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EDCs/PhACs의 단일,복합 조건에서의 GAC에 대한 흡착 연구 KCI 등재

Adsorption of selected endocrine disrupting compounds (EDCs)/pharmaceutical active compounds (PhACs) onto granular activated carbon (GAC) : effect of single and multiple solutes

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상하수도학회지 (Journal of the Korean Society of Water and Wastewater)
대한상하수도학회 (Korean Society Of Water And Wastewater)
초록

The widespread occurrence of dissolved endocrine disrupting compounds(EDCs) and pharmaceutical active compounds(PhACs) in water sources is of concern due to their adverse effects. To remove these chemicals, adsorption of EDCs/PhACs on granular activated carbon(GAC) was investigated, and bisphenol A, carbamazepine, diclofenac, ibuprofen, and sulfamethoxazole were selected as commonly occurring EDCs/PhACs in the aquatic environment. Various adsorption isotherms were applied to evaluate compatability with each adsorption in the condition of single-solute. Removal difference between individual and competitive adsorption were investigated from the physicochemical properties of each adsorbate. Hydrophobicity interaction was the main adsorption mechanism in the single-solute adsorption with order of maximum adsorption capacity as bisphenol A ≻ carbamazepine ≻ sulfamethoxazole ≻ diclofenac ≻ ibuprofen, while both hydrophobicity and molecular size play significant roles in competitive adsorption. Adsorption kinetic was also controled by hydrophobicity of each adsorbate resulting in higher hydrophobicity allowed faster adsorption on available adsorption site on GAC. EDCs/PhACs adsorption on GAC was determined as an endothermic reaction resulting in better adsorption at higher temperature (40 ◦C) than lower temperature (10 ◦C#x25E6;C).

저자
  • 오재일(중앙대학교 사회기반시스템공학부) | Jeill Oh Corresponding author
  • 윤여민(Univ of South Carolina Department of Civil and Environmental Engineering) | Yeomin Yoon
  • 손주영(중앙대학교 사회기반시스템공학부) | Jooyoung Son
  • 정찬일(Univ of South Carolina Department of Civil and Environmental Engineering) | Chanil Jung