铜（II)-亚硫酸钠高级还原体系降解泛影酸钠效能

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中图分类号：TU992.3 文献标志码：A

Abstract：Toachieve eficient degradationof sodium diatrizoateunder anaerobic conditions，acopper（I）-sodium sulfite advancedreduction system was constructed.The eficacyand mechanism of the copper（I）-sodium sulfite system in degrading sodium diatrizoate were elucidated through single-factor experimental analysis，radical scavenging assay，and probeexperiments，aswellas productdegradation analysis.The resultsshow that the optimal reaction conditions for he copper（II）-sodiumsulfite system todegrade sodium diatrizoate under anaerobicconditionsarepHof7，sodiumdiatrizoate concentration of 2.5μmol/L ，copper（ II） concentration of O.15 mmol/L，and sodium sulfite concentration of 1. O mmol/L， the degradation rate of sodium diatrizoate reaches 92.4% after 6O min of reaction. The primary reactive species in the anaerobiccopper（II）-sodium sulfite system fordegrading sodium diatrizoate is copper（I），and the degradation process primarilyinvolvesdeiodinationreactions.Itisalsofoundthatbicarbonateions significantlyinhibithedegradationofsodium diatrizoate by the system.

Keywords： copper ion; sodium sulfite； advanced reduction system; anaerobic condition； sodium diatrizoate

随着社会经济的快速发展，各类新污染物在水环境中被频繁检出，如药品和个人护理用品（PPCPs）等，对生态环境质量和饮用水安全带来巨大风险。（剩余13211字）