地下水中环丁砜和胺的混合行为对污染物迁移的影响

Sulfolane and Amine Mixing Behaviour in Groundwater:Implications for Pollutant TransportProfessor Erica PensiniWhat is sulfolane?•Sulfolane is used to sweeten sour gas and as a phase splitter in carbon capture and storage•Sulfolane hampers fertility –studies are ongoing to assess toxicity•Sulfolane plumes exist across the globe•Sulfolane biodegrades only under aerobic conditions, and it is reported to be highly mobile due to its solubility in water, but…is this always the case?Sulfolane Miscibility in Water•The miscibility of sulfolane in water is due to hydrogen (H) bonding between the oxygen of the -S=O groups and the hydrogens of waterHHHOSulfolane Miscibility in Water•The miscibility of sulfolane in water is affected by groundwater chemistry:•IONS: naturally present or due to industrial activities, e.g., sulfate ions released from leaching of S piles•Bacterial activity: amino acid and proteins, more abundant if contaminant-degrading bacteria proliferate•Co-contaminants, such as ami