聚合氯化铝－高岭土联用去除水源水二价铁的应用研究

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中图分类号：TU991.2；X703 文献标识码：A 文章编号：1008-9500(2025)11-0265-04

DOI: 10.3969/j.issn.1008-9500.2025.11.083

Application Study on Polyaluminum Chloride - Kaolin Combination for Removing Divalent Iron from Source Water

HUANG Qiudong (Wuzhou Yuehai Jianghe Water Co.,Ltd.,Wuzhou543OO2,China)

Abstract: In response tothe problemof excessive divalent ironcaused byasuddendropindissolvedoxygen inrawwaterat a water plantin the Southern China,acombined process of polyaluminumchlorideand kaolinisproposed to systematically evaluate its emergencytreatment eficiencyandapplicability.Afteron-sitetesting anddata analysis,itis foundthat when the dosage of kaolinisincreased to 150mg/L ,the iron content in the filtered water decreases to O.O7 mg/L under the condition of a rawwater iron content of 0.30mg/L ,a decrease of 76.6% . This process does not require the use of complex equipment andissuitableforseasonal polution scenarios inold water plantsand lakereservoirs,it has the advantages of lowcost and easy operation,providing afeasible technical path for the treatment ofsimilar water quality problems.At the same time,the dosing strategy isoptimized,andthe applicationscenarios of kaolin is expanded inwater treatment.

Keywords: divalent iron;kaolin;adsorbent;oxidation

近年来，水源中铁超标问题日益凸显，根据《生活饮用水卫生标准》（GB5749—2022）[]，出厂水中铁含量的限值为 0.3mg/L 。（剩余6314字）