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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
- 2022.12
- 수록면
- 12 - 20 (9page)
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Constructed wetlands (CWs) have been successfully employed to treat domestic sewage, while it is reported that inconsistent and low nutrient removal efficiency has been achieved. Due to the good performance in other treatment systems, magnetic Fe₃O₄ nanoparticles (Fe₃O₄ NPs) can provide a new pathway for the nutrient removal in CWs. In this study, the influences of Fe₃O₄ NPs on the nutrient removal and variation of microbial community were investigated. The CWs with Fe₃O₄ had better NH₄<SUP>+</SUP>-N (ammonia nitrogen, 95.9%), NO₃<SUP>-</SUP>-N (nitrate nitrogen, 83.8%), and TP (total phosphorus, 90.4%) removal percentages than that without Fe₃O₄. High-throughput sequencing analysis indicated that the microbial community structure could be changed by Fe₃O₄ NPs. For example, at class level, the major bacteria such as Betaproteobacteria, Gammaproteobacteria and Deltaproteobacteria were promoted by Fe₃O₄ NPs. On the other hand, at genus level, some abundant genera disappeared, while other abundant genera became dominant in CWs with Fe₃O₄ NPs, including Desulfuromonas (3.0%), Azospirillum (1.9%), Chryseolinea (1.5%), and Desulfomicrobium (1.8%). The latter genera essentially improved the microbial community involved in the nitrogen removal. Therefore, the CWs with Fe₃O₄ NPs showed higher NH₄<SUP>+</SUP>-N and NO₃<SUP>-</SUP>-N removal percentages than that without Fe₃O₄ NPs.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
Reference
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UCI(KEPA) : I410-ECN-0101-2022-539-000210744