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다양한 환경에서의 효율적 녹조 저감을 위한 Naphthquinone 물질의 담체화 기술 개발 및 이에 따 른 생태계 변화 모니터링

Title
다양한 환경에서의 효율적 녹조 저감을 위한 Naphthquinone 물질의 담체화 기술 개발 및 이에 따 른 생태계 변화 모니터링
Other Titles
Development of Immobilized Naphthoquinone for Effective Algicidal Activity under Various Environmental Conditions and It’s Ecological Changing Monitoring
Author
한명수
Keywords
Stephanodiscus; naphthoquinone; immobilization; polylactide; agar
Issue Date
2016-12
Publisher
한국환경생태학회
Citation
한국환경생태학회지, v. 34, NO 4, Page. 281-291
Abstract
Abstract - Bloom of small centric diatom Stephanodiscus is quite occasional in winter season in temperate freshwater ecosystems. It often leads to degradation of water quality and affects the quality of supplied drinking water. In a previous study, we have found that naphthoquinone (NQ) 4-6 derivate is an effective tool for efficient mitigation of natural S. hantzschii blooms. In the present research, polylactide (PLA) and agar foam were used as immobilized agent for NQ 4-6 to improve the efficiency of NQ 4-6 compound releasing process for its application under various field conditions. Mesocosm experiments at 10 ton scale suggested that the abundance of S. hantzschii was continuously increased in the control and upon treatment of the mesocosm with immobilized NQ 4-6 from PLA and agar foam. Their algicidal activities were 78.8% and 77.1%, respectively, on S. hantzschii after 10 days. In the mesocosm experiments, the dynamics of biotic (bacteria, HNFs, ciliates, zooplankton) and abiotic (water temperature, dissolved oxygen, pH, conductivity, nutrients) factors remained unaffected. They exhibited similar trends in the control and treatment groups. Therefore, the immobilized NQ 4-6 from PLA and agar foam has potential to be used as an alternative algicidal substance to effectively mitigate natural S. hantzschii blooms under various field conditions. In addition, it not only can be used to control S. hantzschii, but also is an effective technique. The immobilized NQ 4-6 showed stable controlled release in desired system.
URI
http://www.ebr.or.kr/journal/article.php?code=50150https://repository.hanyang.ac.kr/handle/20.500.11754/101651
ISSN
1226-9999; 2287-7851
DOI
10.11626/KJEB.2016.34.4.281
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > LIFE SCIENCE(생명과학과) > Articles
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