Photodegradation of Organic Materials Used as Biocides.
NAVAL RESEARCH LAB WASHINGTON D C
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In an effort to evaluate the possible environmental impact of discharging biocide-containing ballast or displacement water from shipboard fuel tanks, a study has been made of the effects of sunlight on the toxicity of three organic biocides to algae. A thiopyridine and a thiocyanate compound in solution in seawater lost most of their toxicity in less than 24 hours exposure to sunlight a triazine compound was relatively unaffected. The results suggest that it may be possible to select a biocide which is active indefinitely against the microorganisms which infest ships fuel tanks but becomes degraded so rapidly when discharged that no serious impact of the marine environment would result. Author
- Water Pollution and Control