Abstract

Oil spill accidents are significant environmental incidents that threaten environmental and ecological health. Among them, marine oil spills can cause severe damage to coastal residents and shoreline ecosystems. To enable effective response while minimizing additional environmental impacts, exploring and evaluating the potential use of low-toxicity chemicals for shoreline cleaning is crucial. This thesis begins with a comprehensive review of domestic and international literature, focusing on oil spill response techniques and the application of food-grade chemicals. Secondly, the study identified ovalbumin-based washing fluids as a promising option for shoreline oil removal. The effects of various environmental factors on the oil removal performance of ovalbumin washing fluids were examined. Different methods for the responsive separation of washing effluents were explored, and the separated precipitates demonstrated efficient decomposition using thermal and biodegradation methods. Thirdly, the oil removal performance of Accell Clean SWA under various low-temperature environmental conditions was assessed. Experimental results indicated that salinity and SWA concentration were the most significant factors influencing its effectiveness. Toxicity evaluations suggested that Accell Clean SWA is likely no more toxic than Corexit 9580 and PES-51, which have already been tested in real oil spill scenarios. The findings of this study provide valuable insights for developing potential green solutions for emergency responses to marine oil spills.