지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.12
- 수록면
- 443 - 450 (8page)
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초록· 키워드
오류제보하기
To determine Pb species in soils following the immobilization process, sequential extraction has been used despite the possibility of overestimating Pb species from unintended reactions during chemical extraction. Meanwhile, the application of extended X-ray absorption fine structure (EXAFS) has been shown to provide a more precise result than chemical extraction. In this study, the immobilization of Pb in contaminated soils treated with liming materials such as oyster shell (OS) or eggshell (ES) was evaluated with thermodynamic modelling and EXAFS analysis. Thermodynamic modelling by visual MINTEQ predicted the precipitation of Pb(OH)₂ in OS and ES treated soils. In particular, the values of saturation index (SI) for Pb(OH)₂ in OS (SI=0.286) and ES (SI=0.453) treated soils were greater than in the control soil (SI=0.281). Linear combination fitting (LCF) analysis confirmed the presence of C<SUB>12</SUB>H<SUB>10</SUB>O<SUB>14</SUB>Pb<SUB>3 </SUB>(lead citrate, 44.7%) by citric acid from plant root, Pb-gibbsite (Pb adsorbed gibbsite, 26.4%), and Pb-kaolinite (Pb adsorbed kaolinite, 20.3%) in the control soil. On the other hand, Pb(OH)₂ (16.8%), Pb-gibbsite (39.3%), and Pb-kaolinite (25.6%) were observed in the OS treated soil and Pb(OH)₂ (55.2%) and Pb-gibbsite (33.8%) were also confirmed in the ES treated soil. Our results indicate that the treatment with OS and ES immobilizes Pb by adsorption of Pb onto the soil minerals as a result of the increase in soil negative charge and the formation of stable Pb(OH)₂ under high pH condition of soils.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (47)
참고문헌 신청
1. [단행본] - Adriano, D.C. / 2001 / Trace elements in terrestrial environments, second edition / Springer-Verlag
2. [학술지(정기간행물)] - Ahmad, M. / 2012 / Immobilization of lead in a Korean military shooting range soil using eggshell waste: an integrated mechanistic approach / J. Hazard. Mater 209-210 : 392 ~ 401
3. [학술지(정기간행물)] - Ahmad, M. / 2014 / Speciation and phytoavailability of lead and antimony in a small arms range soil amended with mussel shell, cow bone and biochar: EXAFS spectroscopy and chemical extraction / Chemosphere 95 : 433 ~ 441
4. [학술지(정기간행물)] - Ahmad, M. / 2012 / Effects of soil dilution and amendments (mussel shell, cow bone, and biochar) on Pb availability and phytotoxicity in military shooting range soil / Ecotox. Environ. Safe 79 : 225 ~ 231
5. [학술지(정기간행물)] - Ahmad, M. / 2012 / An assessment of the utilization of waste resources for the immobilization of Pb and Cu in the soil from a Korean military shooting range / Environ. Earth Sci 67 : 1023 ~ 1031
2. [학술지(정기간행물)] - Ahmad, M. / 2012 / Immobilization of lead in a Korean military shooting range soil using eggshell waste: an integrated mechanistic approach / J. Hazard. Mater 209-210 : 392 ~ 401
3. [학술지(정기간행물)] - Ahmad, M. / 2014 / Speciation and phytoavailability of lead and antimony in a small arms range soil amended with mussel shell, cow bone and biochar: EXAFS spectroscopy and chemical extraction / Chemosphere 95 : 433 ~ 441
4. [학술지(정기간행물)] - Ahmad, M. / 2012 / Effects of soil dilution and amendments (mussel shell, cow bone, and biochar) on Pb availability and phytotoxicity in military shooting range soil / Ecotox. Environ. Safe 79 : 225 ~ 231
5. [학술지(정기간행물)] - Ahmad, M. / 2012 / An assessment of the utilization of waste resources for the immobilization of Pb and Cu in the soil from a Korean military shooting range / Environ. Earth Sci 67 : 1023 ~ 1031
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UCI(KEPA) : I410-ECN-0101-2016-521-000952128