Shimelash Molla Kassaye | Environmental Science | Editorial Board Member

Dr. Shimelash Molla Kassaye | Environmental Science | Editorial Board Member

Mattu University | Ethiopia

Dr. Shimelash Molla Kassaye is a highly dedicated scholar and researcher specializing in Hydrology and Water Resources Management, with an extensive academic background and a strong record of scientific contributions in the field of environmental and water sciences. He currently serves as an Assistant Professor at Mattu University, Ethiopia, where he continues to advance research and teaching in hydrology, climate change, and watershed management. His professional journey reflects consistent excellence and commitment to solving pressing environmental and water-related challenges affecting the African continent. Dr. Kassaye earned his Ph.D. in Water Management (Hydrology and Water Resources Management) from the African Centre of Excellence in Water Management (ACEWM) at Addis Ababa University in 2024. His doctoral research, titled “Evaluating the Hydrological Dynamics under Land Use/Cover and Climate Change in the Baro River Basin, Ethiopia,” focused on understanding the complex interactions between climate variability, land use change, and hydrological responses in one of Ethiopia’s key river basins. His research offers vital insights into sustainable water resource management and policy planning under changing climatic conditions. Prior to his Ph.D., he obtained an M.Sc. in Hydraulic Engineering from Jimma University in 2017 with an outstanding CGPA of 3.88/4.00 and a B.Sc. in Hydraulic and Water Resources Engineering from Arbaminch University in 2011. His professional experience spans over a decade of teaching, research, and academic service. Before assuming his current position, Dr. Kassaye worked as a Researcher and Lecturer at Mattu University (2014–2021) and as a Graduate Assistant at Arbaminch University (2012–2014). Through these roles, he has contributed significantly to the training of young engineers and scientists, supervising research projects, and integrating innovative technologies into water resource education and management practices. Dr. Kassaye’s research expertise covers a broad range of topics, including hydrologic modeling, climate change and variability, drought monitoring and prediction, integrated watershed management, natural resource management, and hydrometeorological risk assessment. His multidisciplinary approach, combining remote sensing, geospatial analysis, and hydrological modeling, enables comprehensive assessments of environmental systems under stress from both natural and anthropogenic factors. He has published multiple peer-reviewed scientific papers in high-impact international journals such as Water, Environmental Earth Sciences, Environmental Systems Research, and Earth. His publications have explored critical themes such as the sensitivity of meteorological dynamics to catchment variability, the integrated impact of land use and topography on hydrological extremes, and the quantification of climate change effects on streamflow dynamics. His academic excellence, combined with practical expertise and a strong publication record, positions him as a leading early-career researcher contributing to Ethiopia’s and Africa’s sustainable water resource management efforts. His dedication to advancing hydrological science underscores his commitment to building climate resilience and fostering sustainable development in vulnerable regions.

Profiles: Orcid | Google Scholar

Featured Publications

Kassaye, S. M., Tadesse, T., Tegegne, G., & Hordofa, A. T. (2024). Quantifying the climate change impacts on the magnitude and timing of hydrological extremes in the Baro River Basin, Ethiopia. Environmental Systems Research, 13(1), 1–15.

Belay, H., Melesse, A. M., Tegegne, G., & Kassaye, S. M. (2025). Flood inundation mapping using the Google Earth Engine and HEC-RAS under land use/land cover and climate changes in the Gumara Watershed, Upper Blue Nile Basin, Ethiopia. Remote Sensing, 17(7), 1283.

Malede, D. A., Elumalai, V., Andualem, T. G., Mekonnen, Y. G., Yibeltal, M., Kassaye, S. M., & others. (2025). Understanding flood and drought extremes under a changing climate in the Blue Nile Basin: A review. Environmental and Sustainability Indicators, 100638.

Kassaye, S. M., Tadesse, T., & Tegegne, G. (2024). Quantifying the climate change impacts on the magnitude and timing of hydrological extremes in the Baro River Basin, Ethiopia. Environmental Systems Research, 13(2).

Kassaye, S. M., Tadesse, T., Tegegne, G., Hordofa, A. T., & Malede, D. A. (2024). Relative and combined impacts of climate and land use/cover change for the streamflow variability in the Baro River Basin (BRB). Earth, 5(2), 149–168.

Kassaye, S. M., Tadesse, T., Tegegne, G., & Tadesse, K. E. (2022). The sensitivity of meteorological dynamics to the variability in catchment characteristics. Water, 14(22), 3776.

Kassaye, S. M., Tadesse, T., Tegegne, G., & Hordofa, A. T. (2024). Integrated impact of land use/cover and topography on hydrological extremes in the Baro River Basin. Environmental Earth Sciences, 83(2), 49.

Kassaye, S. M., Ebissa, T. N., Gutema, B. G., & Gurmesa, G. T. (2020). Site selection and design of mini hydropower plant for rural electrification in Keber River. American Journal of Electrical Power and Energy Systems, 9(5), 82–96.

Ebissa, T. N., Kassaye, S. M., & Malede, D. A. (2024). Hydrological response to climate change in Baro Basin, Ethiopia, using representative concentration pathway scenarios. Environmental Systems Research, 13(1), 42.

Waheed, A., Kousar, S., Khan, M. I., & Fischer, T. B. (2025). Environmental and Sustainability Indicators. Environmental and Sustainability Indicators.

Wu-Juan Sun | Soil remediation | Best Researcher Award | 13547

Assoc Prof Dr. Wu-Juan Sun | Soil remediation | Best Researcher Award 

Assoc Prof Dr. Wu-Juan Sun, Xi’an Shiou University, China

Dr. Wu-Juan Sun is an Associate Professor and Deputy Director of the Department of Applied Chemistry at Xi’an Shiyou University, China. Holding a Ph.D. in Chemistry from Northwest University, she has led impactful research since 2015 in Microbial Enhanced Oil Recovery (MEOR) and the bioremediation of petroleum-contaminated environments. Her work focuses on developing microbial activators for low-permeability reservoirs, field-scale remediation technologies, and green chemistry approaches such as photoinduced catalytic reactions. Dr. Sun has authored several high-impact publications and plays a key role in managing academic and research initiatives within her department.

Scopus

Education

Dr. Wu-Juan Sun (孙妩娟) began her academic journey with a strong foundation in the field of chemistry. She pursued her Ph.D. in Chemistry at Northwest University, Xi’an, China—one of the country’s leading institutions known for scientific research and innovation. Her doctoral research laid the groundwork for her future specialization in applied environmental chemistry and biotechnology, particularly within the realms of petroleum-based pollution control and microbial processes.

Her Ph.D. experience was characterized by a solid blend of theoretical learning and laboratory practice, giving her a deep understanding of organic chemistry, microbial systems, and environmental bioremediation techniques. This rigorous academic environment nurtured her scientific curiosity and prepared her for a career that would eventually bridge industrial challenges and microbial solutions.

Experience

Since 2015, Dr. Sun has been serving as an Associate Professor and Deputy Director of the Department of Applied Chemistry at Xi’an Shiyou University, a key institution in China’s petroleum and chemical engineering education landscape. In this dual role, she manages academic programming and research initiatives while also leading laboratory operations.

Her leadership at Xi’an Shiyou University has emphasized both innovation and mentorship. She has overseen numerous student research projects and collaborations with industrial partners, especially in the field of Microbial Enhanced Oil Recovery (MEOR) and environmental bioremediation. Her administrative role complements her research leadership, making her a central figure in shaping the university’s applied chemistry strategies.

Research Focus

Her pioneering work involves the development of microbial activators tailored for low-permeability oil reservoirs, aimed at maximizing crude oil extraction using environmentally sustainable processes. Her recent studies explore biodegradation using Chelatococcus daeguensis HB-4, revealing significant advancements in MEOR techniques. She has contributed significantly to the field-scale application of microbial consortia to remediate petroleum-contaminated soils and industrial oily sludge. Her 2024 publication in Environmental Geochemistry and Health detailed pilot-scale studies that have practical implications for real-world oil spill remediation. In line with sustainable development, Dr. Sun explores photoinduced catalytic reactions in organic synthesis. Her recent article in Organic Letters presents innovative [3+2] cycloaddition reactions, showing her ability to merge fundamental chemistry with applied environmental science.

Award and Recognition

Dr. Wu-Juan Sun has earned recognition within the scientific community through her peer-reviewed publications in internationally respected journals such as Bioresource Technology, Ecotoxicology and Environmental Safety, and World Journal of Microbiology & Biotechnology. Her collaborative work, often co-authored with leading scholars like Dr. C.-Y. Ke and Dr. X.-L. Zhang, underlines her academic credibility and teamwork skills.

Her research on bioremediation and MEOR has attracted institutional support, and her leadership as Deputy Director has positioned her as an influential voice in applied chemistry education and research in China.

Publications 

📘 Pilot-scale field studies on activated microbial remediation of petroleum-contaminated soil – Environmental Geochemistry and Health(2024) – cited by 5 articles.
📘 Microbial enhanced oil recovery (MEOR): recent development and future perspectives – Biotechnol(2024) – Cited by 13 articles.
📘Biotreatment of oil sludge containing hydrocarbons by Proteus mirabilis SB – Environmental Technology & Innovation(2021) – Cited by 21 articles.