Submicron capsules extracted from rapeseed as novel flocculant agents for the treatment of turbid water

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• 作者：B. Tassinari ; S. Doherty ; I.W. Marison
• 关键词：Water treatment ; Oil-bodies ; Submicron capsules ; Coagulation and flocculation ; Rapeseed
• 刊名：Water Research
• 出版年：2013
• 出版时间：15 September, 2013
• 年：2013
• 卷：47
• 期：14
• 页码：4957-4965
• 全文大小：826 K

文摘

Flocculation?is an important step in water treatment as it is responsible for the separation of suspended solids and colloids. The currently used flocculants have certain limitations with respect to environmental impact and disposal as well as potentially being harmful to human health, which has encouraged the study of natural flocculants originating from oleaginous plants. Oil-bodies are individual small organelles in which oleaginous seeds store triacylglycerols reserves. In this article, the flocculant properties of oil-bodies have been investigated. Oil-bodies flocculate at pH 5, 7 and 9 and high ionic strength (100?mM NaCl) and it was demonstrated that their intact structure is necessary for the flocculation activity as treatment with protease K and diethyl ether, that remove the protein coat and the oil-core, respectively, dramatically decreased the flocculation activity. This study shows that oil-bodies have the potential to be novel, natural, sustainable, environmentally friendly and biodegradable flocculant candidates for water treatment.