Review
Environmental Sciences
S. Ragasri, P. C. Sabumon
Summary: Global meat consumption is increasing with around 253 million metric tons of meat produced in 2020. As the population grows and food preferences change, the trend of meat consumption is expected to continue. Slaughterhouse waste, including both solid and liquid waste, increases with animal slaughtering. While developed countries have various technologies for slaughterhouse waste management, developing countries like India still lack effective utilization of these technologies.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agricultural Engineering
Shouvik Saha, Mayur B. Kurade, Geon-Soo Ha, Sean S. Lee, Hyun-Seog Roh, Young-Kwon Park, Byong-Hun Jeon
Summary: Different inoculum to slaughterhouse waste ratios influence digester performance, substrate utilization, and methane yield through microbial shifts and metabolic syntrophy. Interactions among acetogenic and acetate-oxidizing species with methanogens play a critical role in improving methanogenic activity. Syntrophic interactions among core microbiota induce major metabolic activities and quorum sensing.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Maria Jose Galvan, Salvador Degano, Mara Cagnolo, Analia Becker, Jorge Hilbert, Mauren Fuentes, Diego Acevedo
Summary: The co-digestion of pasteurized pig slaughterhouse waste (SW) and corn sieving waste (CSW) improved biogas yield compared to mono-digestion, with CSW being a suitable substrate to balance C/N and enhance biogas production. Optimal biogas yield and inhibition parameters were achieved with the lowest TS content and C/N ratios, particularly with a SW/CSW mixture of C/N 15 and 5% TS. Pilot scale experiments demonstrated significant increases in biogas yield, methane yield, and Organic Matter Removal using the C/N 15 mixture compared to C/N 20, with variations in gas composition but similar methane content at pilot scale.
BIOMASS & BIOENERGY
(2021)
Article
Agricultural Engineering
Zhaodi Guo, Muhammad Usman, Saeed A. Alsareii, Farid A. Harraz, M. S. Al-Assiri, Mohammed Jalalah, Xiangkai Li, El-Sayed Salama
Summary: The study found that a 2% loading of SHW was optimal for anaerobic digestion, resulting in the highest biomethane production and VFAs consumption. Higher concentrations of SHW led to decreased biomethane production and prolonged lag-phase, with accumulation of VFAs and ammonia inhibiting biomethane and methanogenic archaea production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Zhaodi Guo, Mohammed Jalalah, Saeed A. Alsareii, Farid A. Harraz, Nandini Thakur, El-Sayed Salama
Summary: This study investigated the effects of adding different proportions of biochar on biogas production, volatile fatty acids (VFAs), microbial communities, and enzymes. The results showed that 0.5% biochar significantly increased biogas and VFAs production, and also promoted the abundance of specific bacteria and archaea and the activities of corresponding enzymes under certain conditions.
Article
Green & Sustainable Science & Technology
Shunli Wang, Kamalakanta Sahoo, Umakanta Jena, Hongmin Dong, Richard Bergman, Troy Runge
Summary: This study compared the environmental impacts of traditional rendering and anaerobic digestion technology in treating slaughterhouse waste. The results showed that anaerobic digestion was more effective in reducing greenhouse gas emissions and saving energy, with significant environmental benefits.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Nga Tran Thi Viet, Duc Canh Vu, Thu Hang Duong
Summary: This study evaluated a submerged flat sheet anaerobic membrane bioreactor (AnMBR) system's performance in treating wastewater from a slaughterhouse in Hanoi at different hydraulic retention times (HRT) of 8 to 48 hours. The system achieved high removal efficiencies for suspended solids (SS) and chemical oxygen demand (COD) at an optimum HRT of 24 hours. Importantly, the system maintained stable operation without flux decay and membrane fouling.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Jeremy Nyitrai, Xavier Fonoll Almansa, Kuang Zhu, Sudhanya Banerjee, Troy R. Hawkins, Meltem Urgun-Demirtas, Lutgarde Raskin, Steven J. Skerlos
Summary: A consequential life cycle assessment was used to compare the environmental impacts of different strategies for managing food waste and sewage sludge. The results showed that the two-phase anaerobic digestion system was the most effective in maximizing energy recovery and reducing environmental impacts. However, both approaches had environmental burdens when the electric grid intensity was low.
Article
Environmental Sciences
Eneko Suarez, Montserrat Tobajas, Angel F. Mohedano, M. Angeles de la Rubia
Summary: This study evaluated the anaerobic co-digestion of food waste and garden and park waste, as well as the hydrothermal treatment of each waste and the anaerobic co-digestion of raw biowastes with process water. The results showed that anaerobic digestion was the best option for energy recovery from food waste, while the solid fraction generated from hydrothermal treatment had the highest energy recovery for garden and park waste. Additionally, the anaerobic co-digestion of food waste with process water improved process stability and achieved similar energy recovery to food waste alone.
Article
Energy & Fuels
Geraldo Jose Ferraresi de Araujo, Sonia Valle Walter Borges de Oliveira
Summary: In response to worsening climate issues, nations are focusing on developing renewable energy sources. Biomass, particularly swine biomass, can contribute to green competitive advantages in terms of cost for agricultural units. This article aims to analyze the economic, environmental, and energy potential of swine waste in breeding units and the Brazilian energy matrix. The results indicate that the use of swine biomass is economically viable, especially for the production of bioelectricity, biofertilizers, and biomethane. It is recommended to reformulate incentive policies, implement feed-in tariffs, and promote the use of biofertilizers to replace synthetic fertilizers.
ENERGY STRATEGY REVIEWS
(2023)
Article
Green & Sustainable Science & Technology
Arshid M. Ali, Ayyaz M. Nawaz, Hamad A. Al-Turaif, Khurram Shahzad
Summary: The waste generated from animal slaughtering during the Hajj period increases significantly, with substantial amounts being disposed of to landfills without recovery of materials or energy. Utilizing slaughterhouse waste for waste-to-energy production through sustainable management practices is economically feasible and has the potential to contribute significant revenue to the national economy.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2021)
Article
Environmental Sciences
C. E. Hollas, H. C. Rodrigues, A. C. Bolsan, B. Venturin, M. Bortoli, F. G. Antes, R. L. R. Steinmetz, A. Kunz
Summary: This study evaluates the technical, environmental, and economic benefits of four different configurations of swine waste treatment systems, aiming to promote decarbonization and circular economy in the swine industry. The results show the importance of prioritizing energy recovery through anaerobic digestion, providing increased economic benefits and minimizing environmental damage. Therefore, the SISTRATES(R) configuration presents the best design in a circular context, maximizing the recovery of energy and nutrients and reducing greenhouse gas emissions, ensuring the sustainability of the pig production chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Grzegorz Izydorczyk, Katarzyna Mikula, Dawid Skrzypczak, Anna Witek-Krowiak, Malgorzata Mironiuk, Katarzyna Furman, Mateusz Gramza, Konstantinos Moustakas, Katarzyna Chojnacka
Summary: The study transformed animal waste into liquid fertilizer, enriched with micronutrients, resulting in increased crop yield and grain nutrient density, as well as improved wheat flour quality.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
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
Environmental Sciences
S. Zahedi, M. Gros, J. L. Balcazar, M. Petrovic, M. Pijuan
Summary: This study investigated the anaerobic treatment of slaughterhouse wastewater at psychrophilic, mesophilic, and thermophilic temperatures. The highest methane yield was obtained at mesophilic temperature (35 degrees C) and the highest relative abundance of antibiotic resistance genes was found at thermophilic temperature (53 degrees C). Pharmaceuticals removal efficiency varied at different treatment temperatures, with high removal rates observed for certain antibiotics at thermophilic temperature.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Energy & Fuels
Muhamad Norkhizan Abdullah, Ahmad Fitri Yusop, Rizalman Mamat, Mohd Adnin Hamidi, Kumarasamy Sudhakar, Talal Yusaf
Summary: This review article aims to reveal the effects of alcohol on the performance, combustion behavior, and emission characteristics of SI engines. Methanol, ethanol, and butanol fuel qualities are considered, and the performance of SI engines with alcohol-gasoline blends is investigated. The results show that alcohol-gasoline blends can reduce CO, NOx, and UHC emissions, but lead to increased fuel consumption and decreased thermal efficiency.
Article
Energy & Fuels
Mohd Kamal Kamarulzaman, Sakinah Hisham, K. Kadirgama, D. Ramasamy, M. Samykano, R. Saidur, Talal Yusaf
Summary: The present analysis investigates the effect of hybrid nanocellulose and copper (II) oxide nanoparticles on the thermophysical properties of engine oil. The results show that adding CNC-CuO nanoparticles can significantly improve the lubricity of the engine oil, especially at a concentration of 0.5%.
Article
Energy & Fuels
Mohammed A. Fayad, Mohammed Sobhi, Miqdam T. Chaichan, Tawfik Badawy, Wisam Essmat Abdul-Lateef, Hayder A. Dhahad, Talal Yusaf, Wan Nor Roslam Wan Isahak, Mohd S. Takriff, Ahmed A. Al-Amiery
Summary: The development of nano-additives in the field of reducing exhaust emissions has increased in recent years. Experimental investigation on particulate matter (PM) and nitrogen oxides (NOX) characteristics showed that adding titanium dioxide (TiO2) nanoparticles to a blend of castor oil methyl ester, diesel fuel, and exhaust gas recirculation (EGR) resulted in a decrease in NOX emissions and smaller soot nanoparticles. The addition of TiO2 nanoparticles also increased brake thermal efficiency and decreased BSFC, while maintaining NOX emissions at a level parallel with diesel.
Article
Energy & Fuels
Hamza Djeloud, Mustafa Moussaoui, Rahmani Kouider, Awf Al-Kassir, Juan Pablo Carrasco-Amador
Summary: The present study predicts residual stresses in stainless steel plates using the single-pass TIG welding process and in stainless steel pipes using the two-pass TIG welding process. The effect of heat exchange between welding material and the environment is investigated. Two parameters - welding bead thickness and torch displacement speed - are found to significantly influence residual stresses. The finite element model used is validated experimentally and the obtained results are in agreement with reference results. Microstructural analysis of different areas after welding is also conducted.
Article
Chemistry, Analytical
Yaseen Ahmed Mohammed Alsumaidaee, Chong Tak Yaw, Siaw Paw Koh, Sieh Kiong Tiong, Chai Phing Chen, Talal Yusaf, Ahmed N. Abdalla, Kharudin Ali, Avinash Ashwin Raj
Summary: This study systematically analyzes three deep learning techniques for detecting corona faults in metal-clad switchgear. The hybrid 1D-CNN-LSTM model is found to have high accuracy in both the time and frequency domains, making it the most suitable model for detecting corona faults.
Article
Engineering, Biomedical
Jesus M. Rodriguez-Rego, Laura Mendoza-Cerezo, Antonio Macias-Garcia, Alfonso C. Marcos-Romero, Juan P. Carrasco-Amador
Summary: Additive manufacturing technologies have many medical applications, mainly due to advancements in the development of materials used for customized models. However, obtaining correct cell viability values remains a challenge, which is why three-dimensional bioprinting is a valuable tool that requires extensive study. In this work, the comparison of 3D bioprinting technology using hydrogels and thermoplastics for biomimetic parts development is proposed. The goal is to study the printability of different materials and determine their ability to produce biomimetic structures with structural guarantees. Gelatin methacryloyl (GelMA) 5% was found to be the only material capable of generating biomimetic structures faithful to the designed 3D model. Additionally, it is shown that further development of hydrogels is needed to match the results achieved by thermoplastic materials in bioprinting.
INTERNATIONAL JOURNAL OF BIOPRINTING
(2023)
Article
Energy & Fuels
Abdelkader Mahammedi, Naas Toufik Tayeb, Kouider Rahmani, Awf Al-Kassir, Eduardo Manuel Cuerda-Correa
Summary: This study explores the potential application of microfluidics in the field of bioenergy, with a focus on the energy potential of biogas derived from vine shoots. The enhanced mixing capability of a micromixer has been analyzed and validated using different Reynolds numbers. The results show that high-quality mixtures can be achieved at specific geometrical angles.
Review
Green & Sustainable Science & Technology
Sadiq T. Bunyan, Hayder A. Dhahad, Dhamyaa S. Khudhur, Talal Yusaf
Summary: Proton exchange membrane fuel cell (PEMFC) is used for zero-emission energy generation. However, there are several issues in PEMFC, such as reactant mal-distribution, water management, and mass transport. Design parameters of the flow field can overcome these issues and improve cell performance.
Article
Energy & Fuels
Jesus M. Rodriguez-Rego, Laura Mendoza-Cerezo, Alfonso C. Marcos-Romero, Juan P. Carrasco-Amador, A. Macias-Garcia
Summary: The sharp increase in energy consumption has led to a demand for new energy storage systems or the improvement of existing ones. Supercapacitors hold promise to meet this challenge. This study focuses on modifying the composition of carbon-based electrodes to improve the storage system of supercapacitors. The results show that electrodes with a varied pore structure, especially with wide mesopores, perform better in terms of capacity, power, and energy parameters.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Jesus M. Rodriguez-Rego, Juan Pablo Carrasco-Amador, Laura Mendoza-Cerezo, Alfonso C. Marcos-Romero, Antonio Macias-Garcia
Summary: Supercapacitors have shown great potential as an energy storage device to solve today's energy problems. This work proposes a design and fabrication method using 3D printing technologies to improve supercapacitor design and address issues such as collector parallelism, corrosive processes, and pad breakage. The model also includes a materials guide to assist researchers in further developing supercapacitors and extending their capabilities.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Mohammad Shalby, Mohamed R. Gomaa, Ahmad Salah, Abdullah Marashli, Talal Yusaf, Mohamd Laimon
Summary: Wind turbine farms need efficient operation and maintenance strategies to ensure long-term profitability and cost-effectiveness. This study examines the impact of air filter clogging on wind turbine nacelle temperature and performance using data from wind farms in southern Jordan. The findings show that uncleaned air filters cause inefficient heat dissipation, higher nacelle temperatures, and reduced power production.
Meeting Abstract
Surgery
L. Mendoza Cerezo, J. M. Rodriguez Rego, A. Macias Garcia, J. P. Carrasco Amador, A. C. Marcos Romero, A. Diaz Parralejo
BRITISH JOURNAL OF SURGERY
(2023)
Meeting Abstract
Surgery
J. M. Rodriguez Rego, L. Mendoza Cerezo, A. Macias Garcia, J. PCarrasco Amador, A. C. Marcos Romero, A. Diaz Parralejo
BRITISH JOURNAL OF SURGERY
(2023)
Review
Environmental Studies
Ali Alhammadi, Jeffrey Soar, Talal Yusaf, Bashar Mahmood Ali, Kumaran Kadirgama
Summary: This paper reviews the critique of procurement approaches in the petroleum and natural gas sectors, highlighting the importance of strengthening buyer-supplier relationships. It identifies limitations in existing research and suggests directions for future studies.
EXTRACTIVE INDUSTRIES AND SOCIETY
(2023)
Article
Computer Science, Information Systems
Yaseen Ahmed Mohammed Alsumaidaee, Johnny Koh Siaw Paw, Chong Tak Yaw, Sieh Kiong Tiong, Chai Phing Chen, Talal Yusaf, Foo Benedict, Kumaran Kadirgama, Tan Chung Hong, Ahmed N. Abdalla
Summary: In this paper, a hybrid model (1D-CNN-LSTM) is proposed for fault detection in medium voltage switchgear. The model achieved 100% accuracy in both the time and frequency domains for classifying faults, and 98.4% accuracy in detecting corona faults in the time domain. This approach has significant potential to improve the safety of medium voltage switchgear.
