Abstract
A series of gramine modified montmorillonites (gramine-MMTs) were prepared and characterized by thermogravimetric analysis, X-ray diffraction and zeta potential measurements. These modified clays with various amounts of gramine all exhibited higher removal efficiencies of both Chattonella marina and Alexandrium tamarense than did natural clay. With the augmentation of gramine content in the modified clays, the removal efficiency increased. The 24 h LC50 values of gramine-MMT with 12.68 % of gramine on C. marina and A. tamarense were 9.16 and 10.21 mg L−1, respectively. These data suggest gramine-MMT might be a promising material to remediate harmful algal blooms.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (41176088), the Technical Extension Special Project of Guangdong Marine Fisheries Service (A201201K01), the Science and Technology Projects of Guangdong Province (2009B030803042) and Guangzhou Environmental Protection Project (2008-07).
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Liu, Sl., Wang, Ww., Liu, F. et al. Removal of Two Species of Harmful Algae Using Gramine Modified Montmorillonite. Bull Environ Contam Toxicol 96, 540–543 (2016). https://doi.org/10.1007/s00128-016-1758-y
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DOI: https://doi.org/10.1007/s00128-016-1758-y