Results 11 to 20 of about 3,114 (198)

Acidogenesis is a key step in the anaerobic biotransformation of organic micropollutants [PDF]

Journal of Hazardous Materials, 2020
Understanding the role of the different anaerobic digestion stages on the removal of organic micropollutants (OMPs) is essential to mitigate their release from wastewater treatment plants. This study assessed the fate of 21 OMPs during hydrolysis and acidogenesis to elucidate the contribution of these stages to the overall anaerobic removal.
Rodrigo B. Carneiro, Lorena Gonzalez-Gil, Yudy Andrea Londoño, Marcelo Zaiat, Marta Carballa, Juan M. Lema   +5 more
openaire   +5 more sources

Solubilization of Particulate Cellulose Using Anaerobic Acidogenesis

Water Science and Technology, 1992
Hydrolysis and acidogenesis in anaerobic digestion comprises the first step in converting biodegradable particulates into methane gas. The optimum conditions in this stage are different from those for methanogenesis. Results of tests to solubilize organic particulates of a known size distribution are presented and discussed here.
A. D. Levine, Y. T. Chyi
openaire   +2 more sources

Evaluation of acidogenesis products’ effect on biogas production performed with metagenomics and isotopic approaches [PDF]

Biotechnology for Biofuels, 2021
Background During the acetogenic step of anaerobic digestion, the products of acidogenesis are oxidized to substrates for methanogenesis: hydrogen, carbon dioxide and acetate. Acetogenesis and methanogenesis are highly interconnected processes due to the
Anna Detman, Michał Bucha, Laura Treu, Aleksandra Chojnacka, Łukasz Pleśniak, Agnieszka Salamon, Ewa Łupikasza, Robert Gromadka, Jan Gawor, Agnieszka Gromadka, Wojciech Drzewicki, Marta Jakubiak, Marek Janiga, Irena Matyasik, Mieczysław K. Błaszczyk, Mariusz Orion Jędrysek, Stefano Campanaro, Anna Sikora   +17 more
doaj   +5 more sources

Influence of substrate freshness on metabolite dynamics and methane emissions from pig slurry during laboratory incubation. [PDF]

J Environ Qual
Abstract Freeze/thaw pretreatment is commonly applied to animal slurry samples in laboratory studies, but its impact on organic matter transformation and methane (CH4) emissions remains uncertain. In this study, slurry incubations were performed at 20°C with three treatments differing in freshness of feces, urine, and inoculum.
Wang R, Hansen MJ, Hafner SD, Dalby FR.
europepmc   +2 more sources

Subsurface Injection of Distillation Tail Liquor at the Acidogenesis-to-Esterification Transition and Its Effects on Ester Profiles in Strong-Flavor Baijiu

Fermentation
In strong-flavor Baijiu brewing, surface spraying of recycled distillation tail liquor (TL) leads to volatile aroma loss, uneven substrate distribution and localized fermentation inhibition.
Daolei Zhang, Rongxin Zhang, Yueming Lv, Guang Yang, Jian Zhao, Xianqin Lu   +5 more
doaj   +2 more sources

Investigation of phase equations for anaerobic digestion process of anaerobic bioreactor landfill [PDF]

E3S Web of Conferences, 2020
The anaerobic digestion process consists of four phases hydrolysis, acidogenesis, acetogenesis and methanogenesis. In the present work anaerobic digestion process of waste from anaerobic bioreactor landfill is considered and leachate is analyzed ...
Shinde Priyanka R., Mali Sandip. T.
doaj   +1 more source

Integration of Dark Fermentation with Microbial Electrolysis Cells for Biohydrogen and Methane Production from Distillery Wastewater and Glycerol Waste Co-Digestion

Fermentation, 2022
This study aimed to enhance dark fermentative hydrogen production from co-digestion of distillery wastewater (DW) and glycerol waste (GW) through integration with microbial electrolysis cells.
Sureewan Sittijunda, Sulfan Baka, Rattana Jariyaboon, Alissara Reungsang, Tsuyoshi Imai, Prawit Kongjan   +5 more
doaj   +1 more source

Co-production of biohydrogen and biomethane utilizing halophytic biomass Atriplexcrassifolia by two-stage anaerobic fermentation process

Frontiers in Chemistry, 2023
The excessive use of fossil has resulted in the drastic exhaustion of natural energy sources, leading to environmental challenges and energy crises.
Ali Nawaz, Ali Nawaz, Farheen Aamir, Rong Huang, Ikram ul Haq, Fangyu Wu, Marium Munir, Rida Chaudhary, Ayesha Rafique, Kankan Jiang   +9 more
doaj   +1 more source

Methods of Pretreating Raw Materials Containing Organic Compounds before Anaerobic Digestion

Инженерные технологии и системы, 2022
Introduction. The volume of accumulated organ-containing non-recyclable waste products in Russia is increasing. Existing technologies make it possible to recycle these waste products through using anaerobic digestion to produce biogas and fertilizers ...
Viktor V. Palvinskiy, Filipp A. Vasilev, Victor K. Evteev   +2 more
doaj   +1 more source

Hydrogen as a Co-electron Donor for Chain Elongation With Complex Communities

Frontiers in Bioengineering and Biotechnology, 2021
Electron donor scarcity is seen as one of the major issues limiting economic production of medium-chain carboxylates from waste streams. Previous studies suggest that co-fermentation of hydrogen in microbial communities that realize chain elongation ...
Flávio C. F. Baleeiro, Flávio C. F. Baleeiro, Sabine Kleinsteuber, Heike Sträuber   +3 more
doaj   +1 more source