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Bull Environ Contam Toxicol. 2016 Apr;96(4):540-3. doi: 10.1007/s00128-016-1758-y. Epub 2016 Feb 27.

Removal of Two Species of Harmful Algae Using Gramine Modified Montmorillonite.

Author information

1
Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China.
2
Department of Food and Bioengineering, Guangdong Industry Polytechnic, Guangzhou, 510300, China.
3
Key Laboratory of Aquatic Eutrophication and Control of Harmful Algal Blooms of Guangdong Higher Education Institute, College of Life Science and Technology, Jinan University, Guangzhou, 510632, China. tywd@jnu.edu.cn.

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.

KEYWORDS:

Alexandrium tamarense; Chattonella marina; Clay

PMID:
26920698
DOI:
10.1007/s00128-016-1758-y
[Indexed for MEDLINE]

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