Faculty of Engineering and Applied Science, Memorial University, St. John's, NL, A1B 3X5, Canada.
Environ Sci Pollut Res Int. 2018 Apr;25(10):9443-9453. doi: 10.1007/s11356-018-1222-0. Epub 2018 Jan 20.
In this study, shrimp waste was enzymatically hydrolyzed to generate a green dispersant and the product was tested for crude oil dispersion in seawater. The hydrolysis process was first optimized based on the dispersant effectiveness (DE) of the product. The functional properties of the product were identified including stability, critical micelle concentration, and emulsification activity. Water was confirmed as a good solvent for dispersant generation when compared with three chemical solvents. The effects of salinity, mixing energy, and temperature on the dispersion of the Alaska North Slope (ANS) crude oil were examined. Microtox acute toxicity test was also conducted to evaluate the toxicity of the produced dispersant. In addition, DE of the product on three different types of crude oil, including ANS crude oil, Prudhoe Bay crude oil (PBC), and Arabian Light crude oil (ALC) was compared with that of the Corexit 9500, respectively. The research output could lead to a promising green solution to the oil spill problem and might result in many other environmental applications.
在这项研究中，虾废料经酶解生成一种绿色分散剂，并测试其在海水中对原油的分散效果。首先根据产物的分散剂有效性（DE）对水解过程进行优化。鉴定了产物的功能特性，包括稳定性、临界胶束浓度和乳化活性。与三种化学溶剂相比，水被确认为生成分散剂的良好溶剂。还研究了盐度、混合能量和温度对阿拉斯加北坡（ANS）原油分散的影响。还进行了微毒急性毒性试验来评估所产生的分散剂的毒性。此外，还比较了产物对三种不同类型的原油（包括 ANS 原油、普拉德霍湾原油（PBC）和阿拉伯轻质原油（ALC））的 DE 与科瑞希特 9500 的 DE。研究结果可为解决溢油问题提供有前途的绿色解决方案，并可能在许多其他环境应用中得到应用。
