Degradation of Bisphenol A in Natural and Artificial Marine and Freshwaters in Turkey

Date

2019-09-01

Author

Kocaman, Emel
Özhan, Koray

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

222
views

0
downloads

Bisphenol A (BPA), one of the important synthetic chemicals, has been produced at high volumes since the 1960s. These chemicals are commonly detected in the marine and freshwater environments; however, their transformation in aquatic environments depends on many parameters. This study aims to investigate the degradation of BPA in marine and freshwaters under different conditions in terms of microbial degradation, photodegradation, and temperature effect. The results showed that BPA content in samples prepared from the artificial waters did not change significantly in 150 days. BPA concentrations in natural river water started to degrade after day 50, and the degradation rate was faster for the samples at 25 degrees C than ones at 4 degrees C. In natural seawater samples, there was no degradation detected in 150 days at 4 degrees C and 25 degrees C. However, samples prepared in natural seawater, kept outside, and exposed to over 40 degrees C temperature showed degradation after day 50. A treatment exposed to the sunlight showed a higher degradation rate, indicating the additive/synergistic role of the photodegradation. Our study suggests that high temperatures ( > 25 degrees C) are required for BPA degradation in seawater. River water is more potent than seawater for BPA degradation. It is suggested that BPA contamination in a marine environment could be more persistent than in a freshwater environment.

Subject Keywords

Bisphenol A, Degradation , The Mediterranean Sea , Half-Life

URI

https://hdl.handle.net/11511/32618

Journal

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY

DOI

https://doi.org/10.1007/s00128-019-02680-4

Collections

Graduate School of Marine Sciences, Article

Suggestions

OpenMETU
Core

Recycling of Polymer Waste Using Different Techniques Sivri, Seda; Sezgi, Naime Aslı; Dilek Hacıhabiboğlu, Çerağ; Department of Chemical Engineering (2023-1-26) Polylactic acid (PLA) is the most widely known renewable biodegradable polymer due to its mass production, good processability, optical, mechanical, thermal, and barrier properties. Hence, the production rate of PLA increased gradually during the last decade. However, PLA is known to have slow degradation rate in soil and marine environments, leading to significant waste accumulation with widespread usage of the polymer. Thus, recycling of PLA waste will become a significant environmental concern in near fu...
Optimization of microwave-assisted extraction of phenolic compounds from tomato: Characterization by FTIR and HPLC and comparison with conventional solvent extraction Baltacıoğlu, Hande; Baltacıoğlu, Cem; Okur, İlhami; Tanrıvermiş, Arif; Yalıç, Muharrem (Elsevier BV, 2021-03-01) © 2021 Elsevier B.V.In the extraction of phenolic compounds from tomato, Microwave-Assisted Extraction (MAE) was used as a novel technology in this study and compared to conventional solvent extraction (CSE). The optimal extraction conditions for tomato were determined using the multi-level factorial design. For this purpose, different powers (360, 600 and 900 W) and times (30, 60 and 90 s) were used for MAE and also different temperatures (40, 50 and 60 °C) and times (10, 20 and 30 min) were used for CSE. ...
Synthesis and characterization of multi-hollow opaque polymer pigments Asmaoglu, Serdar; Gündüz, Güngör; MAVİŞ, BORA; Colak, Uner (Wiley, 2016-08-05) A new generation multihollow opaque polymer pigment was synthesized by suspension polymerization of water-in-oil-in-water emulsion method, where methyl methacrylate and ethylene glycol dimethacrylate monomer mixture was used as oil phase. The effects of surfactant and cosurfactant composition in terms of hydrophilic/lipophilic balance on the stability of the water-in-oil emulsion and the size of water droplets were studied. Low droplet sizes and the optimum stability were obtained with Span 80&Tween 80 surf...
Nanoclay and carbon nanotubes as potential synergists of an organophosphorus flame-retardant in poly(methyl methacrylate) Isitman, Nihat Ali; Kaynak, Cevdet (2010-09-01) This study explores whether nanoparticles incorporated in polymers always act as synergists of conventional flame-retardant additives. For this purpose, two different filler nanoparticles, namely organically modified layered-silicate clay minerals or nanoclays and multi-walled carbon nanotubes, were incorporated in poly(methyl methacrylate) filled with an organophosphorus flame-retardant that acts through intumescence. Effective dispersion techniques specific to each nanoparticle were utilized and prepared ...
Diesel Oil Degradation Potential of a Bacterium Inhabiting Petroleum Hydrocarbon Contaminated Surface Waters and Characterization of Its Emulsification Ability Onur, Gozde; Yılmaz, Fadime; İçgen, Bülent (Wiley, 2015-07-01) Degradation of poorly water soluble hydrocarbons, like n-alkanes and polycyclic aromatic hydrocarbons are challenged by some bacteria through emulsification of hydrocarbons by producing biosurfactants. In diesel oil bioremediation, diesel oil degrading and surfactant producing bacteria are used to eliminate these pollutants from contaminated waters. Therefore, identifying and characterizing bacteria capable of producing surfactant and degrading diesel oil are pivotal. In this study, bacteria isolated from h...

Citation Formats

E. Kocaman and K. Özhan, “Degradation of Bisphenol A in Natural and Artificial Marine and Freshwaters in Turkey,” BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, pp. 496–500, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32618.