Article
Biotechnology & Applied Microbiology
Sun-Ki Kim, Jordan Russell, Minseok Cha, Michael E. Himmel, Yannick J. Bomble, Janet Westpheling
Summary: Caldicellulosiruptor species are hyperthermophilic, Gram-positive anaerobes capable of converting plant biomass to ethanol without pretreatment. Xylooligomers inhibit cellulase activity, with the addition of exogenous beta-D-xylosidase improving performance. The coexpression of thermal stable beta-D-xylosidase and xylanase in C. bescii strain enhances growth on xylan substrates.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Agricultural Engineering
Ryan G. Bing, Christopher T. Straub, Daniel B. Sulis, Jack P. Wang, Michel W. W. Adams, Robert M. Kelly
Summary: This study proposes a biorefinery process using metabolically engineered C. bescii to convert lignocellulosic biomass into green hydrogen and acetone, and demonstrates its feasibility through experimental validation.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Eneko Suarez, Montserrat Tobajas, Angel F. Mohedano, M. Angeles de la Rubia
Summary: This study evaluated the anaerobic co-digestion of food waste and garden and park waste, as well as the hydrothermal treatment of each waste and the anaerobic co-digestion of raw biowastes with process water. The results showed that anaerobic digestion was the best option for energy recovery from food waste, while the solid fraction generated from hydrothermal treatment had the highest energy recovery for garden and park waste. Additionally, the anaerobic co-digestion of food waste with process water improved process stability and achieved similar energy recovery to food waste alone.
Article
Engineering, Environmental
Siying Zhang, Chengyu Liang, Mengyao Xiao, Chunmeng Chui, Na Wang, Yuji Ji, Zhi Wang, Jiping Shi, Li Liu
Summary: To overcome the challenges of rapid acidification and inhibition of oil and salt in food waste (FW) anaerobic digestion, researchers investigated the potential of co-digestion with kitchen waste (KW) or garden waste (GW). The optimal ratios of FW:KW=60:40 and FW:GW=80:20 increased biogas production by 73.33% and 68.45% compared with single FW digestion, respectively. Co-digestion also improved the abundance of hydrolytic bacteria and methane-producing bacteria, as well as the production of vital carbohydrate-active enzymes.
Article
Green & Sustainable Science & Technology
Na Wang, Chunmeng Chui, Siying Zhang, Qianjing Liu, Baoguo Li, Jiping Shi, Li Liu
Summary: This study evaluated the potential of hydrogen production by thermophilic dry anaerobic co-fermentation of food waste with garden waste or kitchen waste as co-substrate. The results showed that using garden waste or kitchen waste as co-substrate has a greater potential than single-substrate fermentation to improve hydrogen production and the organic matter removal rate.
Review
Green & Sustainable Science & Technology
Christine Blanchard, Peter Harris, Celmara Pocock, Bernadette K. McCabe
Summary: Landfilling organic waste contributes to climate change. Local government is responsible for diverting domestic organic waste from landfill, but there is a lack of information in this area. Key knowledge gaps include the disconnect between state governments' policies and the lack of funding and community awareness on waste. This paper provides recommendations to enable regional councils to implement organic waste collection systems that are relevant and affordable for their communities.
Article
Engineering, Environmental
Yingjin Song, Shuyan Meng, Guanyi Chen, Beibei Yan, Yingxiu Zhang, Junyu Tao, Yihang Li, Jinlei Li
Summary: Anaerobic mono- and co-digestion of three feedstocks were studied for methane production, showing that co-digestion can alleviate acidification and improve buffering capacity. Different feedstock mixing ratios may result in synergistic or antagonistic effects.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Lamia Ben Gaida, Hana Gannoun, Laurence Casalot, Sylvain Davidson, Pierre-Pol Liebgott
Summary: The study demonstrates the production of biohydrogen using a mixture of onion waste juice and seawater as the carbon and energy source. The addition of inorganic nitrogen and iron sources improved the biohydrogen production, achieving high yields and productivity. The use of a fed-batch culture prevented substrate-associated growth inhibition.
COMPTES RENDUS CHIMIE
(2022)
Review
Biotechnology & Applied Microbiology
Erika J. Espinosa-Ortiz, Eldon R. Rene, Robin Gerlach
Summary: Fungi and bacteria co-exist in various environments where their interactions can range from antagonism to cooperation, influencing survival, colonization, distribution, and stress resistance. Mixed microbial communities composed of fungi and bacteria exhibit unique associations that can result in efficient degradation and removal of organic pollutants. Engineering artificial fungal-bacterial co-cultures presents key aspects and challenges, while offering future prospects for environmental remediation.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2022)
Article
Environmental Sciences
Xiaohan Wang, Xiaoli He, Jing Liang
Summary: This study used sequencing technology to investigate the presence and succession of microorganisms in compost piles of food waste digestate and garden waste. The results showed that the composting process significantly altered the composition of bacteria and fungi, with the highest biodiversity occurring in the thermophilic stage. The final compost products met the national standards for fertilizers. Cladosporium, Bacillus, and Saccharomonospora were identified as important indicators of a successful composting system.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Environmental Sciences
Nithin Raja Cherukuri, Purushothaman Parthasarathy
Summary: The improper disposal of food waste and garden waste results in a significant amount of waste being sent to landfills. This study evaluates different pretreatment processes for anaerobic digestion of food waste and its co-digestion with garden waste. The results show that thermal and extrusion pretreatment methods increase biogas production compared to conventional digestion, and the sequential hybrid pretreatment method yields the highest biogas production.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2023)
Article
Environmental Sciences
Priscila Liane Biesdorf Borth, Jessica Klarosk Helenas Perin, Arthur Ribeiro Torrecilhas, Nicole Caldas Pan, Emilia Kiyomi Kuroda, Fernando Fernandes
Summary: This study evaluated the influence of adding garden waste on the performance of food waste anaerobic digestion. The results showed that in specific conditions, adding garden waste did not positively impact methane production.
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
(2021)
Article
Environmental Sciences
Penghui Jia, Yimei Huang, Mengli Chen, Xiping Qi, Hongyang Hou
Summary: The addition of garden waste improved the physicochemical properties of SMS-CM co-compost, advanced the thermophilic period, increased the seed germination index, and enhanced the content of humic substances and humic acid.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agricultural Engineering
Siying Zhang, Mengyao Xiao, Chengyu Liang, Chunmeng Chui, Na Wang, Jiping Shi, Li Liu
Summary: This study investigated the effect of co-digestion of food waste (FW) with kitchen waste (KW) or garden waste (GW) on biogas production and organic loading rate. The results showed that co-digestion increased biogas production and improved the tolerance to higher organic loading rate by mitigating ammonia nitrogen inhibition and volatile fatty acids accumulation.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Miguel Casallas-Ojeda, Jonathan Soto-Paz, Wilfredo Alfonso-Morales, Edgar Ricardo Oviedo-Ocana, Dimitrios Komilis
Summary: A study on anaerobic co-digestion of food waste and garden waste was conducted using Artificial Neural Networks (ANN) and Particle Swarm Algorithm (PSO) to optimize the operating conditions, resulting in a 26% increase in methane yield.
ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL
(2021)
Article
Food Science & Technology
Claudia Amorim, Sara C. Silverio, Beatriz B. Cardoso, Joana Alves, Maria Alcina Pereira, Ligia R. Rodrigues
LWT-FOOD SCIENCE AND TECHNOLOGY
(2020)
Article
Microbiology
M. Salome Duarte, Andreia F. Salvador, Ana J. Cavaleiro, Alfons J. M. Stams, M. Alcina Pereira, M. Madalena Alves
ENVIRONMENTAL MICROBIOLOGY
(2020)
Review
Biotechnology & Applied Microbiology
A. ter Heijne, M. A. Pereira, J. Pereira, T. Sleutels
Summary: Microbial electrochemical technologies show promise for sustainable applications, with electron storage in electroactive biofilms (EABs) playing a crucial role in power output and efficiency. Understanding the mechanisms of electron storage, including reduction in redox active components and polymers, is essential for improving microbial electrochemical conversions and optimizing biotechnological processes.
TRENDS IN BIOTECHNOLOGY
(2021)
Article
Microbiology
Ana J. Cavaleiro, Ana P. Guedes, Sergio A. Silva, Ana L. Arantes, Joao C. Sequeira, Andreia F. Salvador, Diana Z. Sousa, Alfons J. M. Stams, M. Madalena Alves
Article
Engineering, Environmental
Rita M. Silva, Ana M. Fernandes, Francesca Fiume, Ana Rita Castro, Raul Machado, Maria Alcina Pereira
Summary: This study demonstrates the biological treatment of mineral oil wastewaters using sequential batch airlift reactors, coupled with the production of bacterial lipids. The TPH removal efficiencies reached up to 96% and 80% for different bacterial strains. The production of intracellular lipids varied under different conditions, with triacylglycerols being the main intracellular lipid accumulated.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Green & Sustainable Science & Technology
Salome M. Duarte, Erika Sinisgalli, Ana J. Cavaleiro, Lorenzo Bertin, M. Madalena Alves, M. Alcina Pereira
Summary: This study demonstrates that biogas recirculation in the biogas-lift bioreactor facilitated the degradation of waste frying oils, most likely due to the selective enrichment of hydrogenotrophic methanogens.
Article
Food Science & Technology
Claudia Amorim, Beatriz B. Cardoso, Sara C. Silverio, Jessica C. Silva, Joana Alves, Maria Alcina Pereira, Ramon Moreira, Ligia R. Rodrigues
Summary: This study explores the use of prebiotic supplementation and sugar reduction in pastry products to increase their nutritional and commercial value. The results show that both commercial agave inulin and galacto-oligosaccharides have prebiotic potential, with differences in their effects on gut microbiota. The modified muffins with reduced sugar content showed comparable texture parameters to commercial ones, indicating good consumer acceptance.
Article
Energy & Fuels
Bruno P. Morais, Valdo Martins, Gilberto Martins, Ana Rita Castro, Maria Madalena Alves, Maria Alcina Pereira, Ana J. Cavaleiro
Summary: Hydrocarbons from the oil and gas industry can be effectively treated through anaerobic digestion to produce biogas. However, the toxicity of hydrocarbons towards methanogens may inhibit methane production, especially at concentrations above 15mM hexadecane. Further studies indicate that anaerobic treatment systems still have potential for methane production from oily waste/wastewater despite the presence of hydrocarbons.
Correction
Engineering, Environmental
M. Salome Duarte, Sergio A. Silva, Andreia F. Salvador, Ana J. Cavaleiro, Alfons J. M. Stams, M. Madalena Alves, M. Alcina Pereira
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
R. M. Silva, A. A. Abreu, A. F. Salvador, M. M. Alves, I. C. Neves, M. A. Pereira
Summary: This study investigated thermophilic biohydrogen production through dark fermentation using a mix of C5 and C6 sugars and Sargassum sp. biomass. The addition of zeolite in the biological processes showed a positive impact on hydrogen yield and production rate. The presence of zeolite in both batch and continuous reactor experiments led to an increase in hydrogen titer and yields, indicating its potential for enhancing biohydrogen production processes.
SCIENTIFIC REPORTS
(2021)
Article
Microbiology
Valdo R. Martins, Carlos J. B. Freitas, A. Rita Castro, Rita M. Silva, Eduardo J. Gudina, Joao C. Sequeira, Andreia F. Salvador, M. Alcina Pereira, Ana J. Cavaleiro
Summary: The cork-based biosorbent corksorb enhances growth and alkane degradation by hydrogenase bacteria, without affecting the expression of genes involved in alkane uptake and degradation. The presence of corksorb increases metabolic activity and cell attachment, ultimately improving the activity of the bacteria for in situ bioremediation in marine oil spills.
FRONTIERS IN MICROBIOLOGY
(2021)
Review
Engineering, Environmental
B. Conall Holohan, M. Salome Duarte, M. Alejandra Szabo-Corbacho, Ana J. CavaleiroAna, Andreia F. Salvador, M. Alcina Pereira, Ryan M. ZielsRyan, Carla T. M. J. Frijters, Santiago Pacheco-Ruiz, Marta Carballa, Diana Z. Sousa, Alfons J. M. Stams, Vincent O'Flaherty, Jules B. van Lier, M. Madalena Alves
Summary: Lipids in wastewater treatment plants pose challenges, but can be effectively treated using appropriate strategies and technologies. Understanding microbial communities and interactions enhances understanding of lipid degradation in anaerobic reactors.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Environmental Sciences
M. Salome Duarte, Gilberto Martins, Pedro Oliveira, Bruno Fernandes, Eugenio C. Ferreira, M. Madalena Alves, Frederico Lopes, M. Alcina Pereira, Paulo Novais
Summary: Wastewater treatment companies are facing challenges in energy efficiency optimization, meeting stricter water quality standards, and resource recovery potential. Computational models have been recognized as effective tools for addressing these challenges and improving economic and operational efficiencies of wastewater treatment plants. Deterministic, stochastic, and time series-based models have been developed to predict the performance of wastewater treatment plants. Mechanistic models, although dominant, may introduce model structure uncertainty and require frequent calibration. Data-driven models, which search for relationships in available data, are becoming more attractive with the increasing amount of data. This review discusses the implementation of machine learning models for predicting WWTP effluent characteristics, wastewater inflows, anomaly detection, and energy consumption optimization. Hybrid models, merging mechanistic and machine learning models, are presented as a promising approach. The review also assesses gaps and future directions in the implementation of mathematical modeling in wastewater treatment processes, focusing on explainability of data-driven models and the use of Transfer Learning processes.
Article
Biotechnology & Applied Microbiology
Rita M. Silva, Ana Rita Castro, Raul Machado, Maria Alcina Pereira
Summary: This study investigated the effect of dissolved oxygen concentration on the production of storage compounds by Alcanivorax borkumensis SK2. It was found that the variation in DO concentration can influence the bacterial metabolism pathway, leading to different types of produced compounds. The results show that selecting the appropriate DO concentration during PW treatment can enhance the production rate of valuable compounds while maintaining high efficiency of hydrocarbon removal.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
