Article
Biotechnology & Applied Microbiology
Maria Paula C. Volpi, Antonio Djalma N. Ferraz Junior, Telma T. Franco, Bruna S. Moraes
Summary: This study utilized semi-continuous stirred tank reactor for co-digestion of vinasse, filter cake, and deacetylation liquor to optimize operational parameters for methane production. Through microbial community comparison and adjustment of organic load rates, stable methane production was achieved.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2021)
Article
Energy & Fuels
Rocio Auxiliadora Lopez, Miriam Tena, Rosario Solera, Montserrat Perez
Summary: This study aimed to energetically valorize sludge from wastewater treatment plants and discharges from the wine sector through anaerobic co-digestion. Two different processes, single-stage mesophilic anaerobic digestion and Temperature-Phased Anaerobic Digestion (TPAD), were employed for the valorization. Biodegradability tests were conducted to determine the methane production yield, and the results showed that the single-stage process was more effective in methane generation compared to the TPAD process.
Article
Environmental Sciences
K. Bella, P. Venkateswara Rao
Summary: The study investigated the improvement of anaerobic digestion of cheese whey waste and found that septage is an excellent co-substrate. The highest biogas production was achieved with cattle manure inoculated mixture at 60% whey fraction.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Environmental Sciences
Camila Aparecida de Menezes, Priscilla de Souza Almeida, Franciele Pereira Camargo, Tiago Palladino Delforno, Valeria Maia de Oliveira, Isabel Kimiko Sakamoto, Maria Bernadete Amancio Varesche, Edson Luiz Silva
Summary: The study assessed the co-digestion of sugarcane vinasse and glycerol in a thermophilic anaerobic fluidized bed reactor. Increasing the organic loading rate had a positive effect on methane production, reaching the highest rate at 20 kg COD m-3 d-1. The presence of sulfate did not impact methane yield due to glycerol addition, and certain bacteria and archaea were identified in the process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Seyed Sajad Hashemi, Keikhosro Karimi, Mohammad J. Taherzadeh
Summary: This study examined the potential of producing protein-rich fungal biomass and biomethane from vinasse and whey through a two-stage biorefinery. The fungal biomass contained comparable protein content and essential amino acid contents to commercial sources of protein for aquatic feed. The effluent of fungal cultivation produced a significant amount of protein and biomethane, along with COD removal.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Biotechnology & Applied Microbiology
Jack Rincon-Perez, Lourdes B. Celis, Marcia Morales, Felipe Alatriste-Mondragon, Aida Tapia-Rodriguez, Elias Razo-Flores
Summary: The study found that under anaerobic conditions, microalgal hydrolysate can be co-digested with cheese whey to increase methane production. Methane content was higher at alkaline pH, but the methane yield from co-digestion was similar to that at neutral pH.
BIOCHEMICAL ENGINEERING JOURNAL
(2021)
Article
Agricultural Engineering
Renisha Karki, Wachiranon Chuenchart, K. C. Surendra, Shihwu Sung, Lutgarde Raskin, Samir Kumar Khanal
Summary: Anaerobic mono- and co-digestion of coffee pulp, cattle manure, food waste, and dewatered sewage sludge were evaluated using biochemical methane potential tests. Mono-digestion of coffee pulp and food waste yielded higher methane yields compared to the co-digestion ratios examined, with no synergistic or antagonistic effects observed. Nine different kinetic models were compared, with cone and modified Gompertz models identified as best-fit for mono- and co-digestion of coffee pulp and cattle manure, and superimposed model for food waste and dewatered sewage sludge.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Paula Yumi Takeda, Cristiane Arruda Oliveira, Maria Eduarda Simoes Dias, Carolina Tavares Paula, Andre do Vale Borges, Marcia Helena Rissato Zamariolli Damianovic
Summary: Anaerobic co-digestion using glycerol in the off-season and vinasse in the harvest season can improve the performance and energy recovery of anaerobic systems. It can increase energy generation by approximately 17.5% in the sugarcane biorefinery and ensure system stability.
Article
Engineering, Environmental
Moara Yuri Utino Barbosa, Inae Alves, Valeria Del Nery, Isabel Kimiko Sakamoto, Eloisa Pozzi, Marcia Helena Rissato Zamarioll Damianovic
Summary: This study investigates operational strategies for restarting a UASB reactor after a feeding interruption. The results suggest that restarting the reactor is a more suitable method than replacing vinasse with sugarcane molasses to maintain methane production.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Review
Chemistry, Physical
Leonor Sillero, Rosario Solera, Montserrat Perez
Summary: The influence of adding poultry manure on the thermophilic acid co-fermentation of sewage sludge and wine vinasse was investigated. Tests were conducted with different amounts of poultry manure to determine the hydrogen production potential. The results showed that the best performance and yield were obtained with 10 g/L of poultry manure. However, higher amounts of poultry manure resulted in poorer purification behavior and performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Afsane Sedighi, Mohsen Karrabi, Bahar Shahnavaz, Morteza Mostafavinezhad
Summary: This study investigated the potential for biogas production from anaerobic codigestion of the organic fraction of municipal solid waste and sewage sludge under mesophilic conditions. The results showed that the best outputs were achieved at TS = 5% and ISR = 2, with the highest biogas yield and methane production.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Environmental Sciences
M. J. Fernandez-Rodriguez, N. F. Puntano, J. M. Mancilla-Leyton, R. Borja
Summary: This study investigated the production of green energy from spent livestock bedding, showing that co-digestion of goat straw bedding and whey can produce biochemical methane potential. Results indicated a decrease in maximum methane production rate and considerable increases in hydrolysis kinetic constants with increased whey concentration.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Leonor Sillero, William Gustavo Sganzerla, Tania Forster Carneiro, Rosario Solera, Montserrat Perez
Summary: This study assessed the application of anaerobic co-digestion technology in the treatment of sewage sludge, wine vinasse, and poultry manure. The TPAD process, which utilizes temperature phases, was found to have the highest electricity and heat production with the lowest manufacturing costs.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Engineering, Environmental
Ligong Wang, Hongyan Zhang, Zhuangqiang Dai, Yi Liu, Chang Chen, Guangqing Liu
Summary: The study demonstrated that a nicotine concentration higher than 4% can inhibit anaerobic digestion, but the nicotine content in tobacco stalks is lower than this inhibitory level. Co-digestion of pretreated tobacco stalks and pig manure showed the highest methane production and exhibited a synergistic effect.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Agricultural Engineering
Yuanfang Deng, Jun Xia, Rui Zhao, Xiaoyan Liu, Jiaxing Xu
Summary: The application of iron-modified biochar in high organic loading co-digestion promoted methane production, enhanced buffering capacity, and enriched specific microbial populations. Additionally, the addition of iron-modified biochar accelerated substrate hydrolysis and volatile fatty acids consumption.
BIORESOURCE TECHNOLOGY
(2021)
Article
Green & Sustainable Science & Technology
Giovanna Lovato, Adam Kovalovszki, Merlin Alvarado-Morales, Arnaud Tristan Arjuna Jeglot, Jose Alberto Domingues Rodrigues, Irini Angelidaki
Summary: Bioaugmentation is a promising method to improve the performance of sub-optimal anaerobic digestion processes and recover methane production. This study implemented a model with bioaugmentation functionalities for the dynamic microbiological study of augmented anaerobic systems. Simulation results showed that bioaugmentation will result in process improvement when specialized hydrogenotrophs are used.
Article
Chemistry, Physical
Giovanna Lovato, Isabela Mehi Gaspari Augusto, Antonio Djalma Nunes Ferraz Junior, Roberta Albanez, Suzana Maria Ratusznei, Claudia Etchebehere, Marcelo Zaiat, Jose Alberto Domingues Rodrigues
Summary: The study evaluated three different start-up strategies for hydrogen production from thermophilic dark fermentation, with strategy (iii) increasing hydrogen productivity by 39% compared to the others. The combination of high temperature and low pH favored hydrogen-producing routes, potentially boosted by synergy between different bacteria. A total of three 41 m(3) reactors would be needed to treat 3.4 x 10(3) m(3) year(-1) of whey in small-size dairy industry, with the energy produced reaching 14 MWh month(-1).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Green & Sustainable Science & Technology
Lucas Rodrigues Ramos, Giovanna Lovato, Jose Alberto Domingues Rodrigues, Edson Luiz Silva
Summary: This study evaluates the full-scale vinasse anaerobic digestion for industrial application and compares the energy recovery of different scenarios. The results show that a two-stage system, using the methanogenic reactor effluent to dilute vinasse, achieves at least 34% higher energy recovery than a single-stage system. This study provides practical recommendations for decision makers in the sugarcane industry to find the optimal balance between energy production and COD removal.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Energy & Fuels
Lia Paula Poloni Batista, Ana Paula Paulinetti, Antonio Djalma Nunes Ferraz Jr, Roberta Albanez, Suzana Maria Ratusznei, Claudia Etchebehere, Giovanna Lovato, Jose Alberto Domingues Rodrigues
Summary: The goal of this study was to compare the efficiency of a single-stage and two-stage system for anaerobic digestion and bioenergy production using a sequencing batch and fed-batch biofilm reactor. The results showed that the single-stage system achieved better performance with high organic matter removal, methane productivity, and yield. Temperature also influenced the microbial community diversity and the abundance of Methanosarcina genus.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Engineering, Environmental
Thalita Gouveia Castilho, Jose Alberto Domingues Rodrigues, Joan Garcia, Eduardo Lucas Subtil
Summary: In recent years, research has shown that the addition of conductive materials can significantly improve anaerobic digestion and methane production. However, there are still questions regarding the mechanism and impact of material properties on methanogenic pathways. A systematic review and statistical analysis of recent studies found that the use of conductive materials is associated with changes in the microbial community and that millimeter-scale materials may be more effective in increasing methane production. Overall, the use of conductive materials shows promise in improving anaerobic digestion and methane production.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Environmental Sciences
Priscilla de Souza Almeida, Camila Aparecida de Menezes, Franciele Pereira Camargo, Isabel Kimiko Sakamoto, Giovanna Lovato, Jose Alberto Domingues Rodrigues, Maria Bernadete Amancio Varesche, Edson Luiz Silva
Summary: This study aimed to evaluate the co-digestion of cheese whey and glycerol in a two-stage process using fluidized bed reactors. The mesophilic methanogenic reactor showed higher tolerance to high organic loading rate (OLR) and achieved the best performance at 20 g-COD.L-1.d-1. A greater diversity of microorganisms was identified in R-Meso compared to R-Thermo. The two-stage system, consisting of a thermophilic acidogenic reactor and R-Meso, was more suitable for the co-digestion process, leading to improved energetic yield and organic matter removal.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Thermodynamics
Ana Paula Paulinetti, Lia Paula Poloni Batista, Carolina Zampol Lazaro, Roberta Albanez, Suzana Maria Ratusznei, Giovanna Lovato, Jose Albert Domingues Rodrigues
Summary: This study investigated methane production from soybean molasses anaerobic digestion and evaluated the impact of different factors on system stability and performance. The best results were achieved with a fed-batch mode, fill time of 180 min at 30 degrees C, and an organic loading rate of 14.9 kg-COD/m3/d. The study also estimated the scale-up requirements and investment needed for industrial implementation.
Article
Engineering, Environmental
Farinaz Ebrahimian, Giovanna Lovato, Merlin Alvarado-Morales, Muhammad Tahir Ashraf, Jose Alberto Domingues Rodrigues, Panagiotis Tsapekos, Irini Angelidaki
Summary: This study examined the effect of trace metals on H2/CO2 biomethanation, finding that they are crucial for efficient methane production. During nutrient deprivation, the suppression of hydrogenotrophic archaea at higher gas rates led to a decrease in methane content and an increase in acetic acid concentration. After nutrient supplementation, increased concentrations of Co, Ni, and Fe were found to enhance methanogenic activity, resulting in high methane content and low acetic acid concentration. Mathematical modeling demonstrated that iron limitation suppressed hydrogenotrophic archaea, leading to hydrogen accumulation and the growth of homoacetogenic bacteria.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Environmental Sciences
Priscilla de Souza Almeida, Camila Aparecida de Menezes, Isabela Mehi Gaspari Augusto, Ana Paula Paulinetti, Giovanna Lovato, Jose Alberto Domingues Rodrigues, Edson Luiz Silva
Summary: This study analyzed the technical and economic feasibility of waste co-digestion and two-stage systems for the production of hydrogen and methane. The results showed that high-temperature single-stage systems and high-temperature/medium-temperature two-stage systems were more compact and required lower initial investment. Risk analysis revealed low investment risks, with electricity sales price being the key determining factor. Factorial design showed that rising inflation and electricity sales price positively affected the net present value, while rising capitalization rate had a negative impact.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)