Article
Energy & Fuels
Walter Anaya Menacho, Abdul Md Mazid, Narottam Das
Summary: Research on producing biofuel from food waste using a two-stage digester setup has shown promising results in increasing biogas and methane production, with simulations providing valuable data for future industrial-level biogas research and development.
Article
Engineering, Environmental
F. Granzotto, C. Aita, D. D. Silveira, F. D. Mayer, S. B. Pujol, J. A. Pinas, R. Hoffmann
Summary: Anaerobic digestion proved to be an efficient method for treating organic wastes from university restaurants, achieving high removal rates of pollutants and producing biogas and digestate for potential use as organic fertilizer.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Angeliki Maragkaki, Christos Tsompanidis, Kelly Velonia, Thrassyvoulos Manios
Summary: Bioplastics, commonly used for food packaging and carrier bags, can be sent to biogas plants from the separate collection of organic waste. This study focused on the valorization of poly-L-lactic acid (PLLA) composed of food waste through anaerobic digestion. The addition of PLLA increased biogas production without negative impacts on the operation of reactors in both laboratory and pilot-scale experiments.
Article
Agricultural Engineering
Ebba Perman, Anna Schnurer, Annika Bjorn, Jan Moestedt
Summary: Optimization of the biogas generation process is crucial for improving degradation and methane yield. In this study, serial digester systems were found to increase methane yield and protein degradation, while reducing the inhibitory effect of high ammonia levels on methane production.
BIOMASS & BIOENERGY
(2022)
Review
Environmental Sciences
Chenxi Jin, Shiqiang Sun, Dianhai Yang, Weijie Sheng, Yadong Ma, Wenzhi He, Guangming Li
Summary: With the implementation of zero-waste city and waste classification in China, there is an urgent need for advanced food waste treatment technology. Anaerobic digestion (AD) technology has attracted much attention in China due to its advantages including clean energy production, low carbon emissions, and suitability for large-scale treatment. Chinese policies are conducive to the development and promotion of AD technology for food waste treatment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Endashaw Workie, Vinor Kumar, Amit Bhatnagar, Yiliang He, Yanjun Dai, Yen Wah Tong, Yinghong Peng, Jingxin Zhang, Cunbin Fu
Summary: With the increasing global food waste, the potential for bioenergy production is being explored. This paper reviews the research progress, gaps, and prospects in the process of methane production from food waste. Anaerobic digestion has shown high efficiency in converting food waste to methane. The review also highlights the importance of evaluating weather variations and microphysical properties of the food waste for efficient valorization.
Article
Green & Sustainable Science & Technology
Huaping Xiao, Dongqing Zhang, Zhihua Tang, Kai Li, Huafang Guo, Xiaojun Niu, Linzi Yi
Summary: This study evaluated the environmental and economic impacts of different scenarios for food waste and biogas digestate management in Shenzhen, China. The results showed that dry AD coupled with biogas digestate incineration had the best net environmental benefits, reducing 195 kg CO2 per ton of FW, and was the most economically feasible option. Dry AD scenarios exhibited better environmental benefits compared to wet AD, especially in terms of global warming, human toxicity, marine aquatic ecotoxicity, and photochemical ozone creation potential. Incineration was found to be the best post treatment option for biogas digestate.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Swakshar Saha, Abid Hussain, Jangho Lee, Eunseok Lee, Hyung-Sool Lee
Summary: This study developed an integrated LBR-AnMBR system for efficient stabilization and biogas recovery from food waste at room temperatures. The system achieved high hydrolysis and acidification yields through the optimized leachate recirculation rate. The solubilized food waste was further stabilized in the AnMBR, resulting in high COD removal and methane yields. The system also produced high-quality permeates containing valuable nutrients for reuse.
Article
Environmental Sciences
Cheng Yu, Bi Dongsu, Zhang Tao, Jiang Xintong, Chen Ming, Wang Siqi, Shen Zheng, Zhang Yalei
Summary: Bioplastic bags have the potential to replace traditional petroleum-based plastic bags as they can be anaerobically digested with food waste to produce renewable energy.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Environmental Sciences
Teklit Gebregiorgis Ambaye, Eldon R. Rene, Abdul-Sattar Nizami, Capucine Dupont, Mentore Vaccari, Eric D. van Hullebusch
Summary: Food waste generation due to population increase is a global issue, with traditional disposal methods being inefficient. Anaerobic digestion technology, with the addition of biochar, has shown promise in improving production yields and optimizing critical parameters, yet challenges exist.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Energy & Fuels
Hassan Erraji, Mohamed Elamin Afilal, Abdeslam Asehraou, Khalid Azim
Summary: Food waste, rich in biodegradable materials, is a major environmental concern due to its negative impact. This study focused on assessing biogas production from food waste and the effects of liquid digestate on open field crops. The results showed promising biogas production and beneficial effects of liquid digestate on plant growth.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Thermodynamics
Dan Cudjoe, Emmanuel Nketiah, Bright Obuobi, Gibbson Adu-Gyamfi, Mavis Adjei, Bangzhu Zhu
Summary: Global environmental change is driven by food production, and biogas from food waste is considered a better source of clean energy. This study assessed the electricity generation potential and economic feasibility of biogas to electricity projects in major cities of Ghana, revealing that the projects are economically feasible in Accra and Kumasi. However, the projects become infeasible when the discount rate exceeds 20%.
Article
Engineering, Environmental
G. Chinellato, F. Battista, D. Bolzonella, C. Cavinato
Summary: An innovative layout promoting the use of small, decentralised AD plants was proposed in this study, aiming to achieve stable processing and efficient gas production by treating high solid content source-separated OFMSW in a single-stage reactor.
Review
Environmental Sciences
Archana Paranjpe, Seema Saxena, Pankaj Jain
Summary: Anaerobic co-digestion is an important technology for processing organic waste, recovering nutrients, and creating sustainable biofuel. However, the low biogas output and high installation costs limit its viability. This literature review demonstrates that anaerobic co-digestion produces more methane biogas than anaerobic digestion, and adjusting the waste-to-water waste ratio can increase methane production.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Review
Chemistry, Multidisciplinary
Kah Rong Chew, Hui Yi Leong, Kuan Shiong Khoo, Dai-Viet N. Vo, Hirra Anjum, Chih-Kai Chang, Pau Loke Show
Summary: Anaerobic digestion of food waste appears to be a promising method for generating biogas in the face of increasing energy demand and the circular economy. It causes less air and solid waste pollution compared to other methods such as incineration, gasification, and pyrolysis. Research on biogas production mainly focuses on substrate performance, with limited investigations on the environmental impact of anaerobic digestion.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Environmental Sciences
Esther Molina-Penate, Nil Arenos, Antoni Sanchez, Adriana Artola
Summary: This paper explores an alternative method for utilizing the organic fraction of waste by enzymatic hydrolysis to obtain sugar-rich fraction for liquid fermentation and partially hydrolyzed solid for solid-state fermentation. The pH of the solid substrate was modified using alkaline cosubstrates, and the growth and sporulation of Bacillus thuringiensis were achieved. This valorization pathway aligns with the concept of urban biorefineries.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Engineering, Chemical
Edgar Ricardo Oviedo-Ocana, Jonathan Soto-Paz, Viviana Sanchez-Torres, Antoni Sanchez
Summary: This study investigated the impact of incorporating processed food waste, unprocessed food waste, sawdust, phosphate rock, and a specific bacterial inoculum on the composting process and product quality of green waste. The addition of food waste, sawdust, phosphate rock, and the inoculum increased the degradation of lignocellulose, reducing processing time. The effect of the inoculum was compared between laboratory-scale reactors and pilot-scale piles.
Article
Agricultural Engineering
Raquel Barrena, Maria del Carmen Vargas-Garcia, Paula Catacora-Padilla, Teresa Gea, Ahmad Abo Markeb, Javier Moral-Vico, Antoni Sanchez, Xavier Font, Thomas J. Aspray
Summary: The effect of magnetite nanoparticles and nanocomposites on overloaded anaerobic reactors was evaluated. Both nanomaterials were able to recover methane production within 40 days in granular sludge systems. Magnetite nanoparticles at various doses also recovered the process in flocculent sludge systems between 30 and 50 days. The presence of nanomaterials reversed the inhibition caused by volatile fatty acids and promoted the growth of certain microorganisms.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Golafarin Ghoreishi, Raquel Barrena, Xavier Font
Summary: This study aims to investigate the feasibility of using green waste to produce a biostimulant (IAA) and biopesticide (conidial spore) through solid-state fermentation. Trichoderma harzianum was selected as the inoculum and the green waste was a mixture of grass clippings and pruning waste. The results showed that washing and using phosphate buffer had a positive effect on the quality and bioproduction of the green waste.
Article
Green & Sustainable Science & Technology
Brayan Alexis Parra-Orobio, Jonathan Soto-Paz, Anulfo Ramos-Santos, Keiner Fernando Sanjuan-Quintero, Rossember Saldana-Escorcia, Isabel Cristina Dominguez-Rivera, Antoni Sanchez
Summary: The increasing pressure on water resources due to population growth and high water consumption has led to water stress, especially in urban areas from tropical developing countries. The Total Water Footprint (WFtotal) and the Environmental Sustainability Index (SIblue) are holistic water management tools that help identify pressures over water resources. This study assessed the WFtotal and its components in low-income households in Colombia, identifying the activities with high environmental impact and the water quality in the receiving wetland. The results showed a high WFgreen and the scarcity scenarios regarding water quality and sedimentation in the Baquero wetland according to the SIblue.
Article
Environmental Sciences
Arnau Sala, Raquel Barrena, Nicolai V. Meyling, Adriana Artola
Summary: This study presents the scale-up of conidia production of the entomopathogenic fungus Beauveria bassiana using different waste materials and its virulence against Tenebrio molitor. The results show that using beer draff as a substrate can achieve higher conidia production. In addition, scaling up the production of Beauveria bassiana using rice husk and beer draff as substrates is feasible.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Review
Engineering, Environmental
E. R. Oviedo-Ocana, C. Abendroth, I. C. Dominguez, A. Sanchez, C. Dornack
Summary: This study systematically reviews LCA studies in biowaste and/or green waste composting. The results show that applying LCA in composting facilities faces challenges, including extensive information required, lack of standardization on initial assumptions, definition of system boundaries, and high diversity of existing composting technologies.
Article
Chemistry, Multidisciplinary
Ahmad Abo Markeb, Javier Moral-Vico, Antoni Sanchez, Xavier Font
Summary: The present study synthesized a novel nanocomposite (Fe3O4@CS@CMC-SiNH2) for the removal of lead (II) from wastewater. The synthesized nanocomposite showed superior adsorption performance with a maximum adsorption capacity of 555.56 mg(Pb(II))/g(NC), fast achievement of adsorption equilibrium, and favorable monolayer chemisorption. The nanocomposite also exhibited high efficiency in the removal of lead (II) ions in the absence and presence of other contaminants, and showed satisfactory reusability for multiple cycles of the adsorption-desorption process.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Seyed Alireza Vali, Ahmad Abo Markeb, Javier Moral-Vico, Xavier Font, Antoni Sanchez
Summary: Methane and carbon dioxide are the main contributors to global warming, with the methane effect being 25 times more powerful than carbon dioxide. Converting methane to methanol allows for energy storage. In recent years, a new generation of catalysts has emerged, enabling the transformation of methane to methanol under mild conditions with higher conversion and selectivity.
Review
Engineering, Chemical
Roberto Carlos Solano Porras, Adriana Artola, Raquel Barrena, Golafarin Ghoreishi, Cindy Ballardo Matos, Antoni Sanchez
Summary: This study reviews the processes and production methods of natural biostimulants (NBs) produced through solid-state fermentation (SSF) from organic waste, highlighting their potential for improving agricultural productivity and promoting sustainable agriculture. The effects of NBs on crops and the challenges associated with their production and application are summarized. The importance of standardizing production processes, optimizing fermentation conditions, and assessing their effects on different crops is emphasized. Future research areas, such as enhancing production efficiency and evaluating the effectiveness of SSF-produced NBs in different agricultural systems, are introduced. In conclusion, SSF-produced NBs offer a promising alternative for sustainable agriculture, but further research and development are needed to maximize their efficacy and enable large-scale implementation.
Article
Agronomy
Carlos Solano, Adriana Artola, Raquel Barrena, Cindy Ballardo, Antoni Sanchez
Summary: This study investigated the effects of exogenous application of indole-3-acetic acid (IAA) as a growth regulator in onion cultivation and found that different concentrations of IAA had a significant impact on onion growth and quality.
Article
Environmental Sciences
Dani Salom, David Fernandez-Verdejo, Javier Moral-Vico, Xavier Font, Ernest Marco-Urrea
Summary: This study tested the combination of anaerobic dechlorinating bacteria and nanoscale zero-valent iron (nZVI) for the degradation of chloroform, dichloromethane, and 1,2-dichloroethane. The results showed that nZVI released soluble compounds that inhibited the activity of the dechlorinating bacteria, but the activity was recovered in the absence of nZVI.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)