Article
Green & Sustainable Science & Technology
Lolita Cueva Zepeda, Gregory Griffin, Kalpit Shah, Ibrahim Al-Waili, Rajarathinam Parthasarathy
Summary: This study investigates the effects of different suspension media on the stability, rheology, and higher heating value (HHV) of a biochar-based slurry biofuel. The slurry was formed using rice straw biochar and water or ethanol-water mixtures. The addition of surfactants improved the stability and reduced viscosity, with the lowest viscosity observed in the ethanol-based slurry. The HHV was also highest in the ethanol-based slurry. The energy assessment showed that this biofuel technology could be a suitable alternative to traditional liquid and gas fuel production methods.
Article
Environmental Sciences
Kavya Arun Dwivedi, Song-Jeng Huang, Chin-Tsan Wang, Sunil Kumar
Summary: The study provides a comprehensive analysis of various techniques to enhance the efficiency of microbial fuel cells, focusing on optimizing power generation and reducing energy losses.
Article
Thermodynamics
Behzad Shojaei, Iman Khazaee
Summary: The study introduces a dynamic, one-dimensional mathematical model for MFCs with a two-chamber structure and multi-species biofilm, coupling energy, mass, and charge conservation equations. The model's parameters were estimated and validated through experimental data, predicting the influence of temperature, boundary conditions, and substrate concentration variations on MFC performance. The model showed that power density can increase by 22.5% per 10 degrees C temperature increase at the maximum point, providing insights for optimizing design and operational conditions in MFCs.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Article
Biophysics
Jeetendra Prasad, Ramesh Kumar Tripathi
Summary: In this study, a PMS system based on SMFC was developed to charge a cell phone battery by increasing voltage through series or parallel connection and using a super capacitor to prevent voltage reversal. It was found that only module-5 of the stack SMFCs could provide power to the PMS for extended periods.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Energy & Fuels
Hegazy Rezk, Abdul Ghani Olabi, Mohammad Ali Abdelkareem, Enas Taha Sayed
Summary: This paper investigates the optimal input parameters of a TCMFC using HHO and ANFIS modeling. The results demonstrate the superiority of the ANFIS-based model over RSM. Furthermore, the integration of HHO and ANFIS enhances the output power density of TCMFC.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Nur Atikah Aryanee Nadzri, Nazlina Haiza Mohd Yasin, Mimi Hani Abu Bakar, Suresh Thanakodi, Mohd Nur Ikhmal Salehmin, Mohd Sobri Takriff, Mohamad Faisal Ni Aznan, Toshinari Maeda
Summary: This study utilized microalgae species Chlamydomonas sp. (UKM6) and Scenedesmus sp. (UKM9) as the terminal electron acceptor in the cathode chamber of photosynthetic microbial desalination cells (PhMDC). The PhMDC-UKM9 and UKM6 achieved power densities of 1942 mW/m3 and 1714 mW/m3, with desalination rates of 44% and 32% respectively. The local microalgae species demonstrated integrated power production, wastewater treatment, and water purification comparable to commercial microalgae.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Chemistry, Physical
Devaraj Thiruselvi, Ponnusamy Senthil Kumar, Madhava Anil Kumar, Chyi-How Lay, Salma Aathika, Yuvarani Mani, D. Jagadiswary, Anuradha Dhanasekaran, Palaniyandi Shanmugam, Subramanian Sivanesan, Pau-Loke Show
Summary: The review discusses the significance of renewable biogas production technology in reducing greenhouse gas emissions and addressing global warming, highlighting the importance of sustainable techniques in meeting energy demands. Anaerobic digestion for biogas production from waste is recognized as a leading green energy solution for environmental management and meeting global energy challenges.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Analytical
L. L. Z. Cueva, G. J. Griffin, L. P. Ward, S. Madapusi, K. Shah, R. Parthasarathy
Summary: This study investigates the pre-treatment of rice straw with chemical additives for biochar production. The optimized conditions result in increased biochar yield, higher heating value, and lower ash content.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Multidisciplinary Sciences
Tran Thien Cuong, Hoang Anh Le, Nguyen Manh Khai, Pham Anh Hung, Le Thuy Linh, Nguyen Viet Thanh, Ngo Dang Tri, Nguyen Xuan Huan
Summary: The study reveals the significant potential of rice straw in Vietnam as a biomass energy source for power plants, contributing to the country's energy security and CO2 emission reduction. However, the biomass energy sector in Vietnam still faces limitations and obstacles that need to be addressed for further development.
SCIENTIFIC REPORTS
(2021)
Article
Agronomy
Veronika Chaloupkova, Tatiana Ivanova, Petr Hutla, Monika Spunarova
Summary: Rice straw is a potential feedstock for biofuel production due to its abundance, but ash formation during combustion is a challenge. Adding calcium-based additives can increase ash melting temperatures, reducing the risk of equipment damage caused by ash sintering.
Review
Environmental Sciences
Baskaran Abirami, Manikkam Radhakrishnan, Subramanian Kumaran, Aruni Wilson
Summary: Global warming has various effects on ocean ecosystems, including temperature, acidification, oxygen content, circulation, stratification, and nutrient inputs, posing a serious threat to the metabolism and distribution of marine microbes and affecting the overall ecosystem functioning.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Energy & Fuels
Mohd Ridhwan Adam, Arif Akmal Mohamed Hassan, Mohd Hafiz Dzarfan Othman, Mohd Hafiz Puteh, Ahmad Fauzi Ismail, Mukhlis A. Rahman, Juhana Jaafar
Summary: Microbial fuel cells (MFCs) are a technology that can treat wastewater and generate electricity simultaneously, but the cost and operational concerns have limited their practical application. This study shows the potential of a modified membrane composed of crosslinked polyvinyl alcohol (PVA) and zirconium phosphate (ZrP) to enhance the performance of MFCs.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
T. Van Limbergen, R. Bonne, J. Hustings, R. Valcke, S. Thijs, J. Vangronsveld, J. Manca
Summary: The plant microbial fuel cell is an interesting technology that combines plants and bacteria to generate electricity. Compared to photovoltaics, it has attractive features such as low cost, simplicity, ability to work at night, and the capability to act as environmental sensors and for environmental remediation. Despite its relatively low efficiency, it holds a unique position in the field of environmental, renewable, and solar energy research.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Green & Sustainable Science & Technology
Lihua Qiu, Li He, Yu Kang, Dongzhe Liang
Summary: This study estimates and compares the technical potentials of enhanced geothermal systems (EGS) between a past period and a future period. The results indicate an increase in EGS technical potential in the future, with Russia projected to surpass China as the country with the highest potential.
Article
Energy & Fuels
Jinyu Tan, Dayong Yu, Junfa Yuan, Hongguo Wu, Hangyu Luo, Heng Zhang, Xiaobing Li, Hu Li, Song Yang
Summary: A novel ternary deep eutectic solvent (DES) was designed for wheat straw pretreatment, which achieved non-condensed lignin and high-yield fermentable sugars. The introduction of ethylene glycol into the DES protected lignin structure and improved enzymatic digestibility of cellulose. Trichosporon cutaneum cultivated in the waste liquid and residue hydrolysate produced 8.7 g microbial lipid per 100 g wheat straw, surpassing previous reports.
Article
Engineering, Environmental
Taehui Nam, Sunghoon Son, Eojn Kim, Huong Viet Hoa Tran, Bonyoung Koo, Hyungwon Chai, Junhyuk Kim, Soumya Pandit, Anup Gurung, Sang-Eun Oh, Eun Jung Kim, Yonghoon Choi, Sokhee P. Jung
ENVIRONMENTAL ENGINEERING RESEARCH
(2018)
Article
Biochemistry & Molecular Biology
Anup Gurung, Woo-Chang Kang, Beom-Soo Shin, Ju Sik Cho, Sang-Eun Oh
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2014)
Article
Agricultural Engineering
Sang-Eun Oh, Joung Yee Yoon, Anup Gurung, Dong-Jin Kim
BIORESOURCE TECHNOLOGY
(2014)
Article
Forestry
Shanti Shrestha, Bhaskar Singh Karky, Anup Gurung, Rajesh Bista, Ole Reidar Vetaas
SMALL-SCALE FORESTRY
(2013)
Article
Agronomy
Anup Gurung, Om Prakash Gurung, Rahul Karki, Sang Eun Oh
EMIRATES JOURNAL OF FOOD AND AGRICULTURE
(2013)
Article
Environmental Sciences
Sedky H. A. Hassan, Anup Gurung, Woo-chang Kang, Beom-Soo Shin, Mostafa Rahimnejad, Byong-Hun Jeon, Jung Rae Kim, Sang-Eun Oh
Article
Water Resources
Anup Gurung, Sanot Adhikari, Raju Chauhan, Sudeep Thakuri, Selina Nakarmi, Sarita Ghale, Bhawani S. Dongol, Deepak Rijal
Article
Engineering, Environmental
Heonseop Eom, Sami Flimban, Anup Gurung, Heejun Suk, Yongcheol Kim, Yong Seong Kim, Sokhee P. Jung, Sang-Eun Oh
ENVIRONMENTAL ENGINEERING RESEARCH
(2020)
Article
Water Resources
Sanot Adhikari, Anup Gurung, Raju Chauhan, Deepak Rijal, Bhawani S. Dongol, Dibit Aryal, Rocky Talchabhadel
Summary: This study conducted in the western hilly areas of Nepal inventoried and mapped over 4,222 springs from five different watersheds. It showed that more than 50% of the spring sources were found under natural conditions, and changes in water discharge from springs were related to rainfall patterns. The study revealed a significant fluctuation in water discharge across spring sources, indicating a shortage of drinking water and domestic water during dry months due to intra-annual variation and decreasing flow over recent years.
Article
Environmental Sciences
Parbati Pandey, Anup Gurung
Summary: Soil erosion has significant impacts on land productivity, water resources, and the entire watershed. In an agrarian region like Jhimruk, known as the rice bowl of Nepal, the loss of top soil can have severe consequences for land productivity. Therefore, it is important to identify areas at risk of degradation and assess erosion potential to plan effective mitigation measures. This study used the Revised Universal Soil Loss Equation (RUSLE) model in a Geographic Information System (GIS) to estimate soil loss in the Jhimruk watershed, Lumbini Province, Nepal.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Energy & Fuels
Anup Gurung, Bhim Sen Thapa, Seong-Yun Ko, Ebenezer Ashun, Umair Ali Toor, Sang-Eun Oh
Summary: We developed a strategy for efficiently reducing nitrates in microbial fuel cells (MFCs) using a granular activated carbon (GAC)-biocathode. The GAC was developed by acclimatizing and enriching denitrifying bacteria under a redox potential generated from MFCs. The GAC-biocathode demonstrated excellent capacitive property and can actively reduce nitrate for over thirty days with different cathode materials and circulation speeds.
Article
Water Resources
Raju Chauhan, Archana Shrestha, Sang Eun Oh, Anup Gurung
Summary: First, a case study was conducted to understand the spring status in a semi-urban area. Then, the existing knowledge of nationwide springs status was synthesized to analyze the current state and future implications of spring conservation in Nepal. The study revealed that the discharge rate of 72% of springs in semi-urban areas has been decreasing in the past decade, and these areas faced higher contamination of biological pollutants compared to rural areas. The research also showed that springs in Nepal are degrading rapidly due to factors such as declining rainfall, haphazard infrastructure development, and excessive exploitation of spring resources. Existing policies focusing on basin and watershed levels are not effective in addressing local water issues at the springshed level.
Review
Geosciences, Multidisciplinary
Anup Gurung, Olli Dahl, Kaj Jansson
GEOSYSTEM ENGINEERING
(2016)
Article
Geosciences, Multidisciplinary
Anup Gurung, Beom-Soo Shin, Sang-Eun Oh
GEOSYSTEM ENGINEERING
(2015)
