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J Korean Soc Environ Eng > Volume 37(3); 2015 > Article
J Korean Soc Environ Eng 2015;37(3): 182-190. doi: https://doi.org/10.4491/KSEE.2015.37.3.182
하수처리수를 이용한 대수층 함양관리 기술(Managed Aquifer Recharge)에서 유기물과 의약화합물 제거
임훈철1, 여인설1, 맹승규2, 최희철1
1광주과학기술원 환경공학부
2세종대학교 건설환경공학과
Removal of Organic Matter and Pharmaceuticals in Wastewater Effluent through Managed Aquifer Recharge
Huncheol Im1, Inseol Yeo1, Sung-Kyu Maeng2, Heechul Choi1
1School of Environmental Science and Engineering, Gwangju Institute of Science and Technology
2School of Civil and Environmental Engineering, Sejong University
Corresponding author  Heechul Choi ,Tel: 062-715-2441, Fax: 062-715-2434, Email: hcchoi@gist.ac.kr
Received: February 12, 2015;  Revised: March 12, 2015;  Accepted: March 31, 2015.  Published online: March 31, 2015.
ABSTRACT
This study was conducted to evaluate the removal efficiencies of organic matter and pharmaceuticals and to identify the removal mechanism of pharmaceuticals using sand obtained from Hwangryong River in Jangsung. Batch and column studies were used to simulate managed aquifer recharge (MAR) systems. All experiments were performed using field effluent containing pharmaceuticals from Damyang Wastewater Treatment Plant as an influent. Based on the removal results of organic matter and pharmaceuticals from the batch and column experiments, soil organic matter (SOM) and microbial activity were found to effectively remove target contaminants. The removal of organic matter was found to increase under biotic conditions. Neutral and cation pharmaceuticals (iopromide, estrone, and trimethoprim) exhibited removal efficiencies higher than 70% from natural sand and baked sand media in batch and column studies. Carbamazepine persisted in the sand batch and column studies. Anion pharmaceuticals (ketoprofen, ibuprofen, and diclofenac) can be removed under conditions featuring high SOM and adenosine triphosphate (ATP) concentrations in the sand surface. Based on the experimental Batch and column results, biodegradation and sorption were found to be important mechanisms for the removal of pharmaceuticals within the simulated MAR systems.
Key Words: Managed Aquifer Recharge, Riverbank Filtration, Pharmaceuticals, Organic Matter, Batch Experiment, Column Experiment
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