期刊
DESALINATION
卷 245, 期 1-3, 页码 135-145出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.desal.2008.06.015
关键词
Domoic acid; Fenton-like reactions; Photo-Fenton; Algal toxins; red tides; cobalt/PMS; Peroxymonosulfate; Ultraviolet; UV
资金
- US National Science Foundation [NSF-2004-C01-2]
Domoic acid ([2S-[2 alpha,3 beta,4 beta(1Z,3E,5S*)]]-2-carboxy-4-(5-carboxy-1-methyl-1,3-hexadienyl)-3-pyrrolidineacetic acid, DA), a harmful algal toxin produced by several microorganisms genus involved in red tides, was tested for degradation in de-ionized and synthetic sea water using Fenton and Fenton-like advanced oxidation processes (AOPs). Four different AOPs-Fenton, photo-Fenton, cobalt/peroxymonosulfate and cobalt/peroxymonosulfate/UV-were tested. Cobalt/PMS/UV demonstrated the highest initial reaction rate when compared with the other oxidation processes tested. Results obtained from tests performed in synthetic sea water were similar for the case of Co/PMS/UV process whereas important decrease in degradation reaction rate was observed for photo-Fenton reaction probably due to the formation of chlorine-Fe(2+) or sulfate-Fe(2+) complexes.
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