Article
Biotechnology & Applied Microbiology
Abbas Shevidi, Javier Lizasoain, Bernhard Wlcek, Susanne Fruehauf, Andreas Gronauer, Alexander Bauer
Summary: This study evaluated the biogas production from steam-exploded maize stover in continuously stirred tank reactors. Results showed that using steam-exploded maize stover at an organic loading rate (OLR) range of 1.0 to 3.5 kg VS m(-3) d(-1) with nitrogen as an additive was feasible. The highest methane yield of 637 L-N m(-3) d(-1) was achieved under thermophilic conditions with an OLR of 3.5 kg VS m(-3) d(-1). Gas production rate increased with increasing OLR, and the average gas yield was higher in the thermophilic mode compared to the mesophilic one.
FERMENTATION-BASEL
(2023)
Article
Energy & Fuels
Bernd Weber, Isis D. Ayala-Mercado, Ernst A. Stadlbauer
Summary: Semi-solid wastes from the beverage industry can be partially converted into the liquid phase using hydrothermal carbonization or steam explosion. The methane release in anaerobic batch assays of these extracts depends on the pretreatment and substrate, with steam explosion being more effective than hydrothermal carbonization. The combination of both processes can lead to energy recovery from agro-industrial wastes.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Biotechnology & Applied Microbiology
Nalok Dutta, Richard Garrison, Muhammad Usman, Birgitte Kiaer Ahring
Summary: This study investigated the effects of Advanced Wet Oxidation & Steam Explosion (AWOEx) pretreatment on the methane yield of sewage sludge anaerobic digestion. The results showed that AWOEx pretreatment significantly increased methane production. Temperature and oxygen dosage had a significant impact on methane yield, while residence time had a lower importance. The two-step AD process achieved a significant improvement in methane yield compared to conventional AD, with decreased organic content and reduced treatment costs.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Chemistry, Multidisciplinary
Pranshu Bhatia, Masaaki Fujiwara, Maria Cecilia D. Salangsang, Jun Qian, Xin Liu, Syuhei Ban, Mitsuyuki Myojin, Tatsuki Toda
Summary: The study focused on semi-continuous anaerobic digestion of lignin-rich steam-exploded Ludwigia grandiflora to enhance biogas production. Steam explosion pretreatment improved substrate solubilisation and ultimately led to increased biogas yield, demonstrating the potential for efficient degradation of lignocellulosic biomass.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Marina Mistretta, Teresa Maria Gulotta, Paola Caputo, Maurizio Cellura
Summary: This study evaluates the energy and environmental performances of electricity generated from Italian anaerobic digestion coupled with combined heat and power plants. It finds that small and medium plants mainly fed by organic by-products have the lowest impacts. Compared to electricity from the grid, biogas electricity has the lowest contribution in some impact categories and largest in others. In terms of global warming potential and cumulative energy demand, the impacts of biogas electricity are about 35% and 38% of that generated by the grid.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Food Science & Technology
Fachun Wan, Chengfeng Feng, Kaiyun Luo, Wenyu Cui, Zhihui Xia, Anwei Cheng
Summary: This review provides a comprehensive summary of the application of steam explosion (SE) in food pretreatment and its effects on phenolic compounds. SE can increase the release of phenolics and enhance their antioxidant activity. Different forms of phenolics exist in the plant matrix, including free and bound forms. The temperature/pressure and residence time during SE processing are the main factors affecting phenolic extraction and conversion. SE can break down glycosidic and ester bonds, increasing the content of carboxyl and phenolic hydroxyl groups.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2022)
Review
Biotechnology & Applied Microbiology
Amine Ezzariai, Mohamed Hafidi, Widad Ben Bakrim, Mulugeta Kibret, Fadoua Karouach, Mansour Sobeh, Lamfeddal Kouisni
Summary: Water hyacinth is an invasive plant that grows rapidly and occupies freshwater bodies, posing challenges for many countries. This review describes the global distribution of water hyacinth and its social, economic, and environmental impacts, while evaluating biotechnologies for producing biofertilizer and bioenergy from water hyacinth and suggesting future perspectives.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Agricultural Engineering
Pengfei Li, Xinyu Wei, Ming Wang, Di Liu, Jie Liu, Zhanjiang Pei, Fengmei Shi, Su Wang, Xin Zuo, Dan Li, Hongjiu Yu, Nan Zhang, Qiuyue Yu, Yifei Luo
Summary: In this study, an extended Anaerobic Digestion Model No.1 was established to simulate the anaerobic co-digestion of steam explosion pulping wastewater and cattle manure. The model was calibrated and recalibrated using batch and semi-continuous experimental data. Results showed that the model accurately predicted the methanogenic behavior of all experimental treatments and matched the methane production results in the stable and high furfural loading stages. Additionally, the study revealed that the semi-continuous system tolerated furfural better than the batch system.
BIORESOURCE TECHNOLOGY
(2023)
Article
Environmental Sciences
Yujing Wang, Jingjing Fang, Fan Lu, Hua Zhang, Pinjing He
Summary: Food waste management is a global issue, and anaerobic digestion is a sustainable technology for treating food waste. This study investigated odor characteristics and health risks in different workshops of food waste AD plants. Ethanol was found to be the dominant odorant, while methanethiol, propanethiol, H2S, and acetaldehyde were the major contributors. Carcinogenic and non-carcinogenic risks, mainly caused by acetaldehyde, H2S, and ethyl acetate, were identified in these plants. Based on assessments, control strategies for odor and pollution in food waste AD plants were proposed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agricultural Engineering
Seyedbehnam Hashemi, Linn Solli, Roald Aasen, Jacob J. Lamb, Svein Jarle Horn, Kristian M. Lien
Summary: In this study, steam-exploded birch wood (SEBW) was delignified using a pretreatment method involving Fenton reaction (FR) and fungi. Optimal Fe(III) and Fe(II) dosages in FR were determined to achieve maximum iron-binding to SEBW. Enzymatic pretreatment using a commercial cellulase cocktail improved methane production rate, while pretreatments with fungi Pleurotus ostreatus (PO) and Lentinula edodes (LE) showed greater enhancement in methane production yield.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Rosa Marchetti, Ciro Vasmara, Anna Orsi
Summary: The specialized inoculum obtained from raw pig slurry showed higher performance in anaerobic digestion compared to commonly used digestates, with higher specific methanogenic activity and methane yield. The inoculum maintained its AD performance almost unchanged for a prolonged storage period. The residual liquid from inoculum production contains nutrients that can be reused as fertilizer.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Engineering, Environmental
Nalok Dutta, Anthony T. Giduthuri, Muhammand Usman Khan, Richard Garrison, Birgitte K. Ahring
Summary: This study examines the potential of the Advanced Wet Oxidation & Steam Explosion process (AWOEx) in improving the carbon conversion efficiency (CCE) of sewage sludge. It suggests that the AWOEx pretreatment can significantly increase methane yield and contribute to the circular economy.
Article
Chemistry, Physical
S. S. Timofeeva, J. V. Karaeva, A. A. Kovalev, D. A. Kovalev, Yu. V. Litti
Summary: This study investigates the possibility of using steam gasification of digestates after anaerobic digestion and dark fermentation to obtain syngas with high hydrogen content. The syngas from digestates after dark fermentation has a high H2/CO ratio, making it promising for conversion to liquid fuel through Fischer-Tropsch synthesis. This research is significant for the processing of agricultural industrial waste and the production of high value-added products.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Agricultural Engineering
Masaaki Fujiwara, Mitsuhiko Koyama, Shinichi Akizuki, Syuhei Ban, Tatsuki Toda
Summary: This study found that the chemical composition and anaerobic digestibility of aquatic weeds differ from terrestrial plants. The amount and ratio of lignocellulosic components (cellulose, hemicellulose, and lignin) have significant effects on the anaerobic digestion process. While cellulose can be degraded and converted to methane, the presence of lignin and xylose limits the degradability of cellulose, thus regulating methane production from aquatic weeds.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Green & Sustainable Science & Technology
Gideon Sarpong, Veera Gnaneswar Gude
Summary: The wastewater treatment industry aims to become energy self-sufficient or energy positive by recovering energy from wastewater. This paper presents an energy performance analysis considering energy efficiency and recovery mechanisms. The study highlights the importance of carbon capture enhancement and codigestion in enhancing biogas production.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Environmental Sciences
Shiqi Zhou, Jin Wang, Shuchuan Peng, Tianhu Chen, Zhengbo Yue
Summary: In this study, a laboratory-scale up-flow anaerobic sludge blanket (UASB) reactor was used to treat landfill leachate and acid mine drainage. The system showed significant efficiency in COD and sulfate removal at an HRT of 20 hours. Competition between methane production and sulfate reduction processes was observed in the reactor, and metal fractionation in the sludge aided in metal recovery in later stages.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Rui Tang, Guangxue Wu, Zhengbo Yue, Wei Wang, Xinmin Zhan, Zhen-Hu Hu
ENVIRONMENTAL POLLUTION
(2020)
Article
Energy & Fuels
Ding Ma, Hongwen Gao, Jin Wang, Zhengbo Yue
Summary: This study found that goethite can promote methane production and COD removal efficiency, with a more significant effect under acidic conditions. The mechanism of goethite's action mainly involves inhibiting acetate generation and increasing butyrate production to maintain stable pH in reactors.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Review
Engineering, Environmental
Rui Tang, Yulan Wang, Shoujun Yuan, Wei Wang, Zhengbo Yue, Xinmin Zhan, Zhen-Hu Hu
Summary: Aromatic organoarsenicals used in animal feeding operations lead to arsenic contamination in livestock wastewater and manure, increasing the risk of surface water pollution. Biological wastewater treatment processes are crucial for removing these compounds. Research on organoarsenic removal and biotransformation focuses on functional microorganisms and genes, as they impact water security and microbial activity in bioreactors.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Zhixiang She, Jin Wang, Chen He, Xin Pan, Yunyun Li, Siyu Zhang, Quan Shi, Zhengbo Yue
Summary: The study revealed a highly stratified quality of dissolved organic matter (DOM) in acid mine drainage (AMD), linked with severe biogeochemical gradients. DOM molecules exhibited significant differences across different layers, influenced by material exchange with sediments at the bottom.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Environmental Sciences
Zhipeng Dai, Lu Zhao, Shuchuan Peng, Zhengbo Yue, Xinyuan Zhan, Jin Wang
Summary: This study demonstrates the significant impact of manganese doping on the surface electronic structure of biochar, enhancing the removal efficiency of oxytetracycline and accelerating electron transfer. Manganese doping promotes the formation of free radicals and increases ionization of biochar, providing new insights into the regulation of surface electronic structures by transition metal elements.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Green & Sustainable Science & Technology
Ding Ma, Jin Wang, Jun Xue, Zhengbo Yue, Shaofeng Xia, Lei Song, Hongwen Gao
Summary: This study investigated the effects of soil pH on Feammox pathways and microbial communities, revealing significant differences in gaseous N loss pathways under different pH conditions, with Feammox to N-2 being the predominant pathway at low pH. Fe-reducing bacteria such as Ochrobactrum, Sphingomonas, and Clostridium increased significantly in lower pH incubations.
Article
Environmental Sciences
Zong-Bin Zhang, Zhou-Hua Cheng, Jing-Hang Wu, Zheng-Bo Yue, Jin Wang, Dong-Feng Liu
Summary: This study engineered a salt-tolerant strain to enhance its ability to degrade pollutants and generate electricity, providing a new strategy for treating salt-containing industrial wastewater contaminated by metal and organic pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Rui Tang, Haiping Luo, Henning Prommer, Zhengbo Yue, Wei Wang, Kuizu Su, Zhen-Hu Hu
Summary: The extensive use of organoarsenic feed additives has led to the occurrence of organoarsenicals in livestock wastewater and anaerobic wastewater treatment systems. The long-term impact of roxarsone on Anaerobic Granular Sludge (AGS) activity has been investigated in this study, revealing a significant reduction in methane production initially, with eventual restoration. The study also found that roxarsone exposure stimulated the excretion of extracellular polymeric substances and surface spalling of AGS, while altering microbial pathways and inhibiting specific methanogen species before full restoration of methane production.
Article
Engineering, Environmental
Zhixiang She, Xin Pan, Jin Wang, Rui Shao, Guangcheng Wang, Shaoping Wang, Zhengbo Yue
Summary: Acid mine drainage (AMD) lakes exhibit tight geochemical gradients in the water column, resulting in significant changes in prokaryotic microbial community structure and increased diversity with depth. Heterogeneous selection is the main assembly process in the surface water, while stochastic processes become more important with depth.
Article
Engineering, Environmental
Xinyuan Zhan, Li'ao Wang, Jin Wang, Zhengbo Yue, Rui Deng, Yan Wang, Xiaowei Xu
Summary: In this study, a low-aluminum-silicon lightweight ceramisite was successfully prepared as a replacement for traditional lightweight aggregates. The resulting ceramisite met the requirements of commercial lightweight aggregates and posed no harm to the environment and human health.
Article
Environmental Sciences
Ding Ma, Jin Wang, Hao Li, Jian Che, Zhengbo Yue
Summary: In this study, an up-flow anaerobic biological filter based on limonite was developed for the treatment of domestic sewage. The filter achieved high removal efficiency of COD and NH4+-N, with a remarkable difference in microbial community structure among different layers. The study also found the occurrence of the Fe(III)/Fe(II) redox cycle triggered by the Feammox and NDFO processes.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Zhixiang She, Xin Pan, Zhengbo Yue, Xiufeng Shi, Yijun Gao, Shaoping Wang, Xin Chuai, Jin Wang
Summary: Acid mine drainage (AMD) represents an extreme environment to life and is a global environmental challenge. This study examined the microbial diversity and co-occurrence patterns in five lakes with varying degrees of AMD contamination. The results showed that AMD pollution reduced both eukaryotic and prokaryotic diversity in the lakes. Acidic lakes had higher abundance of chemoautotrophs, while less polluted lakes had increased abundance of photosynthetic microalgae and heterotrophic/mixotrophic prokaryotes. Furthermore, acidity-dominated environmental selection drove the assembly of both eukaryotic and prokaryotic communities, with eukaryotes being more affected. These findings provide insights into the ecological processes in response to AMD contamination.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Shiqi Zhou, Zhi Chen, Jin Wang, Zhengbo Yue
Summary: The presence of sulfate in sewage treatment has significant impacts on biological nitrogen removal, inhibiting the metabolic process of hydrazine synthesis and oxidation. Supplying hydrazine can effectively recover the normal metabolism of anammox bacteria after inhibition.
ENVIRONMENTAL SCIENCE-WATER RESEARCH & TECHNOLOGY
(2022)
Article
Environmental Sciences
Zhixiang She, Jin Wang, Chen He, Xin Pan, Quan Shi, Rui Shao, Yunyun Li, Zhengbo Yue
Summary: This study evaluates the relationships between microbial populations and dissolved organic matter (DOM) pools in an acid mine drainage (AMD) lake using high-throughput microbial and chemical analyses. The results show that microalgae are the primary producers in the system and contribute significantly to the DOM concentration. DOM diversity is correlated with bacterial community diversity. Microalgae and bacteria exhibit metabolic interactions via DOM exchange.
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)
