Removal of Cyanobacteria and Microcystin by Natural Plant-Mineral Combinations in Eutrophic Waters
- Authors
- Kim, Baik-Ho; Lee, Ju-Hwan; Hwang, Soon-Jin
- Issue Date
- Feb-2013
- Publisher
- SPRINGER
- Keywords
- Plant-mineral combination; PMC; Cyanobacterial cell; Microcystin-LR removal
- Citation
- BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, v.90, no.2, pp.216 - 221
- Indexed
- SCIE
SCOPUS
- Journal Title
- BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
- Volume
- 90
- Number
- 2
- Start Page
- 216
- End Page
- 221
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163485
- DOI
- 10.1007/s00128-012-0904-4
- ISSN
- 0007-4861
- 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.
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