Article
Green & Sustainable Science & Technology
Gerard Merlin, Jonathan Outin, Herve Boileau
Summary: The study showed that adding grease or whey can significantly increase methane production in co-digestion, but using septage as a co-substrate can have a negative impact on performance. Experimental results demonstrated good biodegradation efficiency, while modeling confirmed the importance of protein and lipid content for digester stability and methane production.
Article
Biotechnology & Applied Microbiology
Khuthadzo E. Mudzanani, Terence T. Phadi, Sunny E. Iyuke, Michael O. Daramola
Summary: This study adjusts the International Water Association's anaerobic digestion model to construct an evaluation method for co-digestion and to predict the performance of the digestion process. Additional equations and simulations are added to the model to evaluate the feasibility of anaerobic co-digestion.
FERMENTATION-BASEL
(2023)
Article
Green & Sustainable Science & Technology
Pengfei Li, Zhanjiang Pei, Di Liu, Fengmei Shi, Su Wang, Wenzhe Li, Yong Sun, Jie Liu, Yabing Gao, Qiuyue Yu
Summary: A modified mathematical model was established to simulate the anaerobic bioconversion process of vegetable crop residues, with a focus on crystalline cellulose. The model successfully predicted methane production data of different VCRs, but further modifications and validations are needed for simulating other types of lignocellulosic waste.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Santiago Garcia-Gen, Alain Vande Wouwer
Summary: A model-based optimisation method for anaerobic co-digestion start-up is proposed to improve biogas yield and replace traditional manual operation.
Article
Energy & Fuels
Preseela Satpathy, Kerstin Wunder, Maik Vaske, Sven Steinigeweg
Summary: Circular economy is a solution framework that aims to create value from waste by replacing the traditional linear approach. This study discovered that bladderwrack, a brown sea weed, can be co-digested with maize silage to produce more biogas, reducing dependency on forage crops like maize and improving biogas production. Mathematical simulations demonstrated the effectiveness of this process.
Article
Green & Sustainable Science & Technology
C. Urtnowski-Morin, F. Tanguay-Rioux, R. Legros, L. Spreutels
Summary: Material flow analysis (MFA) is a valuable tool for decision making in waste management systems, relying on transfer coefficients to model flows of goods and substances. This study compared three levels of model complexity to upgrade MFA, showing that simpler models were sufficient to predict methane production while complex models were needed for behavior regarding nitrogen loss. Integrating the model in transient state was advantageous for nitrogen modelling, and upgrading MFA with a process model like ADM1 allows for better analysis of waste treatment processes.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Biotechnology & Applied Microbiology
Amsalu Tolessa, Neill J. Goosen, Tobias M. Louw
Summary: Anaerobic co-digestion is an effective method to overcome limitations in individual substrate digestion, but finding suitable substrate combinations requires extensive experimentation. In this study, a probabilistic framework using Anaerobic Digestion Model No. 1 was developed to estimate methane production potential from mixed substrates, and the framework was validated using agricultural residues as a case study. The results showed that co-digestion can increase mean methane content by up to 8% compared to mono-digestion. However, the predicted probability distributions were multimodal, highlighting the need for a probabilistic approach in anaerobic digestion modeling for accurate decision making.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Ming-Yan Shen, Zong-Hao Huang, Yu-Ting Kuo, Jie Hsu, Han-Wen Yang, Chi-Yen Peng, Chen-Yeon Chu
Summary: This study investigated two steps of hydrolysis and anaerobic biogas production processes. Subcritical water hydrolysis and chemical pre-treatments were found to greatly enhance hydrolysis efficiency. The optimal biomethane yield was achieved through co-digestion of acid hydrolysate with pulp wastewater.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Ming-Yan Shen, Zong-Hao Huang, Yu-Ting Kuo, Jie Hsu, Han-Wen Yang, Chi-Yen Peng, Chen-Yeon Chu
Summary: This study investigated the hydrolysis and anaerobic biogas production processes. Subcritical water hydrolysis and chemical pretreatments were found to enhance hydrolysis efficiency and bioenergy conversion.
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
Madhu Kumari, Munish K. Chandel
Summary: Utilizing municipal solid waste (MSW) and sewage sludge (SS) as a source of renewable energy is crucial for achieving sustainable and integrated MSW management. Co-digestion of SS and organic fraction of MSW (OFMSW) can mitigate the challenges of mono-digestion and enhance methane production. This study aimed to optimize the mix ratio for anaerobic co-digestion of OFMSW and SS, and the results showed that increasing the proportion of SS in the mix ratio significantly increased methane yield. These findings highlight the potential of co-digesting SS and OFMSW as a preferable alternative for renewable energy generation and organic waste management.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agricultural Engineering
Nadiia Nikulina, Seda Uslu, Andreas Lemmer, Nuri Azbar, Hans Oechsner
Summary: The anaerobic co-digestion experiment found that the optimal methane yield was achieved with a 20/80 ratio of organic solid waste/solid inoculum with liquid inoculum under thermophilic conditions. Addition of chicken manure positively influenced the start-up phase and helped maintain pH within the optimal range.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Jibao Liu, Yufeng Xu, Yuansong Wei
Summary: This study investigated the role of sludge rheology in anaerobic digestion (AD) and found that rheological properties increased with the increase of solid content, resulting in a negative effect on methane production. An extended ADM1 model revealed that enhanced sludge rheological properties increased mass diffusion resistance and reduced uptake rate of acetate.
BIOCHEMICAL ENGINEERING JOURNAL
(2024)
Article
Environmental Sciences
Takum Nalo, Sonam Paliya, Ashootosh Mandpe, Nabam Rich, Ajay Bharti, Sunil Kumar
Summary: This study investigates the anaerobic digestion of municipal solid waste and lignocellulosic waste and finds that the best combination for methane production is a 1:1 ratio of organic fraction of municipal solid waste to lignocellulosic waste. It is also discovered that mesophilic conditions play a crucial role in the digestion process.
Article
Energy & Fuels
Valderi D. Leite, Railson O. Ramos, Paula M. U. Silva, Wilton S. Lopes, Jose T. Sousa
Summary: This study investigated the hydrolysis of carbonaceous and nitrogenous materials in the anaerobic co-digestion process of solid vegetable waste and anaerobic sewage sludge using zero-, first-, and second-order pseudo-kinetic models. The digestion of CODP and subsequent conversion to CODF was found to occur in two stages, with significant differences in the kinetic constants. A simplified kinetic model based on a first-order differential equation was proposed, which showed excellent calibration and validation parameters.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
Javiera Toledo-Alarcon, Lea Cabrol, David Jeison, Eric Trably, Jean-Philippe Steyer, Estela Tapia-Venegas
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Chemistry, Physical
Simon Poirier, Jean-Philippe Steyer, Nicolas Bernet, Eric Trably
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2020)
Article
Environmental Sciences
Floriana Iasimone, Jordan Seira, Elie Desmond-Le Quemener, Antonio Panico, Vincenzo De Felice, Francesco Pirozzi, Jean-Philippe Steyer
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2020)
Article
Engineering, Environmental
Julie Jimenez, Cyrille Charnier, Mokhles Kouas, Eric Latrille, Michel Torrijos, Jerome Harmand, Dominique Patureau, Mathieu Sperandio, Eberhard. Morgenroth, Fabrice Beline, George Ekama, Peter A. Vanrolleghem, Angel Robles, Aurora Seco, Damien J. Batstone, Jean-Philippe Steyer
Article
Engineering, Environmental
Pezhman Kazemi, Jaume Giralt, Christophe Bengoa, Jean-Philippe Steyer
WATER SCIENCE AND TECHNOLOGY
(2020)
Article
Engineering, Chemical
Pezhman Kazemi, Jean-Philippe Steyer, Christophe Bengoa, Josep Font, Jaume Giralt
Article
Agricultural Engineering
Angel Robles, Gabriel Capson-Tojo, Amandine Gales, Alexandre Viruela, Bruno Sialve, Aurora Seco, Jean-Philippe Steyer, Jose Ferrer
BIORESOURCE TECHNOLOGY
(2020)
Article
Environmental Sciences
Angel Robles, Gabriel Capson-Tojo, Amandine Gales, Maria Victoria Ruano, Bruno Sialve, Jose Ferrer, Jean-Philippe Steyer
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2020)
Article
Green & Sustainable Science & Technology
Ulysse Bremond, Aude Bertrandias, Denis Loisel, Julie Jimenez, Jean-Philippe Steyer, Nicolas Bernet, Helene Carrere
Article
Multidisciplinary Sciences
Aya Yanagawa, Atsushi Kajiwara, Hiroki Nakajima, Elie Desmond-Le Quemener, Jean-Philippe Steyer, Vernard Lewis, Tomohiko Mitani
SCIENTIFIC REPORTS
(2020)
Article
Biotechnology & Applied Microbiology
J. Lacroux, E. Trably, N. Bernet, J-P Steyer, R. van Lis
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2020)
Review
Green & Sustainable Science & Technology
Ulysse Bremond, Aude Bertrandias, Jean-Philippe Steyer, Nicolas Bernet, Helene Carrere
Summary: The future European Green Deal aims to reduce greenhouse gas emissions by 2030, with a focus on decarbonizing the gas sector and developing biomethane. The biogas sector is shifting towards utilizing organic wastes and agricultural by-products as feedstocks, upgrading biogas to biomethane for various applications, and reducing subsidy schemes to increase sustainability and reduce production costs. This article identifies and discusses key improvement tracks for the biogas sector to ensure growth towards 2030 and beyond.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
Alexandre Mallet, Cyrille Charnier, Eric Latrille, Ryad Bendoula, Jean-Philippe Steyer, Jean-Michel Roger
Summary: Near infrared spectroscopy (NIRS) is used for organic waste management, with a customized system allowing simultaneous scanning of spectra and estimation of dry matter content during the drying process. Water effects on near infrared spectra are complex, involving both physical and chemical effects, and are influenced by sample characteristics and moisture levels.
Article
Engineering, Chemical
Victor Alcaraz-Gonzalez, Fabian Azael Fregoso-Sanchez, Victor Gonzalez-Alvarez, Jean-Philippe Steyer
Summary: A multivariable adaptive feedback control method for continuous anaerobic digestion processes is proposed to regulate various parameters and has been experimentally tested and shown potential for practical application in industrial digesters.
Article
Microbiology
Ulysse Bremond, Aude Bertrandias, Jerome Hamelin, Kim Milferstedt, Valerie Bru-Adan, Jean-Philippe Steyer, Nicolas Bernet, Helene Carrere
Summary: The recirculation of solid digestate with ligninolytic aerobic consortia did not increase methane recovery during the short-term aerobic post-treatment. The decrease in methane yields was attributed to the respiration of easily degradable fractions by the selected consortia.
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.
