Presentation
Exploring the Performance and Mechanisms of Green Nanomaterials-based Fluids for Shoreline Oil Spill Response
SessionMeet the Poster Authors
DescriptionIn our recent studies, we developed innovative, environmentally benign, and stimuli-responsive surface washing fluids for oiled shoreline cleanup. Firstly, we developed a novel and dual-responsive nanoclay/sodium alginate (NS) washing fluid and systematically evaluated its application potential in an oiled shoreline cleanup. The NS washing agent displayed excellent pH- and Ca2+- responsiveness, generating transparent supernatants with low oil concentration and turbidity.
Secondly, an innovative green surface washing method based on sodium caseinate (NaCas) was proposed for the cleanup of oiled sand that is removed from the shoreline and treated by washing ex-situ. The addition of NaCas can decrease both surface and interfacial tensions, thereby facilitating oil diffusion and leading to a higher oil removal performance. Moreover, biotoxicity tests proved that the presence of NaCas could relieve the toxicity caused by oil droplets. The molecular dynamic simulation further revealed that NaCas could break the oil layer on the sand surface and move the oil droplets away from the sand.
Thirdly, an eco-friendly, recyclable, and magnetically mediated surface washing fluid based on water-dispersible magnetite nanoparticles has been designed. Apart from the effective surface washing, the magnetite nanoparticles showed a good performance of oil recovery from the washing effluent. Notably, thermodynamic modeling proved that the magnetite enhanced the oil-fluid miscibility and the results were in alignment with the experimental findings.
In summary, we believe that the proposed green surface washing fluids, with a low cost, good reusability and stability, and responsiveness, warrant further investigation as a basis for the cleanup of oil-contaminated sand beaches.
Secondly, an innovative green surface washing method based on sodium caseinate (NaCas) was proposed for the cleanup of oiled sand that is removed from the shoreline and treated by washing ex-situ. The addition of NaCas can decrease both surface and interfacial tensions, thereby facilitating oil diffusion and leading to a higher oil removal performance. Moreover, biotoxicity tests proved that the presence of NaCas could relieve the toxicity caused by oil droplets. The molecular dynamic simulation further revealed that NaCas could break the oil layer on the sand surface and move the oil droplets away from the sand.
Thirdly, an eco-friendly, recyclable, and magnetically mediated surface washing fluid based on water-dispersible magnetite nanoparticles has been designed. Apart from the effective surface washing, the magnetite nanoparticles showed a good performance of oil recovery from the washing effluent. Notably, thermodynamic modeling proved that the magnetite enhanced the oil-fluid miscibility and the results were in alignment with the experimental findings.
In summary, we believe that the proposed green surface washing fluids, with a low cost, good reusability and stability, and responsiveness, warrant further investigation as a basis for the cleanup of oil-contaminated sand beaches.
Event Type
Poster
TimeMonday, May 13th5:00pm - 6:00pm CDT
LocationExhibit Hall G
Preparedness
Prevention
Remediation
Response
Restoration