We applied column experiments to investigate the environmental fate and transport of silver nanoparticles(AgNPs) in fully saturated conditions of porous media. These column experiments were performed to emphasize oxidation method with H2O2 concentration and acidic conditions. The mobility of AgNPs was decreased with the increasing ionic strength that the surface charge of AgNPs(zeta potential) was neutralized with the presence of positive ions of Na+. Additionally, it was also affected due to that not only more increased aggregated size of AgNPs and surface charge of quartz sand. The decreased breakthrough curves(BTCs) of bisphenol-A(BPA) and 17α-ethynylestradiol(EE2) were removed approximately 35.3 and 40%. This is due to that endocrine disrupting chemicals(EDCs) were removed with the release of OH․ radicals by the fenton-like mechanisms from acidic and fenton-like reagent presenting. This results considered that higher input AgNPs with acidic conditions is proved to realistic in-situ oxidation method. Overall, it should be emphasized that a set of column experiments employed with adjusting pH and H2O2 concentration in proved to be effective method having potential ability of in-situ degradation for removing organic contaminants such as BPA and EE2.

ABSTRACT
 1. 서 론
 2. 실험 재료 및 방법
  2.1 실험 재료
  2.2 Column 실험 방법
  2.3 분석 방법
 3. 실험결과
  3.1 이온 강도 변화 및 유기물질 출연에 따른 AgNPs과 BPA의 거동 영향 분석
  3.2 이온 강도 변화 및 유기물질 출연에 따른 AgNPs과 EE2의 거동 영향 분석
  3.3 조건에 따른 컬럼 내 AgNPs 의 침적 경향
 4. 결 론
 References

• 김예진(육군3사관학교 군환경연구센터) | Yejin Kim (Korea Army Academy at Yeongcheon)
• 허지용(육군3사관학교 군환경연구센터) | Jiyong Heo (Korea Army Academy at Yeongcheon) Corresponding author