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Recent Submissions

Single and Combined Alkaline, Thermal and Enzymatic Disintegration Methods on Sludge Disintegration and Anaerobic Digestion Bahçecioğlu, Elif N.; Sakınmaz, K. Eda; Altuntaş, Oğuzhan; Ayça, İpek; Şimşek, İrem; Sanin, Faika Dilek (2026-09-01) Waste Activated Sludge (WAS) produced from wastewater treatment plants (WWTPs) is a significant source of energy due to rich organic matter content. However, its disposal and recovery presents significant environmental cha...
Degradation of chloridazon in aqueous solutions by UV/H2O2 process: Performance, kinetics, and degradation pathways Ulu, Hatice Bike; Değermenci̇, Nejdet; Dilek, Filiz Bengü (2026-08-09) This study investigated the removal of chloridazon (CLZ) by the UV/H2O2 process. The effect of initial CLZ concentration, H2O2 concentration, initial pH, and the temperature was sought. The rate at which CLZ disappeared fr...
Strategic discharge or full reuse? Circular water economy assessment under WEFE-Climate Change Nexus Yapan, Bilge Irem; Köksal, Gülser; Alp, Emre (2026-08-01) In an era marked by resource scarcity and climate instability, circular water economy (CWE) is a critical paradigm for sustaining water security, ecosystem integrity, and socio-economic resilience. On the other hand, it is...
Aligning HorizonScanning Approaches with DifferingNeeds and Topics at the Science-Policy Interface on Chemicals,Waste, and Pollution Sigmund, Gabriel; Barra, Ricardo O.; Bertram, Michael G.; Diamond, Miriam L.; Ford, Alex T.; İmamoğlu, İpek; Li, Jinhui; Lohmann, Rainer; Schaffer, Andreas; Scheringer, Martin; Sebkova, Katerina; Starling, Maria Clara V. M.; Suzuki, Noriyuki; Vlahos, Penny; Weber, Roland; Brooks, Bryan W. (2026-07-13) Knowledge on chemicals, waste, and pollution is shaped by geographical, financial, and disciplinary biases, which can cause blind spots for key emerging issues, including those relevant to low income countries and vulnerab...
ANOVA-based comparative study for landfill age and climate impacts on landfill leachate characteristics Ergene, Didar; Aksoy, Ayşegül; Sanin, Faika Dilek (2026-07-01) This study investigates the combined effects of precipitation and landfill age on leachate characteristics using one-way ANOVA to identify statistically significant differences among impact groups. The primary objective is...
EmergingContaminants in Treated Wastewater Reuseunder Water Scarcity: A Hidden Risk in the Middle East, North Africa,and Turkiye Haddaoui, Imen; Marasco, Ramona; Semerjian, Lucy; Yılmazel Tokel, Yasemin Dilşad; Mahjoub, Olfa; Hong, Pei-Ying (2026-07-01)
Enhancing the governance of the Water-Energy-Food-Ecosystem (WEFE) nexus in watersheds through combined stakeholder and social network analysis Demir, Ece; Ozdemir, Ezgi; Yapan, Bilge İrem; Kart, Buse Berfin; Yandımata, Esin; Demir, Yasemin; Gure, Pinar D.; Koksal, Gulser; Alp, Emre (2026-06-21) The multifunctional role of water resources and their interconnections with the broader Water-Energy-Food-Ecosystem (WEFE) nexus necessitate a deeper understanding of complex governance structures involving diverse stakeho...
PET microplastics in mesophilic anaerobic digestion after thermal-enzyme combined disintegration Bahçecioğlu, Elif N.; Sanin, Faika Dilek (2026-06-01) Microplastics (MPs) are increasingly found in wastewater treatment plants and can affect the efficiency of anaerobic digestion (AD), since over 90% are retained in waste activated sludge (WAS). Among these, polyethylene te...
Electrolyte-aware benchmarking of anaerobic digestion–microbial electrolysis cells treating cattle manure Oden, Berkan; Yılmazel, Yasemin Dilşad (2026-05-01)
Multi-dimensional Assessment of the Water-Food Nexus in a Semi-Arid Watershed Özel, Beyza; Demir, Yasemin; Alp, Emre (2026-03-01) The availability of water is crucial for ensuring global food security, particularly in regions most affected by climate change. Understanding the trade-offs and synergies between the availability of water and the food sec...
Advancing circular water transitions in the WEFE nexus with the Ostrom's institutional analysis and development framework Demir, Ece; Alp, Emre (2026-03-01) Fragmented governance can exacerbate stakeholder conflicts and resource inefficiencies, necessitating integrated approaches in water management. The implementation of the Water-Energy-Food-Ecosystem (WEFE) nexus could stre...
From Shelf to Skin: Tracing Microplastic Contamination in Cosmetics and Personal Care Products across Türkiye Bal, Yaren; Tavşanoğlu, Ülkü Nihan; Kankılıç, Gökben Başaran (Springer Science and Business Media LLC, 2026-3) This study investigates microplastic content in 79 personal care and cosmetic products (PCCPs)—shampoos, shower gels, peeling gels, and toothpastes—from various commercial brands in Türkiye, each analyzed through multiple ...
Uncovering Systemic Dynamics through an Integrated WEFE Nexus Index across 21st Century Futures Özcan, Zeynep; Alp, Emre (2026-02-05) Achieving sustainability under accelerating climate and socioeconomic pressures requires moving beyond siloed sectoral management toward a system-thinking approach. The water-energy-food-ecosystem (WEFE) Nexus offers a hol...
WEFE nexus unveiled: a comprehensive review of monitoring and modelling methods in the water-energy-food-ecosystems nexus Vrachioli, Maria; Mellios, Nikos; Alp, Emre; Borchard, Nils; Coutinho Calheiros, Cristina Sousa; Castelli, Giulio; Coletta, Virginia Rosa; Carvalho, Pedro N; Domínguez-Soberanes, Julieta (2025-11-01) Sustainable resource management in the face of climate change is a pressing challenge for our society. This paper delves into the water-energy-food-ecosystems (WEFE) nexus, a scientific framework that supports the integrat...
Hybrid physical-statistical framework for seasonal streamflow forecasting in the Upper Feather River Basin, California Özcan, Zeynep; Iseri, Y.; Ulloa, F.; Imbulana, N.; Snider, E.; Mure-Ravaud, M.; Anderson, M. L.; Kavvas, M. L. (2025-08-01) Seasonal streamflow forecasts are essential given climate-driven extremes that breach stationarity in traditional methods. The complex hydrology and competing demands necessitate improved forecasting in the Upper Feather R...
Bio-Aging of polyethylene during anaerobic and aerobic digestion Dassouki Dit Tahan, Maha; Özdemir, Melek; Sanin, Faika Dilek; İmamoğlu, İpek (2025-07-01) Presence of microplastics (MPs) in wastewater treatment plants (WWTPs) require scrutiny from two perspectives: impact of MPs on treatment and on MPs themselves. Accordingly, this study investigates the impact of high-densi...
Effect of pH and salinity on photofermentative hydrogen and poly-hydroxybutyric acid production via Rhodobacter capsulatus YO3 Hoşafcı, Ertan; Ateş, Candan; Volkan, Aşkın Efe; Koku, Harun; Bayramoğlu, Tuba Hande (2025-05-10) The production of poly-hydroxybutyrate (PHB) and H2 via Rhodobacter capsulatus YO3, an uptake hydrogenase deficient (hup−) mutant, was investigated in this study. The pH and salinity of the bioreactor medium were investiga...
Microplastics from industrial sources: A known but overlooked problem Karakurt, Ozan; Altuntaş, Oğuzhan; Şimşek, İrem; Hatinoğlu, Dilara; Sanin, Faika Dilek (2025-04-01) Current studies suggest that industrial wastewaters can be major sources of microplastics (MPs), but specific studies are rare in regard to specific industries and organized industrial zones (OIZs). This study addresses th...
CO2 Emission Inventory in Türkiye and Estimation of CO2 Concentration over Türkiye by Using Dispersion Modelling Can, Ali; Atımtay, Aysel; Tokdemir , Turgut (Gazi Universitesi Fen Bilimleri Dergisi Part C: Tasarim ve Teknoloji, 2025-3-24) Atmosferin yoğunluğu ve bileşiği Dünya sıcaklığını güçlü bir şekilde etkilemektedir. Sera gazı salınımı atmosfer dengesini değiştirerek ve enerjinin bir kısmını absorbe ederek hapsetmiştir. En önemli sera gazı (CO2)karbond...
A framework for assessing the circular economy potential in the water and agriculture sectors in Türkiye through the water-energy-food-ecosystem nexus Demir, Ece; Alp, Emre (2025-03-01) The growing need for agricultural production and the consequences of climate change necessitate new paradigms for sustainable resource management such as the Water-Energy-Food-Ecosystem (WEFE) nexus and the circular econom...

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