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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 9 - 18 (10page)
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초록· 키워드
오류제보하기
Blocking the influx of nutrients from contaminated sediment and reducing terrigenous loads are essential to controleutrophication in coastal water areas. In this study, the use of an oyster-shell-based ORC (oxygen-releasing compound) wasinvestigated with respect to nutrients such as nitrogen, phosphorous, and sulfur compounds in the sediment environment. The ORC, which was produced by pyrolyzing oyster shell powder, was found to be overoxidized and consisted of calciumperoxide. A series of experiments simulating a typical overlying water-sediment system were carried out in open-lidcylindrical columns over the fifteen-day experimental period. The elution and distribution of crucial contaminating specieswithin that system are discussed. T-N, NH4+-N, T-P, and Pi propagated with time toward the overlying water from thesediment through diffusive migration, showing a constrained increase over distance at the sediment-water interface. Thenitrate levels decreased with time, possibly due to local denitrification. Partial oxidation in a homogenized mixture ofsediment and oxidized oyster shell powder resulted in an increased DO level within the experimental time frame, whichin turn caused T-N, NH4+-N, T-P, and Pi to propagate at a lower rate than sediment without any ORC. Analyses for sulfatesand sulfides in the sediment mixed with ORC confirmed that the chemical environment changed into a more oxidized statein fifteen days. Diffusive migration, along with chemical reactions and/or adsorption, successfully explained the propagationand distribution of the concerned nutrient species resulting from the use of oyster shell powders.
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참고문헌 (28)
참고문헌 신청
Carpenter, S. R. / 1998 / Nonpoint pollution of surface waters with phosphorus and nitrogen / Ecological Applications 8(3):559~568
Nakamoto, K. / 2015 / Granulated coal ash – used method for remediation of organic matter enriched coastal sediments / Procedia Engineering 116:559~568
Bashkin, V. N. / 2002 / Nitrogen budgets for the Republic of Korea and the Yellow Sea region / Biogeochemistry 57:387~403
Lim, H. -S. / 2006 / Hypoxia and benthic community recovery in Korean coastal waters / Marine Pollution Bulletin 52:1517~1526
Muyzer, G. / 2008 / The ecology and biotechnology of sulphate-reducing bacteria / Nature Review Microbiology 6(6):441~454
Nakamoto, K. / 2015 / Granulated coal ash – used method for remediation of organic matter enriched coastal sediments / Procedia Engineering 116:559~568
Bashkin, V. N. / 2002 / Nitrogen budgets for the Republic of Korea and the Yellow Sea region / Biogeochemistry 57:387~403
Lim, H. -S. / 2006 / Hypoxia and benthic community recovery in Korean coastal waters / Marine Pollution Bulletin 52:1517~1526
Muyzer, G. / 2008 / The ecology and biotechnology of sulphate-reducing bacteria / Nature Review Microbiology 6(6):441~454
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