在海洋环境中有效分散原油的羽蛋白分散剂
Yaw Kwakye Adofo1, Emmanuel Nyankson1, Benjamin Agyei-Tuffour1
1Material Science and Engineering Department, School of Engineering Sciences, University of Ghana, Legon-Accra LG 77, Ghana.
ACS omega
|October 2, 2023
概括
羽蛋白 (CFP) 用于制造原油的环保分散剂. 这种新型分散剂证明了在海水中有效分散油,对海洋生物的毒性最小.
科学领域:
- 环境科学 环境科学
- 海洋生物学 海洋生物学
- 生物化学 生物化学
背景情况:
- 石油泄漏中使用的化学分散剂对海洋生态系统有毒.
- 具有乳化特性的天然材料为合成分散剂提供了潜在的替代品.
- 羽是一种易于获得的蛋白质来源 (≥90%),适合分散剂配方.
研究的目的:
- 开发和评估一种新的,环保的原油分散剂,从羽蛋白 (CFP).
- 评估CFP分散剂在海水中分散原油的有效性.
- 为了确定CFP分散剂对海洋生物的毒性.
主要方法:
- 从羽中提取蛋白质,并使用脱离离子水合成羽蛋白 (CFP) 分散剂.
- 评估乳液稳定性和滴滴大小.
- 评估海水中的表面和界面活动.
- 使用美国环保署的混瓶试验来确定分散的有效性.
- 对尼罗河鱼进行急性毒性测试 (LC50确定).
主要成果:
- CFP分散剂形成了具有小水滴大小的稳定乳液,表明凝聚速度缓慢.
- 在典型的海水度下,CFP表现出适度的表面和界面活动.
- 在CFP表面活性剂与油的比分分别为800和1000毫克/毫升时,散效率达到56.92%和68.64%.
- 急性毒性测试显示,CFP对尼罗河鱼几乎无毒,96小时后LC50>100毫克/升.
结论:
- 羽蛋白 (CFP) 是制定环保原油分散剂的可行和有效来源.
- 由于其有效性和低毒性,CFP分散剂具有显著的潜力,可以减轻石油泄漏对环境的影响.
- 使用CFP作为分散剂代表了对海洋石油泄漏管理的可持续方法.
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