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오염토양 정화공법이 토양의 생물학적 특성에 미치는 영향

Effects of Soil Remediation Methods on the Biological Properties of Soils

  • Yi, Yongmin (Department of Ecological Engineering, Pukyong National University) ;
  • Kim, Gukjin (OIKOS Co. Ltd.) ;
  • Sung, Kijune (Department of Ecological Engineering, Pukyong National University)
  • 투고 : 2013.03.29
  • 심사 : 2013.06.22
  • 발행 : 2013.06.30

초록

Various remediation methods have been applied to clean soils contaminated with pollutants. They remove contaminants from the soils by utilizing physicochemical, biological, and thermal processes and can satisfy soil remediation standards within a limited time; however, they also have an effect on the biological functions of soils by changing soil properties. In this study, changes of the biological properties of soils before and after treatment with three frequently used remediation methods-soil washing, land farming, and thermal desorption-were monitored to investigate the effects of remediation methods on soil biological functions. Total microbial number and soil enzyme activities, germination rate and growth of Brassica juncea, biomass change of Eisenia andrei were examined the effects on soil microorganisms, plant, and soil organisms, respectively. After soil washing, the germination rate of Brassica juncea increased but the above-ground growth and total microbial number decreased. Dehydrogenase activity, germination rate and above-ground growth increased in both land farming and thermal desorption treated soil. Although the growth of Eisenia andrei in thermal desorption treated soil was higher than any other treatment, it was still lower than that in non-contaminated soil. These results show that the remediation processes used to clean contaminated soil also affect soil biological functions. To utilize the cleaned soil for healthy and more value-added purposes, soil improvement and process development are needed.

키워드

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피인용 문헌

  1. Applicability of Soil Washing with Neutral Phosphate for Remediation of Arsenic-contaminated Soil at the Former Janghang Smelter Site vol.19, pp.4, 2014, https://doi.org/10.7857/JSGE.2014.19.4.045
  2. Effect of different soil washing solutions on bioavailability of residual arsenic in soils and soil properties vol.138, 2015, https://doi.org/10.1016/j.chemosphere.2015.06.004
  3. Overview: Microbial amendment of remediated soils for effective recycling vol.138, pp.2261-236X, 2017, https://doi.org/10.1051/matecconf/201713804001
  4. Analysis of Mineralogical Toxicity of Soils Contaminated with Arsenic and Lead vol.52, pp.1, 2018, https://doi.org/10.14397/jals.2018.52.1.103