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    An environmental risk assessment for a DDX-contaminated agricultural area in Turkey: soil vs. plant or human vs. animal
    (Springer Heidelberg, 2021) Korucu, Mahmut Kemal; Elibol, Pinar Sevim; Isleyen, Mehmet
    This study is the first research attempt to assess the environmental risks of an agricultural area contaminated with the p,p '-DDT and its metabolites (DDX) on human and terrestrial species through exposure to soil and agricultural products, simultaneously. The study was carried out for a DDX-contaminated agricultural area in Turkey. Soil samples obtained in two different harvest applications were analyzed in terms of DDX levels. Similarly, stem, leaf, and fruit samples of an agricultural product grown on the same soils were analyzed. Using the results of these analyses, DDX intake values were calculated for 5 different human receptor groups, 4 different bird species, and 4 different mammal species, and the risk values were calculated by using a stochastic approach based on a Monte Carlo simulation. Findings indicated a substantial level of carcinogenic risk in the human receptor groups. Furthermore, a significant risk of reproductive toxicity was determined for the birds and mammals. The findings prominently showed that these risks can develop not only through exposure to DDX-contaminated soils but also through the consumption of plants grown on these soils.
  • Küçük Resim
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    An environmental risk assessment for a DDX-contaminated agricultural area in Turkey: soil vs. plant or human vs. animal (May, 10.1007/s11356-021-14154-4, 2021)
    (Springer Heidelberg, 2021) Korucu, Mahmut Kemal; Elibol, Pinar Sevim; Isleyen, Mehmet
    [Abstract Not Available]
  • Küçük Resim Yok
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    Lignite-derived graphite synthesis for the removal of nonylphenol ethoxylate
    (Desalination Publ, 2023) Elibol, Pinar Sevim; Erdogan, Hakki
    This research was centred on the synthesis and characterization of lignite-derived graphite (LDG) as an alternative adsorption material for eliminating nonylphenol ethoxylate (NPE) from aqueous solutions. The characterization of LDG revealed distinctive morphological traits, consisting of tubu-lar structures and densely packed layers. These structural attributes augment adsorption capacity when compared to traditional materials by increasing surface area and establishing intricate path-ways that facilitate NPE transport. To achieve this goal, the impacts of variables such as pH, con-tact time, initial concentration, and temperature on NPE removal via LDG were investigated. The study indicated that NPE adsorption onto LDG occurs rapidly, with equilibrium attained within a mere 5 min. Moreover, it was determined that LDG effectively operates across a broad pH range. The acquired data were elucidated using the pseudo-second-order kinetic model, providing the most accurate representation of the adsorption process. Furthermore, the Dubinin-Radushkevich iso-therm analysis indicated the prevalence of a physical mechanism in the NPE adsorption onto LDG. Throughout the study, characterization of the synthesized LDG was carried out through X-ray dif-fraction, scanning electron microscopy, and Brunauer-Emmett-Teller analysis. In conclusion, this study underscores the synergy between LDG's distinctive physical and chemical properties, posi-tioning it as a promising material for efficiently extracting NPE from contaminated water sources.
  • Küçük Resim Yok
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    Treatment of cosmetic industry wastewater with boron doped diamond, platinum and metal oxide electrodes in electrooxidation process
    (Pamukkale Univ, 2024) Can, Orhan Taner; Gundogdu, Hilal; Keyikoglu, Ramazan; Elibol, Pinar Sevim; Aygun, Ahmet; Isleyen, Mehmet
    In this study, treatability of cosmetic wastewater consist high pollution by electrooxidation process was investigated using three different anodes. For this purpose, BDD (Boron Doped Diamond), Pt and RuO2- IrO2 metal -oxide electrodes were used. The total organic carbon (TOC) removal efficiency of each electrode was determined and results were compared. After 120 min of operating time, the TOC removal efficiencies of BDD anode were obtained as 31.6%, 57.8% and 68%; Pt anode were obtained as 25%, 36.5% and 48%; RuO2-IrO2 metal -oxide anode were obtained as 22.6%, 29.8% and 42.6% respectively for 0.5, 1 and 1.5 ampere currents. It is observed that TOC removal efficiency increases with time for all electrodes throughout the operation time. The results showed that BDD electrode provided the best removal efficiency and this efficiency increased by the time of progress. After 120 min of operating time, the best TOC removal efficiencies of BDD, Pt and RuO2-IrO2 metaloxides electrodes were 68%, 48% and 42.6% respectively for 1.5 ampere.