Article
Energy & Fuels
Ruben Angeriz-Campoy, Luis A. Fdez-Guelfo, Carlos J. Alvarez-Gallego, Luis Romero-Garcia
Summary: This study focuses on the production of bio-hydrogen through the thermophilic dry anaerobic acidogenic co-digestion of pre-composted mixtures of organic fraction of municipal solid waste (OFMSW) and food waste (FW) at high temperatures. Pre-composting has been found to enhance the hydrolytic and acidogenic phases and increase bio-hydrogen production.
Article
Engineering, Environmental
Nihal Gujre, Richa Agnihotri, Latha Rangan, Mahaveer P. Sharma, Sudip Mitra
Summary: The study examined the bio-stabilization of heavy metals in contaminated soils by GRSP produced by AMF, and found that GRSP showed weak positive correlation with essential elements like zinc and copper, weak positive correlation with toxic elements like cadmium and nickel, and negative correlation with chromium and manganese.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Alessia Borgogna, Gabriele Centi, Gaetano Iaquaniello, Siglinda Perathoner, Georgia Papanikolaou, Annarita Salladini
Summary: This study assesses the economic and CO2 emission impact of producing H-2 from municipal solid waste in two different configurations, comparing it with steam reforming of methane and water electrolysis. The results suggest that waste gasification may be a more competitive option under certain conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Physical
Merve Ozturk, Ibrahim Dincer
Summary: This paper conducts a comprehensive case study on utilizing municipal solid waste for potential hydrogen production. The energy and exergy efficiencies for hydrogen production are found to be 57% and 55% respectively, with good agreement achieved with previous studies. The waste can be converted to hydrogen through a series of processes, including gasifier, cyclone, catalytic reactor, and pressure swing adsorption.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Tilo Rensch, Viviene Chantrain, Miriam Sander, Sven Graetz, Lars Borchardt
Summary: In this study, the mechanochemical synthesis of nitrogen-rich nanoporous carbon materials was scaled up using an extruder. Through the process of extrusion with heat and pressure, nanoporous carbons with high specific surface area were successfully synthesized. The application of different nitrogen sources and low-cost renewable feedstock expanded the range of synthesis, resulting in carbon materials with high C/N ratio. The surface and chemical structures of the obtained carbon materials were analyzed, and their performance as supercapacitor electrodes was comparable to materials synthesized by ball milling.
Review
Biotechnology & Applied Microbiology
Dishit P. Ghumra, Ojaswi Rathi, Tejal A. Mule, Vishwanath S. Khadye, Anand Chavan, Fernando Climent Barba, Shilpa Main, Annamma Odaneth, Bhaskar N. Thorat
Summary: This review discusses the composition of the organic fraction of municipal solid waste (OFMSW) and waste processing strategies, including thermochemical methods and enzymatic hydrolysis. Combined methodologies seem more appropriate for sustainable waste management and efficient carbon recycling. Transforming waste into materials and chemicals can increase its commercial value.
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2022)
Review
Energy & Fuels
Oludare Johnson Odejobi, Olajide Olukayode Ajala, Funmilayo Nihinlola Osuolale
Summary: This article reviews the potential of agricultural, municipal, and industrial wastes in Nigeria for biogas production as an alternative energy source. Anaerobic digestion is considered the best option due to its eco-friendliness and simplicity. Nigeria has significant amounts of underutilized wastes that have the potential for bioenergy generation.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Environmental
Zhaoxu Peng, Kun Jiang, Tianyu Lou, Ningqi Niu, Ju Wang
Summary: Solid-phase denitrification using a composite solid carbon source prepared from polybutylene succinate and peanut shell shows promising results in enhancing nitrate removal efficiency, increasing carbon release performance, and improving microbial activity. Using multiple crosslinking methods for carrier production is an effective strategy to showcase material properties.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Xingwei Zhu, Guozhu Yang
Summary: This study built artificial neural network (ANN) models and particle swarm optimization (PSO) models to predict the heating values of municipal solid waste (MSW). The ANN-4 model, which combines ultimate analysis and proximate analysis, showed the best accuracy in predicting HHVs. Nonlinear empirical formulas obtained by PSO models improved the prediction performance for most samples.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Environmental Sciences
A. Muscolo, F. Romeo, F. Marra, C. Mallamaci
Summary: This study focused on recycling different types of pollutant wastes to limit landfill, reduce greenhouse gas emissions, and produce organic-mineral fertilizers. Sulphur-based pads improved soil quality, especially when containing orange residues. Onion and Garlic grew better and had improved quality, in terms of antioxidant compounds and capacity, in the presence of sulphur-based pads and orange residues.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Engineering, Multidisciplinary
Gertruth Leevhan Tihin, Kim Hung Mo, Chiu Chuen Onn, Hwai Chyuan Ong, Y. H. Taufiq-Yap, Hwei Voon Lee
Summary: The generation rate and composition of global municipal solid waste (MSW), as well as the potential of converting MSW into refuse-derived fuel (RDF) for energy recovery, are discussed. The importance of pre-treatment processes to enhance RDF properties is highlighted. Additionally, the review provides an overview of MSW generation, composition, pretreatment, and application in the cement industry, as well as recent advancements in thermochemical upgrading technologies.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Saikrishna Venna, Hari Bhakta Sharma, P. Hari Prasad Reddy, Shamik Chowdhury, Brajesh Kumar Dubey
Summary: The study demonstrates that using landfill leachate as an alternative moisture source for hydrothermal carbonization can significantly enhance the sustainability of the technology. The resulting hydrochars have comparable fuel characteristics to conventional solid fuels, making them potential inexpensive alternatives to fossil fuels.
BIORESOURCE TECHNOLOGY
(2021)
Article
Engineering, Environmental
Yuekai Xie, Jianfeng Xue, Carthigesu T. Gnanendran, Karyn Xie
Summary: This paper investigates the geotechnical properties of a type of synthetic municipal solid waste (MSW) and finds that the addition of leachate can significantly affect the physical properties of MSW. However, exposure to leachate has minimal impact on the properties of MSW, including compaction, hydraulic conductivity, compression, and shear behavior.
Article
Nanoscience & Nanotechnology
Reeti Bajpai, Soumyendu Roy, Sandeep Verma
Summary: This article presents a simple and fast method for synthesizing nanoflakes/nanoplatelets of transition metal dichalcogenides, such as MoS2, WS2, and VS2. The method involves mixing a transition metal source, a sulfur source, and multiwall carbon nanotubes in a mortar and pestle, and heating in a microwave oven. The synthesized nanomaterials exhibit mixed semiconducting and metallic phases and show impressive electrocatalytic activity.
ACS APPLIED NANO MATERIALS
(2022)
Review
Biochemistry & Molecular Biology
Ravindra Prajapati, Kirtika Kohli, Samir K. Maity, Brajendra K. Sharma
Summary: Plastic is a versatile material used across various industries, but excessive use has led to significant waste pollution. Converting plastic waste into high-value chemicals can help reduce plastic waste, decrease reliance on petroleum, and protect the environment.
Article
Environmental Sciences
Diego Armando Santos Alves, Amilton Barbosa Botelho Junior, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenorio, Marcela dos Passos Galluzzi Baltazar
Summary: This study aimed to investigate the use of biomass from a polluted area for the adsorption of Zn and Cu in wastewater treatment. The results showed that the biomass demonstrated high efficiency in adsorbing the metallic ions, making it a technically feasible option for industrial wastewater treatment.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Engineering, Chemical
Carlos Gonzalo Alvarez Rosario, Amzy Tania Vallenas-Arevalo, Santiago Justo Arevalo, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenorio
Summary: Artisanal and small-scale mining are informal activities that help generate family income, but also lead to environmental and health impacts. This study explores the potential of a native strain to biodegrade cyanide under alkaline conditions, providing an alternative technology.
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Miguel Antonio Soplin Pastor, Amilton Barbosa Botelho Junior, Jorge Alberto Soares Tenorio, Denise Crocce Romano Espinosa, Marcela dos Passos Galluzzi Baltazar
Summary: This study explores different approaches to remove organic matter in alumina production due to the decreased quality of bauxite resources. Advanced oxidative processes (AOPs) are considered as a potential solution, as they are commonly used in wastewater treatment and hydrometallurgy processes to degrade organic pollutants. The project focuses on ozonation of Bayer liquor for organic matter removal. The results show that under optimized conditions, a 19% removal of total organic carbon (TOC) can be achieved with a kinetic rate of 0.0157 h(-1) -21.9 mg/L O-3, 0.05 mol/L H2O2 at 80 degrees C. Furthermore, the study demonstrates the feasibility of applying AOP in an extremely alkaline condition.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
Lidiane Maria Andrade, Amilton Barbosa Botelho Junior, Carlos Gonzalo Alvarez Rosario, Hugo Hashimoto, Cristiano Jose Andrade, Jorge Alberto Soares Tenorio
Summary: As modern electronics become more advanced, printed circuit boards are becoming smaller and more complex, resulting in an increase in copper concentrations in smartphones. Establishing standardized recycling processes to improve metal recovery is challenging. Biohydrometallurgy is a clean and cost-effective process for extracting critical metals from low-grade sources and waste electronic equipment.
BIOPROCESS AND BIOSYSTEMS ENGINEERING
(2023)
Review
Engineering, Chemical
Juliana Mendes de Oliveira, Iara Alves Anes, Jorge Luis Coleti, Denise Crocce Romano Espinosa, Marcelo Siqueira de Carvalho, Jorge Alberto Soares Tenorio
Summary: Niobium (Nb) and Tantalum (Ta) are used to enhance mechanical resistance and produce lighter alloys. Nb production reached 78,000 tons globally in 2020. Recycling of these metals from tin slag contributes to the circular economy. Industrial challenges exist in extracting Nb2O5 and Ta2O5 from primary sources or tin slag, but various dissolution processes have been implemented.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Ana Eluiza Esther da Cunha Domingos, Amilton Barbosa Botelho Junior, Heitor Augusto Duarte, Jorge Alberto Soares Tenorio, Denise Crocce Romano Espinosa, Marcela dos Passos Galluzzi Baltazar
Summary: The study aimed to extract titanium (Ti) and vanadium (V) from the non-magnetic fraction of a Fe-Ti-V deposit in Brazil. Leaching experiments using HCl solution were conducted to evaluate the effect of various factors. The highest extraction rates of Ti (88.1%) and V (82.0%) were achieved using 30%HCl, a solid-liquid ratio of 1/6, and a NaHF2 dosage of 10% w/w at 85 degrees C. Kinetic modeling revealed diffusion control as the main mechanism for V leaching and solid product diffusion control for Ti leaching. The hydrometallurgical route proposed in this study is simple and allows for the production of high-purity products.
Review
Materials Science, Multidisciplinary
Dilshan Sandaruwan Premathilake, Amilton Barbosa Botelho Junior, Jorge Alberto Soares Tenorio, Denise Crocce Romano Espinosa, Mentore Vaccari
Summary: In order to achieve global CO2 net zero, transport vehicles need to be adapted to an electrification system for electric vehicles. Furthermore, with the increasing consumption of electric devices and batteries, it is crucial to recycle spent batteries to achieve a circular economy. This review thoroughly examines recent literature on Lithium-ion Battery (LIB) recycling and proposes a decentralized line for pretreating different types of LIBs, identifying and discussing various treatment possibilities and segments to include in a common line.
Review
Materials Science, Multidisciplinary
David da Silva Vasconcelos, Jorge Alberto Soares Tenorio, Amilton Barbosa Botelho Junior, Denise Crocce Romano Espinosa
Summary: The exponential growth of electric and hybrid vehicles in the last five years has led to a potential waste problem with the end-of-life of their batteries. Li-ion batteries for vehicles are made from natural resources such as Li, Fe, Al, Cu, Co, Mn, and P. Among them, LiFePO4 cathode materials have demonstrated advantages in various aspects. The recycling of these batteries can be accomplished through pyrometallurgy or hydrometallurgy, with the latter being more advantageous due to its low energy consumption and CO2 emissions.
Review
Engineering, Chemical
Amilton Barbosa Botelho Junior, Jorge Alberto Soares Tenorio, Denise Crocce Romano Espinosa
Summary: The increasing demand for critical metals for net-zero technologies has led to the need for improved extraction and recycling processes. Membrane separation techniques have been evaluated for hydrometallurgical processes and have shown promising results. This study provides a literature review on the application of membrane techniques in industrial processes for obtaining critical metals, with a particular focus on lithium, cobalt, and rare earth elements.
Article
Green & Sustainable Science & Technology
Elena Kalinin Toss, Gustavo Coelho Feijoo, Amilton Barbosa Botelho, Denise Crocce Romano Espinosa, Marcela dos Passos Galluzzi Baltazar, Jorge Alberto Soares Tenorio
Summary: The goal of this study was to investigate the adsorption of Cd(II) and Ni(II) ions using biomass from polluted sites. Results showed that biomass could be used to adsorb these ions and pretreatments enhanced the activation of functional groups in the biomass. Under the conditions of pH 7.0 and metal ion concentration of 1.0 g/L, the removal efficiency of Cd(II) reached 55% with autoclaved biomass, while activated carbon achieved only 13%. This highlights the importance of low-cost adsorbents and suggests the potential for industrial activities to utilize contaminated sites for wastewater treatment.
JOURNAL OF SUSTAINABLE METALLURGY
(2023)
Article
Engineering, Chemical
Iara Alves Anes, Franco Garjulli, Marcelo Siqueira de Carvalho, Jorge Alberto Soares Tenorio, Denise Crocce Romano Espinosa, Jorge Luis Coleti
Summary: The aim of this study is to extract Nb from tin slag while leaving Ta solid. Leaching using a combined solution of HCl-NH4F was performed, and 100% of Nb and 5% of Ta were recovered from the leaching liquor within 4 hours at 85 degrees Celsius, using an L:S ratio of 20:1, NH4F: slag ratio of 0.12 g, and HCl concentration of 9.79 mol/L.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Review
Environmental Sciences
A. B. Botelho, M. D. C. R. da Silva, P. S. S. Camargo, D. D. Munchen, M. P. Cenci, D. A. Bertuol, H. M. Veit, J. A. S. Tenorio, D. C. R. Espinosa
Summary: The coronavirus pandemic has had a significant impact on society, including the generation of electronic waste. Behavior changes have led to increased consumption of electronic equipment and are expected to affect electronic waste generation in the years to come. This review article examines the differences between developed and emerging countries regarding electronic waste management and analyzes the effects of the pandemic. It suggests that emerging countries should focus on waste management policies to achieve recycling targets and emphasize circular economy and sustainable development goals.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Tiago Fernandes de Oliveira, Jorge Alberto Soares Tenorio, Denise Crocce Romano Espinosa
Summary: This paper focuses on the processing technologies for the exploitation and purification of Nb and Ta from primary and secondary ore sources. Fusion and leaching processes, along with solvent extraction and ion exchange technology, are commonly used in hydrometallurgical strategies to obtain mixed Nb and Ta products or separated compounds with a desired industrial purity. The use of organic or different mineral acids instead of fluoride-based acids allows the use of tertiary amines as organic extractants, providing an innovative and environmentally friendly strategy for separation and purification of Nb and Ta. Ion exchange technology also offers a way to obtain highly pure Nb and Ta compounds from low-grade sources. The paper provides an overview of recent literature on these hydrometallurgical processes and strategies.
MINERALS ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Lucio Rosso Neto, Carlos Henrique Borgert, Jose Roberto de Oliveira, Felipe Fardin Grillo, Gabriel Valerio Pereira Manfredi, Jorge Luis Coleti, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenorio, David Batista Gesuino, Tiago Elias Allievi Frizon, Eduardo Junca
Summary: This study investigates the potential of lime sludge as a fluxing material in pelletization and proposes an alternative route for waste utilization.
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2023)
Article
Metallurgy & Metallurgical Engineering
Jose Helber Vinco, Amilton Barbosa Botelho Junior, Heitor Augusto Duarte, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenorio
Summary: This study investigated the adsorption process and reaction kinetics for selectively recovering vanadium from an acid solution containing iron impurities. Four commercial resins were evaluated, and the pseudo-second order model best fit the experimental data for all resins. The chelating resin M4195 showed the highest vanadium recovery and lowest iron adsorption. The findings provide essential kinetic data for industrial applications.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)