Article
Agricultural Engineering
Leonardo J. Martinez-Mendoza, Raquel Lebrero, Raul Munoz, Octavio Garcia-Depraect
Summary: This study investigates the influence of operational parameters on biohydrogen production from fruit-vegetable waste via lactate-driven dark fermentation. The results show that more neutral pH values and low total solids concentrations result in higher hydrogen yields and rates, while higher biomass densities enable higher production rates and reduce variations in hydrogen production.
BIORESOURCE TECHNOLOGY
(2022)
Article
Engineering, Environmental
Luis Ramiro Miramontes-Martinez, Pasiano Rivas-Garcia, Alonso Albalate-Ramirez, Jose Enrique Botello-Alvarez, Carlos Escamilla-Alvarado, Ricardo Gomez-Gonzalez, Monica Maria Alcala-Rodriguez, Roberto Valencia-Vazquez, Ivan Alonso Santos-Lopez
Summary: The study investigated the anaerobic digestion of fruits and vegetable waste, slaughterhouse waste, and cattle manure under mesophilic conditions to explore the impact of co-digestion on methane yield and process stability. Results showed that the co-digestion of FVW:CM at a 1:1 VS ratio had the highest synergistic effect, while FVW:SHW at a 1:2 VS ratio increased methane yield significantly. The study suggests that a balanced distribution of nutrients is crucial for improving methane yields in anaerobic digestion processes.
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
(2021)
Article
Polymer Science
Paolo Costa, Marina Basaglia, Sergio Casella, Lorenzo Favaro
Summary: Traditional plastics pose a significant threat to the environment, and there is a need for an alternative degradable plastic. This study found that fruit and vegetable residues from agricultural waste can be used to produce PHAs, which have similar performance to plastics. Red apple and melon residues were identified as the most suitable feedstocks for PHA production. Further research on process optimization and scaling up with C. necator is warranted.
Article
Environmental Sciences
Velusamy Mozhiarasi
Summary: The article discusses the research updates on pretreatment techniques for enhancing biogas yields from vegetable, fruit, and flower market wastes. It highlights the potential of anaerobic digestion technology while acknowledging the challenges and technical issues associated with it.
Article
Engineering, Environmental
Ravinder Arigela, Saranya Gopalakrishnan, Ravikrishna Raghunathan
Summary: Food substrates in processing facilities and dumpsites can release fungal spores into the air, posing potential health and climate risks. Experiments were conducted to measure fungal growth and spore release from fruit and vegetable substrates. The results showed higher spore densities on food substrates compared to synthetic media. A mathematical model was applied to explain the observed flux trends. The study demonstrated the release of spores from a municipal solid waste dumpsite.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Konstantina Tsigkou, Eirini Sventzouri, Constantina Zafiri, Michael Kornaros
Summary: This study valorized a mixture of fruits/vegetable waste-disposable nappies hydrolysate through anaerobic digestion, optimizing the digestate recirculation rate (RR) and evaluating the two-stage system's operation. It was found that RR0.25 significantly increased H2 production by 208%. Compared to RR0.25, using RR0.5 reduced the alkali solution requirements. However, the alkalinity content of the digestate greatly influenced the system's efficiency.
Review
Chemistry, Multidisciplinary
Haoxin Li, Man Zhou, Abu ElGasim Ahmed Yagoub Mohammed, Li Chen, Cunshan Zhou
Summary: The production of plastic products has led to serious environmental pollution, and the development of bioplastics offers a solution to this issue. Fruit and vegetable waste can be used as precursors for bioplastics, with microbial fermentation as a method of processing. Valuable components from the waste can be incorporated into eco-friendly materials for bioplastic production. This not only aids in the degradation of bioplastics, but also generates methane at the end of the life cycle.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2022)
Article
Energy & Fuels
Akanksha Vijay Agrawal, Parmesh Kumar Chaudhari, Prabir Ghosh
Summary: Treatment of organic waste, specifically fruit and vegetable waste (FVW), through anaerobic digestion has become increasingly important due to environmental regulations. Co-digestion of FVW and anaerobic sludge (AS) was investigated, and it was found that a mixing ratio of 25:75 (AS:FVW) resulted in the highest biogas and methane yields. Microwave treatment of the feedstock further improved solubilization and methane production. Kinetic modeling showed that the first-order model was a good fit for the experimental data. The rate constant for the optimal ratio with microwave pre-treatment was slightly higher than that for the untreated optimal ratio.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Thermodynamics
Jaewon Byun, Jeehoon Han
Summary: The increasing generation of food waste presents a major challenge to sustainable development, with the production of green methane being proposed as a promising solution. This study successfully developed a large-scale process for producing green methane from food waste and evaluated its economic feasibility by considering economic parameters.
Article
Plant Sciences
Carlos Morales-Polo, Maria del Mar Cledera-Castro, Marta Revuelta-Aramburu, Katia Hueso-Kortekaas
Summary: Residues and by-products from vegetable and fruit wholesale markets can be converted into energy through anaerobic digestion, with freezing as the most effective pretreatment method, increasing solubility and gas generation, particularly methane, by 59.751%.
Article
Green & Sustainable Science & Technology
Shukla Neha, Neelancherry Remya
Summary: In this study, microwave co-pyrolysis of food-waste and plastic was conducted using recycled biochar as a susceptor, resulting in the co-production of biooil and biochar. The recirculation of biochar had a significant impact on the yield and properties of the end products, as well as the composition of volatile matter and oxygenated compounds in the biooil.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Agronomy
Alberto Carrion-Antoli, Jose Manuel Lorente-Mento, Juan Miguel Valverde, Salvador Castillo, Daniel Valero, Maria Serrano
Summary: This study evaluated the effects of preharvest melatonin treatment on crop yield and fruit quality properties in sweet cherries. The results showed that melatonin treatment had no significant effect on crop yield, but decreased decayed and cracked fruit percentage. Fruit quality traits and the levels of bioactive compounds were enhanced by melatonin treatments.
Article
Green & Sustainable Science & Technology
L. Lindberg, E. Ermolaev, B. Vinneras, C. Lalander
Summary: Black soldier fly larvae (BSFL) composting is a technology that implements circular economy principles. This study investigated the efficiency and emissions of greenhouse gases (GHG) and ammonia from BSFL composting of orange peels and broccoli and cauliflower trimmings. Results showed that pre-treatment did not significantly improve waste-to-biomass conversion efficiency (BCE), but it reduced the material amount. GHG emissions were low, and pre-treatment increased waste treatment capacity. However, it also increased ammonia emissions.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Biochemistry & Molecular Biology
Ewelina Kultys, Marcin Andrzej Kurek
Summary: Carotenoids have various health-promoting properties and are used in the food industry, cosmetics, animal feed, and pharmaceuticals. Extracting carotenoids from by-products of fruit and vegetable processing can reduce food waste. The latest extraction methods include solvent-free extraction, green extraction using ultrasound and microwaves, and supercritical CO2 extraction.
Article
Engineering, Environmental
Yin Jun, Wang Yifan, Wang Qiongyin, Zhang Shuo, Wang Meizhen, Feng Huajun, Jiang Jun, Qiu Xiaopeng, Zhang Yanfeng, Chen Ting
Summary: This study investigates fruit and vegetable wastage in traditional farmers' markets in China, Thailand, and South Korea, using a market in Hangzhou, China as a case study. It found that wastage is influenced by factors such as sales varieties, time of day, seasonal variation, market size, and sales volume. The analysis ranked factors influencing fruit and vegetable sales as market service community size, appearance, weather, market environment, price, and origin. Most stakeholders are motivated to reduce waste due to ethics, legal requirements, and economic reasons.
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
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)
Article
Engineering, Environmental
Pezhman Kazemi, Jaume Giralt, Christophe Bengoa, Armin Masoumian, Jean-Philippe Steyer
WATER SCIENCE AND TECHNOLOGY
(2020)
Article
Entomology
Aya Yanagawa, Masatoshi Tomaru, Atsushi Kajiwara, Hiroki Nakajima, Elie Desmond-Le Quemener, Jean-Philippe Steyer, Tomohiko Mitani
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
Xiaojian Liu, Bei Wang, Yayun Ma, Xiangyang Zhou, Juan Yang, Yuehui He, Jingjing Tang, Fanyun Su, Wan Yang
Summary: This study proposes a combined process of reduction roasting of herb-medicine residue and oxalic acid leaching to improve the recovery efficiency of lithium from spent lithium-ion batteries. By utilizing the reducing gas produced from the pyrolysis of herb-medicine residue, the layered structure of the cathode powder is destroyed and converted into Li2CO3, Ni, Co, and MnO. Additionally, selective extraction of lithium is achieved using oxalic acid, and the efficiency and kinetics of lithium extraction are improved under the combined action of herb-medicine residue and oxalic acid.
Article
Engineering, Environmental
Muxina Konarova, Nuno Batalha, Gabriel Fraga, Mohamed H. M. Ahmed, Steven Pratt, Bronwyn Laycock
Summary: This study presents a proof of concept for a technology that integrates PET recovery from mixed plastic waste and plastic pyrolysis. By depolymerizing PET into TPA using a low volatility oil as medium, it achieves low-pressure operation and a selective separation and recovery of TPA from the product mix. Full PET conversion and high TPA recovery were achieved, making it an effective solution for processing mixed waste streams and improving the yield and quality of liquid product from thermal pyrolysis compared to untreated feedstock.
Article
Engineering, Environmental
Zhenhua Sun, Jing Li, Xuejiang Wang, Siqing Xia, Jianfu Zhao
Summary: This study investigated the influence of in-situ formed MgFe2O4 on the hydrothermal treatment of swine manure. The results showed that the in-situ formation of MgFe2O4 improved the dehydration and decarboxylation of organic components in swine manure, thereby improving its carbonization degree. Furthermore, it enhanced the stabilization of heavy metals and the retention of phosphorus. MgFe2O4 modified hydrochars exhibited remarkable adsorption capacity for Pb(II) and Cu(II) without any leaching of heavy metals.
Article
Engineering, Environmental
Yijing Jiang, Boyang Leng, Jingxin Xi
Summary: The increased generation of municipal solid waste has had a significant impact on the economy, environment, and public health. The current waste treatment process has limitations. By developing a comprehensive social costing model, this study assesses the impacts of municipal solid waste management throughout its life cycle and provides policymakers with best practices and feasibility information.
Article
Engineering, Environmental
Marina Hernandes de Paula e Silva, Ricardo Coser Mergulha, Jose Geraldo Vidal Vieira, Andrea Brasco Pampanelli, Rodrigo Salvador, Diogo Aparecido Lopes Silva
Summary: This study developed and implemented a self-assessment tool to assist companies in decision-making processes for establishing circular flows based on Lean Manufacturing and Circular Economy principles. The tool utilized a maturity model and was applied to nine companies of varying characteristics. The findings revealed that certain companies showed higher maturity in water-waste and chemical-emissions management, with larger enterprises focusing on these strategies. However, many companies lacked sufficient training and employee awareness prior to seeking cleaner alternatives, and comprehensive actions to manage the product lifecycle were lacking. To address these gaps, the tool provided tailored recommendations for each company to improve their processes, products, and value chain.
Article
Engineering, Environmental
Gamze Dogdu, Turgay Pekdemir, Sanaz Lakestani, Seyda Karabork, Osman Cavus
Summary: This paper presents data on food waste associated with mini size food packaging services, highlighting the difficulties in emptying the food and consumer wastefulness as the main causes. These findings have significant implications for the sustainability of food and relevant packaging.
Article
Engineering, Environmental
Qingxia Li, Xin Kong, Yuxin Chen, Jianan Niu, Jia Jing, Jin Yuan, Yifeng Zhang
Summary: This study investigates how to enhance methane production from food waste after hydrothermal pretreatment. The results demonstrate a significant increase in methane yield when zero-valent iron and magnetite are used together, and high organic loading is favorable for methane production. Microbial diversity analysis further reveals the dominant pathways and metabolic processes involved in methane generation.
Article
Engineering, Environmental
D. H. H. Sim, I. A. W. Tan, L. L. P. Lim, E. T. Lau, B. H. Hameed
Summary: The development of controlled-release fertilizer formulation is important for preventing environmental pollution caused by nutrient leaching and volatilization. This study combined biochar-based fertilizer with encapsulation technology to improve the nutrient release mechanism. Optimal conditions for synthesizing urea-impregnated biochar (UIB) were determined using central composite design, and the release of nitrogen was described by mathematical models. Results showed that encapsulated UIB (EUIB) achieved complete release of nitrogen in water and exhibited improved water retention in sandy-textural soil. Therefore, EUIB derived from peppercorn waste has the potential to be used as a sustainable controlled-release fertilizer for agriculture.
Article
Engineering, Environmental
Yuchuan Wang, Neslihan Akdeniz
Summary: Incorporating biochar into composting systems can increase compost temperatures. This study developed a heat transfer model for a biochar-amended co-composting system and found that biochar increased thermal conductive losses but also enhanced microbial activity, resulting in an overall increase in total heat unit. When biochar was applied on the surface, it mainly functioned as an insulator.
Article
Engineering, Environmental
George Tsalis, Birger Boutrup Jensen, Jessica Aschemann-Witzel
Summary: This paper empirically explores the relationship between retail price promotions and household food waste. The results show that households with a higher proportion of discount food purchases and environmental awareness tend to waste less food, while larger households and those lacking food handling skills tend to waste more food.
Article
Engineering, Environmental
Lukas Friederici, Arne Koch, Patrick Martens, Jana Pantzke, Sebastiano Di Bucchianico, Thorsten Streibel, Christopher P. Rueger, Ralf Zimmermann
Summary: The increasing demand for lightweight materials has led to a rise in fiber-reinforced plastic (FRP) production. However, the properties and compositional range of FRPs pose challenges to recycling strategies. Pyrolysis has emerged as a promising method for separating the fibers from the polymer matrix. This study investigated the pyrolysis process using thermal analysis and high-resolution mass spectrometry, and also assessed the toxicity of the recovered fibers using an in vitro model.
Review
Engineering, Environmental
Devika Kannan, Shakiba Khademolqorani, Nassibeh Janatyan, Somaieh Alavi
Summary: This paper introduces Smart Waste Management (SWM) that applies Industry 4.0 technologies in waste management. A framework called SWM4.0 is developed, which highlights the importance of smart people, smart cities, smart enterprises, and smart factories in achieving successful waste management. The paper also suggests future research directions and managerial implications.