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논문 기본 정보

자료유형
학술저널
저자정보
김권래 (고려대학교) Ravi Naidu (University of South Australia) 김정규 (고려대학교)
저널정보
한국토양비료학회 한국토양비료학회지 한국토양비료학회지 제43권 제5호
발행연도
2010.10
수록면
436 - 442 (7page)

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Cleaning up the landfill soil by phytoremediation in association with biomass production and utilization of biosolid as a soil amendment will be an attractive green technology. In order to examine this integrated green technology, in the current study of pot trial, heavy metal removal rate and biomass production were determined following cultivation of three different plant species in the landfill soil incorporated with biosolid at two different levels (25 ton ha<SUP>-1</SUP> and 50 ton ha<SUP>-1</SUP>). Among the three plant species including Indian mustard (Brassica juncea), giant sunflower (Helianthus giganteus. L), and giant cane (Arundo donax. L), sunflower appeared to produce the largest biomass yield (19.2 ton ha<SUP>-1</SUP>) and the produced amounts were magnificently increased with biosolid treatment compared to the control (no biosoild treatment). The increased production associated with biosolid treatment was common for other plant species and this was attributed to the biosolid originated nutrients as well as the improved soil physical properties due to the organic matter from biosolid. The elevated heavy metals in soil which was originated from the incorporated biosolid were Cu and Zn. Based on the phytoavailable amount of heavy metals from biosolid, the removed amount by plant shoots were 95% and 165% for Cu and Zn, respectively, when sunflower was grown. This indicated that mitigation of heavy metal accumulation in soils achieved by the removal of metal through sunflower cultivation enables the successive treatment of biosolid to soils. Moreover, sunflower showed heavy metal stabilization ability in the rhizosphere resulting in alleviation of metal release to ground water.

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UCI(KEPA) : I410-ECN-0101-2014-521-000674374