Browsing by Author "Dinc, S."

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Citation - WoS: 10
Citation - Scopus: 10
Fate and Removal of Pesticides in Solid and Liquid Phases of Metropolitan, Urban and Rural-Scale Wastewater Treatment Plants
(Elsevier, 2023) Nas, Bilgehan; Yel, Esra; Argun, M. E.; Dinc, S.; Kara, M.; Koyuncu, S.; Dolu, Taylan
In this study, the change of occurrence, distribution, seasonal variation and removal of pesticides, atrazine (ATZ), chlorpyriphos (CPR) and chlorfenvinphos (CFV), were investigated both in liquid and solid phases of three different types of wastewater treatment plants (WWTPs). Treatment configurations of the studied WWTPs consist of a metropolitan advanced biological treatment system (4-stage Bardenpho), urban-scale waste stabilization pond (WSP) and rural-scale horizontal subsurface flow constructed wetland (HSSCW). ATZ removal efficiencies (59.8 %-92.4 %) were higher than CPR and CFV removal efficiencies at all WWTPs. CPR and CFV are removed at 78.5 % and 53.1 % efficiency, respectively, from the influent of advanced biological treatment system. CPR and CFV removals were 21.6 and 22.7 % at WSP, respectively. One of the important findings is that ATZ and CFV were removed at higher percentages in primary treatment than in biological treatment in advanced biological WWTP. Sorption onto sludge has been evaluated as an effective removal mechanism for pesticide elimination, at least as much as biodegradation/biotransformation. All investigated pesticides were detected in higher concentrations in primary sludge (168.8-399.5 mu g/kg) compared to secondary sludge (21.9-146.3 mu g/kg) in advanced biological WWTP and in facultative sludge (447.8-1044.7 mu g/kg) compared to anaerobic sludge (250.0-613.0 mu g/kg) in WSP. It was determined that ATZ was the most treated compound in the liquid phase under anaerobic conditions among the studied pesticides. In line with these results, approximately 45 % removal efficiency was determined for CPR and CFV in the anaerobic digestion process present in advanced biological WWTP.
Role of Metal Nanoparticles for Treatment of and Prevention of Viral Infections
(Elsevier, 2023) Yavuz, E.; Dursun, S.; Kara, M.; Dinc, S.
Recently, viral infections have become the world’s biggest dilemma once again due to novel coronavirus disease 2019, which quickly turned into a global pandemic as declared by the World Health Organization on March 11, 2020, and has been affecting human life at great expenses since then. To fight with the emerging new enemy which is in nanosize, biomimetic nanotechnological approaches are quickly revisited to develop effective antiviral nanotherapeutics with reduced systemic toxicity and more precise targeting. Since multifunctional metal nanoparticles are one of the most important key players of the nanoworld, their synthesis methods and applications in antiviral therapeutic agents and nanovaccines against different viruses, that is, human immunodeficiency virus, hepatitis viruses, influenza A virus, herpes simplex virus, and severe acute respiratory syndrome coronavirus 2, are discussed in this chapter. © 2023 Elsevier Inc. All rights reserved.