 1:1 of substrate to inoculums at RT. The substrate concentrations are varied such as 5%, 7%, and 10% was used and amount of gas produced was analysed using digital pressure gauge. The results obtained showed that, marigold flower had given higher yield of biogas t

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14

Feitz, A. J., J. Guan, and T. D. Waite. "Size and structure effects on centrifugal dewatering of digested sewage sludge." Water Science and Technology 44, no. 2-3 (2001): 427–35. http://dx.doi.org/10.2166/wst.2001.0798.

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The application of light scattering over small angles for the determination of digested sludge floc size and structure and its relationship with dewaterability is investigated. It appears that improved dewatering corresponds with lower floc fractal dimension (a more open structure) and a smaller proportion of fine particles. The initial increase in fractal dimension with increasing polymer dose for the digested sludge is most likely due to more efficient aggregation of the finer particles and the resulting formation of denser particle aggregates. A large colloidal fractal of the digested sludg

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15

Tartakovsky, B., E. Morel, J. P. Steyer, and S. R. Guiot. "Variable Structure Model-Based Monitoring of an Anaerobic Digestor." IFAC Proceedings Volumes 37, no. 3 (2004): 475–79. http://dx.doi.org/10.1016/s1474-6670(17)32627-7.

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16

Beschkov, Venko N., and Ivan K. Angelov. "Volatile Fatty Acid Production vs. Methane and Hydrogen in Anaerobic Digestion." Fermentation 11, no. 4 (2025): 172. https://doi.org/10.3390/fermentation11040172.

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Volatile fatty acids (VFAs) are inevitable intermediates of biogas production during the anaerobic digestion of organic matter. The excessive accumulation of VFAs leads to a pH drop and the strong inhibition of methanogenesis. On the other hand, VFAs are useful commodities with different applications, and their fermentative production may compete with traditional production methods based on oil derivatives. The fermentation methods have commonalities with the biorefinery concept. The present review considers the methods of VFA fermentative production together with competitive simultaneous biog

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17

Alvarez, J., O. Monroy, and V. Ruiz. "Model and Control Strategies of a Two Stage Anaerobic Digestor." IFAC Proceedings Volumes 25, no. 2 (1992): 191–94. http://dx.doi.org/10.1016/s1474-6670(17)50349-3.

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18

Jabari, Linda, Hana Gannoun, Eltaief Khelifi, et al. "Bacterial ecology of abattoir wastewater treated by an anaerobic digestor." Brazilian Journal of Microbiology 47, no. 1 (2016): 73–84. http://dx.doi.org/10.1016/j.bjm.2015.11.029.

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19

Tran, Hung-Thuan, Young-Joo Park, Mi-Kyeoung Cho, Dong-Jin Kim, and Dae-Hee Ahn. "Anaerobic ammonium oxidation process in an upflow anaerobic sludge blanket reactor with granular sludge selected from an anaerobic digestor." Biotechnology and Bioprocess Engineering 11, no. 3 (2006): 199–204. http://dx.doi.org/10.1007/bf02932030.

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20

Guercini, S., G. Castelli, and C. Rumor. "Vacuum evaporation treatment of digestate: full exploitation of cogeneration heat to process the whole digestate production." Water Science and Technology 70, no. 3 (2014): 479–85. http://dx.doi.org/10.2166/wst.2014.247.

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Vacuum evaporation represents an interesting and innovative solution for managing animal waste surpluses in areas with high livestock density. To reduce operational costs, a key factor is the availability of an inexpensive source of heat, such as that coming from an anaerobic digestion (AD) plant. The aim of this study was to test vacuum evaporation for the treatment of cattle slurry digestate focusing on heat exploitation. Tests were performed with a pilot plant fed with the digestate from a full-scale AD plant. The results were used to evaluate if and how cogeneration heat can support both t

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21

Fahmy, M., E. Heinzle, and O. M. Kut. "Treatment of Bleaching Effluents in Aerobic/Anaerobic Fluidized Biofilm Systems." Water Science and Technology 24, no. 3-4 (1991): 179–87. http://dx.doi.org/10.2166/wst.1991.0474.

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Biodegradation of chloroorganic compounds in real industrial bleaching effluents (chlorination and extraction), with adapted biofilm in fluidized sand bed reactors, was studied under aerobic and anaerobic conditions. The effluents were only diluted and supplied with mineral nutrients. Two reactor combinations were compared with a single stage aerobic digestor (AFB). In the anaerobic-aerobic reactors in series (AAS), the effluents were first treated anaerobically followed by an aerobic reactor in a single pass. In the anaerobic-aerobic recycle reactor (AAR), the reactor content was periodically

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22

Machado, Letícia Ribeiro, Adriano Henrique Ferrarez, Jader Lugon Junior, and Fernando César Alves. "Biogas production and composition optimization in an anaerobic digestor using cheese whey and swine manure as substrate." Acta Scientiarum. Technology 44 (July 6, 2022): e56923. http://dx.doi.org/10.4025/actascitechnol.v44i1.56923.

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The search for new sources of energy has intensified these days due to the environmental impacts caused by fossil fuels. The tripod composed of energy, food and water is the base of human existence. Food production implies the generation of organic waste and the need to manage it properly. The dairy and pig farming sectors have an essential role in the Brazilian economy, producing a large amount of waste. One energy and environmental alternative to treat this issue is anaerobic digestion. Here we aimed to optimize the production and composition of biogas obtained from cheese whey and swine man

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23

FLOQI, Tania. "Energy Production From Biomass, Case Study: Cow Farm." Ingenious 2, no. 2 (2022): 103–9. http://dx.doi.org/10.58944/sdsu6603.

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Recently the use of biomass for biogas production is very limited in Albania. According to data acquired from the study, the highest share in the entire structure of urban solid waste is that of organic waste 41-61.2%. A large part of these wastes is bio digestible and can used for production or utilized as potential substrate in anaerobic digestion to produce biogas, a renewable source of energy and environment friendly too. Live stocks waste and especially cow manure farms are concerned in this study because there are a high number 11813 of them are spread all over Albania. In addition, the

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24

Thakur, Manisha, Ashish Kumar, and Sudhir Kumar. "Biogas Production for Sustainable Energy Generation using One Stage Portable Digestor." E3S Web of Conferences 596 (2024): 01032. http://dx.doi.org/10.1051/e3sconf/202459601032.

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Biogas, produced from the anaerobic digestion of organic waste, is a sustainable and future-proof renewable energy source. The objective of this paper is to improve community service by installing affordable biogas digesters in Himachal Pradesh and nearby regions. As a community service, a number of portable biogas plants (above the ground) are installed in Himachal Pradesh and the nearby areas. The main aim of this was to familiarize and sensitize the people about energy production from waste and also for sustainability. The results from the various projects and experiments conducted at JUIT,

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Di Domenico, Enea Gino, Gianluca Petroni, Daniele Mancini, Alberto Geri, Luca Di Palma, and Fiorentina Ascenzioni. "Development of Electroactive and Anaerobic Ammonium-Oxidizing (Anammox) Biofilms from Digestate in Microbial Fuel Cells." BioMed Research International 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/351014.

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Microbial Fuel cells (MFCs) have been proposed for nutrient removal and energy recovery from different wastes. In this study the anaerobic digestate was used to feed H-type MFC reactors, one with a graphite anode preconditioned withGeobacter sulfurreducensand the other with an unconditioned graphite anode. The data demonstrate that the digestate acts as a carbon source, and even in the absence of anode preconditioning, electroactive bacteria colonise the anodic chamber, producing a maximum power density of 172.2 mW/m2. The carbon content was also reduced by up to 60%, while anaerobic ammonium

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26

Prifti, Holta, Tania Floqi, and Mirel Mico. "Potential Energy Production from Biogas Economically and Environmental Profitable. Case Study: Establishing a Batch Digester in “Fogi” Farm." European Journal of Engineering and Technology Research 6, no. 5 (2021): 70–72. http://dx.doi.org/10.24018/ejers.2021.6.5.2503.

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Recently the use of biomass for biogas production is very limited in Albania. According to data acquistion from the study, the highest share in the entire structure of urban solid waste is that of organic waste 41-61.2%. A large part of these waste are bio digestible and can used for production or utilized as potential substrate in anaerobic digestion to produce biogas, a renewable source of energy and environment friendly too. Live stocks waste and especially cow manure farms are concerned in this study because there are a high number 11813 of them are spread all over Albania. In

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27

Prifti, Holta, Tania Floqi, and Mirel Mico. "Potential Energy Production from Biogas Economically and Environmental Profitable. Case Study: Establishing a Batch Digester in “Fogi” Farm." European Journal of Engineering and Technology Research 6, no. 5 (2021): 70–72. http://dx.doi.org/10.24018/ejeng.2021.6.5.2503.

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Recently the use of biomass for biogas production is very limited in Albania. According to data acquistion from the study, the highest share in the entire structure of urban solid waste is that of organic waste 41-61.2%. A large part of these waste are bio digestible and can used for production or utilized as potential substrate in anaerobic digestion to produce biogas, a renewable source of energy and environment friendly too. Live stocks waste and especially cow manure farms are concerned in this study because there are a high number 11813 of them are spread all over Albania. In

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28

Shang, Y., B. R. Johnson, and R. Sieger. "Application of the IWA Anaerobic Digestion Model (ADM1) for simulating full-scale anaerobic sewage sludge digestion." Water Science and Technology 52, no. 1-2 (2005): 487–92. http://dx.doi.org/10.2166/wst.2005.0557.

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A steady-state implementation of the IWA Anaerobic Digestion Model No. 1 (ADM1) has been applied to the anaerobic digesters in two wastewater treatment plants. The two plants have a wastewater treatment capacity of 76,000 and 820,000 m3/day, respectively, with approximately 12 and 205 dry metric tons sludge fed to digesters per day. The main purpose of this study is to compare the ADM1 model results with full-scale anaerobic digestion performance. For both plants, the prediction of the steady-state ADM1 implementation using the suggested physico-chemical and biochemical parameter values was ab

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Tartakovsky, B., E. Morel, and S. R. Guiot. "Application of a VSM-Based Process Control to a Bench-Scale Anaerobic Digestor." Industrial & Engineering Chemistry Research 44, no. 1 (2005): 106–13. http://dx.doi.org/10.1021/ie030799y.

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30

Robbins, J. E., S. A. Gerhardt, and T. J. Kappel. "Effects of total ammonia on anaerobic digestion and an example of digestor performance from cattle manure-protein mixtures." Biological Wastes 27, no. 1 (1989): 1–14. http://dx.doi.org/10.1016/0269-7483(89)90026-8.

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31

Albuquerque, Sara Mendes de, and Simone de Aviz Cardoso. "Projeto de digestor anaeróbio para produção de biometano auxiliado por computador / Anaerobic digestor project for the production of biomethan assisted by computer." Brazilian Journal of Animal and Environmental Research 3, no. 4 (2020): 3395–405. http://dx.doi.org/10.34188/bjaerv3n4-049.

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Taskaev, M. V., L. A. Garifyanova, and M. V. Svalova. "Analysis of the Methane Tanks Structures for the Sludge Treatment from Sewage Treatment Plants." Intellekt. Sist. Proizv. 20, no. 1 (2022): 96–105. http://dx.doi.org/10.22213/2410-9304-2022-1-96-105.

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The paper presents analysis of digester designs, considers the advantages and disadvantages of biogas plants. Experimental data of technological process of anaerobic digestion in biogas plant are given, relation between temperature and time of raw sludge digestion is shown. The methodology of research of technological processes occurring in digesters at the experimental biogas plant AN-BR-3 is given. The principle of digesters operation is described. The most effective thermophilic mode of digestion is revealed. The relation between temperature and time during digestion in biogas plant has bee

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Pereira, Wilfred E., Colleen E. Rostad, David M. Updegraff, and Jon L. Bennett. "Microbial Transformations of Azaarenes in Creosote-Contaminated Soil and Ground Water: Laboratory and Field Studies." Water Science and Technology 20, no. 11-12 (1988): 17–23. http://dx.doi.org/10.2166/wst.1988.0261.

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Azaarenes or aromatic nitrogen heterocycles are a class of compounds found in wood-preservative wastes containing creosote. The fate and movement of these compounds in contaminated aquifers is not well understood. Water-quality studies in an aquifer contaminated with creosote near Pensacola, Florida, indicated that ground water was contaminated with several azaarenes and their oxygenated and alkylated derivatives, suggesting that these oxygenated compounds may be products of microbial transformation reactions. Accordingly, laboratory studies were designed to investigate the fate of these compo

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Ruiz, Thomas R., Sarah Andrews, and Geoffrey B. Smith. "Identification and characterization of nuclease activities in anaerobic environmental samples." Canadian Journal of Microbiology 46, no. 8 (2000): 736–40. http://dx.doi.org/10.1139/w00-049.

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DNA-degrading activity from anaerobic samples of bovine ruminal fluid, primary anaerobic digestor wastewater, freshwater sediments, and marine sediments was observed in the presence of 5 mM EDTA. Nuclease activity experiments involved exposing salmon chromosomal DNA to the environmental samples in 50 mM pH 7.2 buffer, incubating at 37°C, and subjecting the products to electrophoresis. The same stock and concentration of EDTA used in these assays (5 mM) completely inhibited commercial grade DNase. Nuclease activity in two of the samples, ruminal fluid and wastewater, was further characterized.

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M. Narayanan, C. "Production of Phosphate-Rich Biofertiliser Using Vermicompost and Anaerobic Digestor Sludge—A Case Study." Advances in Chemical Engineering and Science 02, no. 02 (2012): 187–91. http://dx.doi.org/10.4236/aces.2012.22022.

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Tartakovsky, B., E. Morel, J. P. Steyer, and S. R. Guiot. "Application of a Variable Structure Model in Observation and Control of an Anaerobic Digestor." Biotechnology Progress 18, no. 4 (2002): 898–903. http://dx.doi.org/10.1021/bp010142c.

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37

Bibes, G., P. Coirault, R. Ouvrard, and J. P. Steyer. "A methodology for nonlinear system identification using volterra series. application to an anaerobic digestor." IFAC Proceedings Volumes 36, no. 16 (2003): 1227–32. http://dx.doi.org/10.1016/s1474-6670(17)34927-3.

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Ramírez-Rivas, Iván D. "Anaerobic digestion modeling: from one to several bacterial populations." TecnoLógicas, no. 31 (November 30, 2011): 181. http://dx.doi.org/10.22430/22565337.117.

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Los sistemas de digestión anaeróbica son procesos complejos que desafortunadamente a menudo sufren de inestabilidad. A fin de diseñar, optimizar y operar eficientemente estos sistemas es necesario desarrollar estrategias apropiadas de control. Estas estrategias requieren, en general del desarrollo de modelos matemáticos. El proceso de digestión anaerobia comprende una red compleja de reacciones secuenciales y paralelas de naturaleza bioquímica y fisicoquímica. Generalmente, estas reacciones contienen un paso en particular, denominado reacción-limitante el cual siendo el más lento, limita la ta

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Agostini, Sara, Francesco Moriconi, Mauro Zampirolli, et al. "Monitoring the Microbiomes of Agricultural and Food Waste Treating Biogas Plants over a One-Year Period." Applied Sciences 13, no. 17 (2023): 9959. http://dx.doi.org/10.3390/app13179959.

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The knowledge of the microbiome in the anaerobic digestion (AD) is critical for stabilizing the process and optimizing the biogas yield. This work investigates the microbial ecology in four full-scale biogas plants with different feedstocks and process parameters. The three agricultural plants sharing similar feedstocks’ composition (mostly rich in proteins, cellulose and hemicellulose), have several hydrolytic and methanogenic species in common, suggesting that their substrates specifically shape the microbiomes. Particularly, the hydrolytic and likely syntrophic Defluviitoga tunisiensis was

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Wang, Yi, Jianhao Li, Miao Liu, et al. "Enhancement of anaerobic digestion of high salinity food waste by magnetite and potassium ions: Digestor performance, microbial and metabolomic analyses." Bioresource Technology 388 (November 2023): 129769. http://dx.doi.org/10.1016/j.biortech.2023.129769.

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41

Beschkov, Venko, Tsvetan Sapundzhiev, and Ivan Angelov. "Modelling of Biogas Production from Glycerol by Anaerobic Process in a Baffled Multi-Stage Digestor." Biotechnology & Biotechnological Equipment 26, no. 5 (2012): 3244–48. http://dx.doi.org/10.5504/bbeq.2012.0061.

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Godon, J. J., E. Zumstein, P. Dabert, F. Habouzit, and R. Moletta. "Molecular microbial diversity of an anaerobic digestor as determined by small-subunit rDNA sequence analysis." Applied and environmental microbiology 63, no. 7 (1997): 2802–13. http://dx.doi.org/10.1128/aem.63.7.2802-2813.1997.

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Delbès, Céline, Jean-Jacques Godon, and René Moletta. "16S rDNA Sequence Diversity of a Culture-accessible Part of an Anaerobic Digestor Bacterial Community." Anaerobe 4, no. 6 (1998): 267–75. http://dx.doi.org/10.1006/anae.1998.0176.

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Engeli, H., W. Edelmann, J. Fuchs, and K. Rottermann. "Survival of Plant Pathogens and Weed Seeds during Anaerobic Digestion." Water Science and Technology 27, no. 2 (1993): 69–76. http://dx.doi.org/10.2166/wst.1993.0079.

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The survival of Plasmodiophora brassicae was studied at digestion temperatures of 35 °C and 55 °C in laboratory batch digesters within one and two weeks, respectively. The study showed that digestion at 55 °C almost completely reduced the ability of infecting bait plants. The seeds of Rumex obtusifolius and Lycopersicon lycopersicum (tomatoes) were completely destroyed at 55 °C and a digestion time of 14 days, in laboratory batch digesters. The experiments carried out in a two stage pilot plant (Leach-Bed Solid Phase batch Digester for hydrolysis and a pulsating dynamic anaerobic filter for me

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Redhead, Sky, Jeroen Nieuwland, Sandra Esteves, et al. "Fate of antibiotic resistant E. coli and antibiotic resistance genes during full scale conventional and advanced anaerobic digestion of sewage sludge." PLOS ONE 15, no. 12 (2020): e0237283. http://dx.doi.org/10.1371/journal.pone.0237283.

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Antibiotic resistant bacteria (ARB) and their genes (ARGs) have become recognised as significant emerging environmental pollutants. ARB and ARGs in sewage sludge can be transmitted back to humans via the food chain when sludge is recycled to agricultural land, making sludge treatment key to control the release of ARB and ARGs to the environment. This study investigated the fate of antibiotic resistant Escherichia coli and a large set of antibiotic resistance genes (ARGs) during full scale anaerobic digestion (AD) of sewage sludge at two U.K. wastewater treatment plants and evaluated the impact

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Tanguay-Rioux, Fabrice, Laurent Spreutels, Caroline Roy, and Jean-Claude Frigon. "Assessment of the Feasibility of Converting the Liquid Fraction Separated from Fruit and Vegetable Waste in a UASB Digester." Bioengineering 11, no. 1 (2023): 6. http://dx.doi.org/10.3390/bioengineering11010006.

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Anaerobic digestion of food waste still faces important challenges despite its world-wide application. An important fraction of food waste is composed of organic material having a low hydrolysis rate and which is often not degraded in digesters. The addition of this less hydrolysable fraction into anaerobic digesters requires a longer hydraulic residence time, and therefore leads to oversizing of the digesters. To overcome this problem, the conversion of the highly biodegradable liquid fraction from fruit and vegetable waste in a up-flow anaerobic sludge blanket (UASB) digester is proposed and

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Sousa, Francine Aparecida, Alessandro Torres Campos, Pedro Ivo Sodré Amaral, Daiane Cecchin, and Alessandro Vieira Veloso. "PRODUÇÃO DE BIOGÁS PROVENIENTE DE CAMAS SOBREPOSTAS DE SUÍNOS." ENERGIA NA AGRICULTURA 32, no. 3 (2017): 229. http://dx.doi.org/10.17224/energagric.2017v32n3p229-236.

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Foi avaliada a eficiência do processo de biodigestão anaeróbia e a produção de biogás proveniente de cama sobreposta de suínos em fase de terminação, em biodigestores de bancada. Foram utilizados 12 protótipos de biodigestores laboratoriais de batelada, confeccionados em recipiente plástico e PVC com o volume utilizado de 20 litros. Os tratamentos constituíram-se de dois materiais de cama sobreposta de suínos como substrato, diluídas em água: Tratamento (M+B) - cama de maravalha+bagaço de cana e tratamento (MAR) - cama de maravalha. Para cada tratamento, foi avaliado o potencial poluidor do ef

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Mirtsou-Xanthopoulou, Chrysoula, Ioannis V. Skiadas, and Hariklia N. Gavala. "On the Effect of Aqueous Ammonia Soaking Pre-Treatment on Continuous Anaerobic Digestion of Digested Swine Manure Fibers." Molecules 24, no. 13 (2019): 2469. http://dx.doi.org/10.3390/molecules24132469.

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(1) Background: The continuously increasing demand for renewable energy sources renders anaerobic digestion as one of the most promising technologies for renewable energy production. Due to the animal production intensification, manure is being used as the primary feedstock for most biogas plants. Their economical profitable operation, however, relies on increasing the methane yield from the solid fraction of manure, which is not so easily degradable. The solid fraction after anaerobic digestion, the so-called digested fibers, consists mainly of hardly biodegradable material and comes at a low

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Ward, Amanda, H. David Stensel, John F. Ferguson, Gregory Ma, and Stan Hummel. "Effect of autothermal treatment on anaerobic digestion in the dual digestion process." Water Science and Technology 38, no. 8-9 (1998): 435–42. http://dx.doi.org/10.2166/wst.1998.0835.

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The performance of two laboratory mesophilic anaerobic digesters was studied to determine if the claims for improved mesophilic anaerobic digestion following autothermal pre-treatment are valid and if the benefits claimed are affected by the mesophilic digester SRT. One digester was fed sludge taken after a full-scale autothermal reactor and the other was fed sludge from the same plant just before the autothermal treatment unit. Autothermal treatment did not significantly increase volatile solids destruction kinetics during subsequent anaerobic digestion. The VS destruction rate was 2.7 to 2.8

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Noike, T., and J. Matsumoto. "Upgrading of Anaerobic Digestion Processes for Night Soil." Water Science and Technology 18, no. 7-8 (1986): 249–56. http://dx.doi.org/10.2166/wst.1986.0296.

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The upgrading of night soil anaerobic digestion processes was studied by field investigation of the performance of anaerobic digesters in existing night soil treatment plants and by serai-continuous experiments with bench-scale digesters. Both the average monthly amount of collected night soil fed to a digester and the concentration of volatile solids in night soil increased in winter. A good correlation was found to exist between gas production and digestion temperature. The COD removal rate in the first digester was markedly higher than that in the second digester. The stirring period in the

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