微米零价铁对水中铜离子的去除效果研究

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中图分类号：X703；TB302.4 文献标识码：A 文章编号：1672-0105（2025）03-0069-05

Study on the Removal Efficiency of Copper Ion in Water by Micron-sized Zero-valent Iron

Abstract：To address thechalenge ofcopper-containing wastewater treatment，this study delvesinto theeffcacyof micron-sized zero-valent iron （mZVI） inremoving heavy metal copper ions from water.Takingcopper ions—the primary heavy metal pollutantinwater—astheresearchobject，thestudysystematicallinvestigatesthecopperionremovalefficiencyand mechanism of mZVI by adjusting the solution pH value，initial copper ion concentration， and mZVI dosage，while integrating characterizationtechniques such asscaning electronmicroscopy （SEM），X-ray photoelectron spectroscopy （XPS），and Fourier-transforminfraredspectroscopy（FTR），aswellasineticaalysis.ExperimentalresultsshowthatthemZVIachievsth optimal copper ion removal effect when the pH is 6，the initial copper ion concentration is 20mg/L ，and the mZVI dosage is 0.1g/L with a removal rate of up to 99.8% .The removal process conforms to the first-order kinetic model. Characterization results confirm thatthe mainmechanismsofcopperionremovalbymZVIarechemicalreductionandco-precipitation.Theresearch fidings clarify theoptimal processparametersfortreatingopper-ontainingwastewaterwithmZVI，evealitsctionmechanism，ndprovide theoretical support and technical reference for the practical application of mZVI in heavy metal polution control.

Keywords：micron-sized zero-valent iron; copper-containing wastewater treatment; copper ions; removal mechanism

自改革开放以来，随着我国轻工业和重工业蓬勃发展，地表水和地下水环境出现重金属污染的问题日益严峻。（剩余7169字）