• A New Evaluation Model for Natural Attenuation Capacity of a Vadose Zone Against Petroleum Contaminants

  • Heesoo Woo1·Seongnam An1·Kibeum Kim4·Saerom Park5·Sungjik Oh1,2·Sang Hyun Kim·Jaeshik Chung1,2*·Seunghak Lee1,2,3*

  • 1Water Cycle Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
    2Division of Energy and Environmental Technology, KIST School, Korea University of Science and Technology (UST), Seoul 02792, Republic of Korea
    3Graduate School of Energy and Environment (KU-KIST Green School), Seoul 20841, Korea
    4Cheongwoo Environment Co., LTD., Seoul 05681, Korea
    5Korea Institute of Civil engineering and building Technology, Department of Environmental research, Gyeonggi-do, 10223, Korea

  • 유류 오염물질에 대한 불포화대 자연 저감능 등급화 기법 개발

  • 우희수1·안성남1·김기범4·박새롬5·오성직1,2·김상현1·정재식1,2*·이승학1,2,3*

  • 1한국과학기술연구원(KIST) 물자원순환연구단
    2과학기술연합대학원대학교(UST) 에너지-환경융합전공
    3고려대학교 에너지환경대학원
    4(주)청우환경
    5한국건설기술연구원(KICT) 환경연구본부

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Although various methods have been proposed to assess groundwater vulnerability, most of the models merely consider the mobility of contaminants (i.e., intrinsic vulnerability), and the attenuation capacity of vadose zone is often neglected. This study proposed an evaluation model for the attenuation capacity of vadose zone to supplement the limitations of the existing index method models for assessing groundwater vulnerability. The evaluation equation for quantifying the attenuation capacity was developed from the combined linear regression and weighted scaling methods based on the lab-scale experiments using various vadose zone soils having different physical and biogeochemical properties. The proposed semi-quantifying model is expected to effectively assess the attenuation capacity of vadose zone by identifying the main influencing factors as input parameters together with proper weights derived from the coefficients of the regression results. The subsequent scoring and grading system has great versatility while securing the objectivity by effectively incorporating the experimental results.


Keywords: Attenuation capacity, Groundwater vulnerability assessment, Index method, Multiple linear regression analysis, Vadose zone

This Article

  • 2022; 27(S1): 92-98

    Published on Jul 31, 2022

  • 10.7857/JSGE.2022.27.S.092
  • Received on Jun 23, 2022
  • Revised on Jun 27, 2022
  • Accepted on Jul 19, 2022

Correspondence to

  • Jaeshik Chung1,2·Seunghak Lee1,2,3

  • 1Water Cycle Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
    2Division of Energy and Environmental Technology, KIST School, Korea University of Science and Technology (UST), Seoul 02792, Republic of Korea
    3Graduate School of Energy and Environment (KU-KIST Green School), Seoul 20841, Korea

  • E-mail: jschung@kist.re.kr ,seunglee@kist.re.kr