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UV/H2O2 Advanced Oxidation: Treatment of Taste and Odor Compounds and Characterization of Disinfection Byproduct Formation UV/H2O2高级氧化:味道和气味化合物的处理以及消毒副产物形成的表征
发布日期: 2005-11-01
本幻灯片概述了一项处理味道和气味化合物的试点研究,以及消毒副产物形成的特征,其目标是:基于 每个订单的电能(EEO) 减少geosmin和2-MIB; 监测AOP对氯的影响 衰退和 监测消毒副产物(DBP) 氯化后形成。优化过氧化氢剂量的原因如下:H2O2施加氯需求; 去除H2O2:添加过量氯,以及 操作问题(正确的剂量);和 最佳H2O2实际剂量 立场需要改变 尽可能低, 有效去除味道和气味,以及 尽量减少成本。第二个目标涉及: 验证AOP改变氯的假设 样品的衰减特性 更改名称; 测试初始水,单独紫外线光解,AOP 治疗(UV/H2O2) -1.5,2.5,4 mg/L氯; 在15分钟内监测游离氯残留, 1小时、24小时、48小时;和 氯气消耗量的增加可能会影响 DBP生产。DBP形成的第三个目标 涉及以下内容: 用0.2 mg/L的过氧化氢淬火 过氧化氢酶; 添加NaOCl以产生残余 24小时后1毫克/升(2.5毫克/升); 模拟配电系统 (SDS)测试:15分钟、24小时和48小时;和 测量THM和HAA9。包括2个参考文献、表格和图表。
This slide presentation outlines a pilot study for treating taste and odor compounds and the characterization of disinfection byproduct formation that had the objectives of: optimizing peroxide dose based on Electrical-Energy-per-Order (EEO) for reduction of geosmin and 2-MIB; monitoring the effect of AOP on chlorine decay; and, monitor disinfection byproduct (DBP) formation following chlorination. The reasons for optimizing peroxide dose are outlined as follows: H2O2 exerts chlorine demand; removal of H2O2: addition of excess chlorine, and operational concerns (correct dosing); and, optimal H2O2 dose from practical standpoint needs to be as low as possible, effective taste and odor removal, and minimize costs. The second objective involved: testing hypothesis that AOP alters chlorine decay characteristics of a sample through altering NOM; testing initial water, UV photolysis alone, AOP treatment (UV/H2O2) - 1.5, 2.5, 4 mg/L chlorine; monitor free chlorine residual at 15 min, 1 hour, 24 hrs, 48 hrs; and, increasing chlorine consumption may impact DBP production. The third objective of DBP formation following chlorination involved: peroxide quenched with 0.2 mg/L catalase enzyme; NaOCl dosed to result in residual of 1 mg/L after 24 hrs (2.5 mg/L); simulated distribution system (SDS) testing: 15 min, 24 & 48 hrs; and, measure THM and HAA9. Includes 2 references, tables, figures.
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发布单位或类别: 美国-美国给水工程协会
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