载镁改性壳聚糖在氮磷废水处理中的应用研究

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关键词：载镁改性壳聚糖；氮磷废水；吸附

中图分类号：X703；0647.3 文献标志码：A 文章编号：1003-5168（2025）14-0077-04

DOI： 10.19968/j.cnki.hnkj.1003-5168.2025.14.015

Application of Magnesium-Loaded Modified Chitosan in Nitrogen and PhosphorusWastewater Treatment

CUI Haitao （JiningHydrological Center，Jining272Ooo， China）

Abstract： [Purposes] Magnesium-loaded modified chitosan （Mg-CS）was prepared by magnesium ion coordination modification using chitosanas raw material，and its application performance in nitrogen and phosphorus wastewater treatment was investigated.[Methods]FT-IR，XRD，SEM，XPSandother methods were used to characterize the materials，and the effects of pH value，contact time，temperature and other factors on the adsorption of phosphate and ammonium ions were analyzed.[Findings] The results showed that under optimal conditions，the maximum adsorption capacities of Mg-CS for phosphate and ammonium ions reached 68.7 mg/g （pH=4.5） and 42.3 mg/g （pH=7.5）， respectively.Allefluent indicators after treatment met the Class A discharge standards.[Conclusions] This material shows promising application prospects for the treatment of nitrogen and phosphorus wastewater.

Keywords： magnesium-loaded modified chitosan; nitrogen and phosphorus wastewater; adsorption

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