Removal of Cyanobacteria and Microcystin by Natural Plant-Mineral Combinations in Eutrophic Waters

Title
Removal of Cyanobacteria and Microcystin by Natural Plant-Mineral Combinations in Eutrophic Waters
Author
김백호
Keywords
Plant-mineral combination; PMC; Cyanobacterial cell; Microcystin-LR removal
Issue Date
2013-02
Publisher
Springer Science + Business Media
Citation
Bulletin of environmental contamination and toxicology. 90, 2, 216 - 221
Abstract
The removal or mitigation of cyanobacterial bloom and cyanotoxins is a necessity to ensure safe drinking water and recreational water. As a feasible agent to control cyanobacterial bloom, a novel plant-mineral composite (PMC) was developed and optimized through laboratory and field testing over the past 3 years. Based on previous studies, we treated cyanobacterial bloom water (mainly Microcystis and Synechocystis) with 0.05 mg/L PMC at the small eutrophic reservoir; 2 h later, we collected samples and analyzed them in the laboratory. The intra-cellular (c-MC) and dissolved microcystin-LR (d-MC) were measured using an ELISA method. The PMC exhibited a remarkable removal of both c-MC (47.3 %) and d-MC (95.8 %) within 2 days. In addition, notable decreases (on average, 78 % of the control) in the chlorophyll-a, suspended solids, total phosphorus and biochemical oxygen demand values, in zooplankton and in the phytoplankton density (83.9 %) were verified after 48 h. These results indicate that the PMC is more effective in controlling d-MC than c-MC, suggesting a possible method to mitigate such hazardous chemicals as agrochemicals and endocrine disrupters in aquatic ecosystems.
URI
https://link.springer.com/article/10.1007%2Fs00128-012-0904-4http://hdl.handle.net/20.500.11754/44848
ISSN
0007-4861
DOI
10.1007/s00128-012-0904-4
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > LIFE SCIENCE(생명과학과) > Articles
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