Abstract
In this paper, the effects of salicylic acid (SA) algicide carried by cross-linked chitosan on the inhibition of Microcystis flos-aquae and the removal ability of heavy metals Pb and Ni in compound polluted water were studied. The results showed that the algicide had significant inhibitory effects on Microcystis flos-aquae: when the concentrations were 550 and 700 mg L−1, the inhibition time was up to 13 days or more, and the inhibition rate was as high as 99 %. The algicide exhibited strong adsorption capacity to heavy metals Pb and Ni. The adsorption rates of the algicide at concentrations of 400 and 550 mg L−1 on Ni and Pb were 61 and 64.9 %, 71.2 and 72.5 % at 13 days, respectively. The algicide allows a slow release of SA and long-term inhibition of algae and has better adsorption capacity on heavy metals, thus providing a method for the effective control of eutrophication and combined heavy metal pollution in water.
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This research was supported by the National Natural Science Foundation of China (No. 20777021), Ministry of Education, Key Research Project of Science and Technology (No. 210253), and the Natural Science Foundation of Fujian Province of China (No. 2010J01043, D0610012).
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Guo, P.Y., Liu, Y., Wen, X. et al. Effects of algicide on the growth of Microcystis flos-aquae and adsorption capacity to heavy metals. Int. J. Environ. Sci. Technol. 12, 2339–2348 (2015). https://doi.org/10.1007/s13762-014-0633-9
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DOI: https://doi.org/10.1007/s13762-014-0633-9