【摘 要】
：
以水中2,4-二氯苯酚为目标污染物,比较了不同活化方式下过硫酸钠对2,4-二氯苯酚的降解去除效果以及热活化过硫酸钠降解2,4-二氯苯酚的影响因素.结果 表明,过硫酸钠的活化效果
【机 构】
：
东北林业大学林学院,黑龙江哈尔滨,150040
论文部分内容阅读
以水中2,4-二氯苯酚为目标污染物,比较了不同活化方式下过硫酸钠对2,4-二氯苯酚的降解去除效果以及热活化过硫酸钠降解2,4-二氯苯酚的影响因素.结果 表明,过硫酸钠的活化效果依次为:热活化＞碱活化＞超声波活化＞过氧化氢活化＞无活化.升温有利于提升过硫酸钠的活化效率,60℃时活化过硫酸钠的降解效果可达到最佳.热活化过硫酸钠降解的适宜条件为:2,4-二氯苯酚与过硫酸钠摩尔比为1:30、过硫酸钠分3次等量添加、pH为11～12、反应时间200 min,该条件下水中初始质量浓度为50 mg/L及以下的2,4-二氯苯酚几乎完全降解去除.研究结果表明,热活化过硫酸盐氧化法能高效去除水中的氯苯酚类污染物.
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