| 预氧化与水处理工艺协同去除剑水蚤 |
| 摘要点击 2436 全文点击 3131 投稿时间：2009-01-10 修订日期：2009-04-18 |
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| 中文关键词 剑水蚤 中试试验 协同去除作用 预氧化剂 氯胺 |
| 英文关键词 Cyclops pilot test cooperation pre-oxidation chloramines |
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| 中文摘要 |
| 利用不同水处理工艺中试系统，研究在液氯、氯胺、高锰酸盐复合药剂和O3这4种预氧化剂不同投量下，去除剑水蚤的方法以及4种预氧化药剂对原水中剑水蚤的实际灭活效果，并分析各工艺单元的除蚤机制.结果表明，预氧化阶段，液氯灭活率（25%）比氯胺（21%）、O3（9%）和高锰酸盐复合药剂（8%）都高；但滤后去除率发生变化，由高至低为氯胺（90%）>液氯（88%）>O3（83%）>高锰酸盐复合药剂（80%），采用氯胺与水处理工艺协同可达到100%去除效果.最高的预氧化灭活率并没有取得100%的去除效果，剑水蚤的去除取决于预氧化剂与澄清水处理工艺的合理配合，剑水蚤个体尺寸和预氧化后的生命活性也对去除效果有影响.其中过滤单元除蚤效率最高，单独去除率不低于50%；气浮池的除蚤性能受水蚤个体大小和活性影响. |
| 英文摘要 |
| The synergic removal effect on Cyclops was studied with 4 kinds of dosages of pre-oxidants such as chloramines，chlorine，O3 and potassium permanganate composite followed by different sets of clarification treatment process pilot systems. The removal mechanisms of Cyclops in different treatment units were analyzed. The experiments results show that the inactivation rate of chlorine (25%) is the highest compared with the chloramines (21%)，potassium permanganate composite (8%) and O3 (9%) in the pre-oxidation stage，while the removal rate is changed after the filtration and the sequence is chloramines (90%)>chlorine(88%)>O3 (83%)>potassium permanganate composite (80%). Only chloramines can remove Cyclops by 100% of removal rate with the treatment process with the conventional active carbon unit. The 100% of removal effect doesnt depend on the highest inactivation rate，but the reasonable cooperation between the pre-oxidation and the clarification treatment process. The size of Cyclops and its life activity are the important influencing factors. The individual removal rate of filtration unit is the highest with no lower than 50%. The removal effect of air-floatation unit is influenced by the size of Cyclops and its life activity. |
