| 典型南方水强化混凝有机物分级处理研究 |
| 摘要点击 1757 全文点击 1498 投稿时间：2005-03-23 修订日期：2005-06-13 |
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| 中文关键词 强化混凝 PACl PAM 有机物分级 |
| 英文关键词 enhanced coagulation PACl PAM fractionation |
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| 中文摘要 |
| 采用强化常规工艺,对有效去除水体有机物,降低DBP前驱物进行了系统研究.通过烧杯试验和现场试验(中试和生产性试验)对强化混凝和使用PAM作助凝剂进行了对比;着重利用吸附树脂DAX-8的选择性吸附作用,测定了原水、沉后水的有机物分离分级组成状况.发现强化混凝和助凝强化对亲水性致UV254物质有较好地处理效果,去除率可达90%以上;现场条件下强化混凝对疏水碱性物和疏水酸性物有较好的处理能力,相应去除率分别为66%和35%;助凝强化对亲水性有机物效果较好,相应去除率为45%左右;但二者总体去除TOC效果相当. |
| 英文摘要 |
| Systematic studies on enhancing normal treatment processes were performed in order to remove aquatic organic matter economically and efficiently.Enhanced coagulation and polymer coagulant-aid coagulation were compared through jar tests and on-spot experiment(Pilot-scale and full-scale experiment).Fractionations of raw water and water after treatments of above two strategies were performed based on selective adsorption of resin DAX-8.It was found that matters causing UV absorbance at 254nm were well removed by above two treatments;removals of which could be achieved 90% or more.Hydrophobic bases and acids fractions were more removed under enhanced conditions with removals 66% and 35% respectively;while hydrophilic fraction could be better removed by about 45% using polymer coagulant aids.But the whole removals of the two strategies were almost equal. |
