Article
Green & Sustainable Science & Technology
Shengbo Ge, Peter Nai Yuh Yek, Yoke Wang Cheng, Changlei Xia, Wan Adibah Wan Mahari, Rock Keey Liew, Wanxi Peng, Tong-Qi Yuan, Meisam Tabatabaei, Mortaza Aghbashlo, Christian Sonne, Su Shiung Lam
Summary: Microwave pyrolysis is a promising technique for converting agricultural wastes into biofuels. However, challenges remain in continuous production and there is a need for further research in microwave heating, product yield, and reactor design. Despite these challenges, microwave valorization offers environmental and economic benefits as an alternative energy generation route.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Review
Green & Sustainable Science & Technology
Smita Dutta, M. Suresh Kumar
Summary: Floral waste management is a global issue that needs to be addressed to solve environmental and health problems. Recycling and using such waste to produce chemicals and value-added products is a promising solution. Various technologies can further utilize this waste.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Biotechnology & Applied Microbiology
Swati Sharma, Rahul Verma, Sahil Dhull, Soumen K. Maiti, Lalit M. Pandey
Summary: The research focuses on producing biosurfactants using waste cooking oil as the sole carbon source through P. aeruginosa in batch and fed-batch bioreactor systems. By opting for a fed-batch oil feeding strategy, the biosurfactant production could be significantly enhanced, showing good emulsification stability and antibacterial activity.
BIOPROCESS AND BIOSYSTEMS ENGINEERING
(2022)
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
Anesthesiology
Jefferson Sanchez-Chicaiza, Lizeth Garcia-Salazar, Maria Antonella Ortiz-Baez, Mishelle Culcay-Garcia
Summary: The use of electrical and electronic equipment (EEE) has led to a significant increase in waste electrical and electronic equipment (WEEE) worldwide, but only 17% of it is being treated. The conventional methods for processing and extracting metals from printed circuit boards (PCBs) in WEEE are highly polluting. Therefore, a new eco-friendly strategy is proposed in this research to recover Cu from WEEE using a batch bioreactor.
Article
Agricultural Engineering
Kanhaiya Lal Maurya, Ganesh Swain, Ravi Kumar Sonwani, Ankur Verma, Ram Sharan Singh
Summary: This study focuses on the treatment of dye-containing wastewater using modified biocarriers in packed bed bioreactors. Lysinibacillus sp. immobilized polyurethane foam combined with activated carbon and sodium alginate was used for the biodegradation of Congo red dye, achieving a high dye removal efficiency.
BIORESOURCE TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Bruno Gouveia, Elizabeth Duarte, Aires dos Santos, Edgar Fernandes
Summary: Anaerobic digestion plays an important role in reducing greenhouse gas emissions and transitioning to a circular economy by creating value from waste. A developed analytical model accurately describes the kinetics of biogas production, reducing the need for time-consuming batch tests. The model has been successfully tested and provides valuable insights into the internal processes of anaerobic digestion and substrate characteristics.
Article
Engineering, Manufacturing
Ashish M. Gujarathi, Swaprabha P. Patel, Badria Al Siyabi
Summary: Lysine production via fermentation process is an economical method that involves conflicting objectives. Two multi-objective differential evolution algorithms, MODE-III and MODE-III-IMS, are used to optimize the control parameters of the lysine bioreactor. The yield and productivity objectives are studied, and the corresponding Pareto fronts are reported. Tournament selection and penalty constraint handling methods are compared for both algorithms. The higher bound of feeding rate (2.0 L/s) is found to be the most optimal. The MODE-III-IMS algorithm converges faster to the Pareto front. The COPRAS method is used for Pareto ranking, and the best optimal solution is reported using the decision tree method with acceptable accuracy.
MATERIALS AND MANUFACTURING PROCESSES
(2023)
Article
Engineering, Environmental
Ashfaq Ahmad, Fawzi Banat, Hanifa Taher
Summary: Valorization of biowaste into lactic acid by indigenous microbiota has gained attention due to its potential in resource recovery and environmental benefits. Batch and cyclic fermentation processes were compared in this study, showing that enzymatic pretreatment improved lactic acid production, especially in cyclic fermentation. The use of an Artificial Neural Network model helped optimize process parameters and predict lactic acid concentration accurately.
Article
Energy & Fuels
Marina Baizharikova, Gulmira Tlebayeva, Manat Tlebayev, Zhenish Beksultanov, Rysty Tazhiyeva
Summary: Due to economic growth in agriculture, the number of cattle in fattening and dairy farms is increasing, resulting in a large amount of solid and liquid cattle manure. This study developed a three-stage methane fermentation biogas plant with coarse and fine grinding of cattle waste to optimize and manage the biogas production. The innovative elements of the plant include uniformity of the substrate, increased biogas yield, and reduced energy consumption for heating. The implementation of this plant would enable farmers to dispose of livestock waste and generate electricity and heat using biogas.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Green & Sustainable Science & Technology
Ali Qasemian, Sina Jenabi Haghparast, Pouria Azarikhah, Meisam Babaie
Summary: The study found that increasing compression ratio can increase the heat loss to brake power ratio (Qht/Wb), but higher compression ratios lead to lower (Q)over dot(ex)/(Q)over dot(ht) ratios for all studied fuels. Additionally, there is a direct relationship between ethanol content in fuel and the exhaust power to heat loss ratio (Qex/Qht), as higher ethanol content results in a higher ratio.
Article
Green & Sustainable Science & Technology
Bhushan P. Gandhi, Saanu Victoria Otite, Esther A. Fofie, Alfonso Jose Lag-Brotons, Lawrence I. Ezemonye, Kirk T. Semple, Alastair D. Martin
Summary: This anaerobic digestion (AD) study examines the impact of inoculum to substrate ratio (ISR) on methanogenesis viability, revealing the acidification trend and biogas production variation under different ISR conditions.
Article
Energy & Fuels
Abderrahmane Lahbab, Mohammed Djaafri, Slimane Kalloum, Ali Benatiallah, M. R. Atelge, A. E. Atabani
Summary: This study examined the biogas production from vegetable peel and cow dung without external inoculum, with experimental results showing that a CDR of 3:1 resulted in optimal methane production. A new mathematical model based on CDR and VS accurately predicted methane production and was validated against experimental results.
Article
Biotechnology & Applied Microbiology
Jorge H. Santoyo-Garcia, Laura E. Walls, Marissa Valdivia-Cabrera, Koray Malci, Nestor Jonguitud-Borrego, Karen J. Halliday, Leonardo Rios-Solis
Summary: In this study, an in situ product recovery method using three different commercial resins was used to increase the production of oxygenated acetated taxanes, including the anticancer drug paclitaxel. Through screening and optimization, the best resin combination and concentration were determined, resulting in a taxane yield of 783 mg/L. Additionally, the use of resin combinations led to the discovery of 8 uncharacterized taxanes. The resin treatment also reduced the production of reactive oxygen species in yeast cell waste.
BIOTECHNOLOGY AND BIOENGINEERING
(2023)
Article
Energy & Fuels
Iman Kasih Telaumbanua, Yoshihiko Oishi, Daichi Ogawa, Hideki Kawai, Himsar Ambarita
Summary: This study confirms the feasibility of using waste cooking oil biodiesel combined with biogas as a dual fuel in diesel engines. Increasing the methane content of biogas improves engine performance, particularly at high loads, and can achieve higher brake thermal efficiency. By increasing the energy ratio, nitrous oxide emissions can be significantly reduced, with an optimum biogas energy ratio range of 60-90%.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Ecology
Abdelrahim Elobeid Jahelnabi, Jun Zhao, ChuanHua Li, Sona Mohammed Fadoul, YinFang Shi, Amir Khalid Bsheer, Yousif Elnour Yagoub
Contemporary Problems of Ecology
(2016)
Article
Water Resources
Abubaker Omer, Weiguang Wang, Amir K. Basheer, Bin Yong
HYDROLOGY RESEARCH
(2017)
Article
Agriculture, Multidisciplinary
Abubaker B. Ali, Li Hong, Nazar A. Elshaikh, Amir K. Basheer, Yan Haofang
INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY
(2016)
Article
Water Resources
Abubaker Omer, Weiguang Wang, Amir K. Basheer, Bin Yong
HYDROLOGY RESEARCH
(2017)
Article
Geosciences, Multidisciplinary
Amir K. Basheer, Haishen Lu, Abubaker Omer, Abubaker B. Ali, Abdeldime M. S. Abdelgader
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2016)
