| 摘要 |
<p>An organic oil boom is a method for containing pollution floating on water or the sea. The invention describes a method that makes it possible to isolate pollution as, for example, oil, from the surrounding environment. Spraying a viscous liquid such as an alginate or chitosan solution over and around the oil results in isolation of the oil from the seawater as the mixture has a density that is lighter than seawater and heavier than oil. To isolate the oil also from the air, a gas is added so that the density of the mixture is lower than the density of the oil. The addition of a multivalent cation solution such as calcium ions will, under the right pH conditions, polymerise the viscous liquid, thus forming a solid polymer film which surrounds the oil and isolates it from the surrounding environment.</p> |
