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净水厂残余铝的控制技术研究 被引量:1

Research on control technology of residual aluminum in water purification plant
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摘要 为降低净水厂出水残余铝超标风险,以南水北调水源为研究对象,从控制天然有机物络合位的角度提出了降低残余铝的技术措施。研究发现,采用单一的聚合氯化铝药剂作为混凝剂,为控制沉淀出水残余铝浓度其投加量在春季不宜为40mg/L;较预氯化和预臭氧,采用氯化铁和聚合氯化铝双药投加技术效果最好,可降低有机物络合铝的反应位,并能同时降低沉后水浊度和溶解性有机碳含量。采用聚合氯化铝和氯化铁双药投加,氯化铁投加量宜为8~12mg/L。研究为南水北调中线工程沿线水厂铝超标问题提供了行之有效的解决方案。
出处 《城镇供水》 2022年第6期38-43,108,共7页 CITY AND TOWN WATER SUPPLY
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