KMnO<sub>4</sub>预氧化强化混凝沉淀对太湖高藻水DON去除研究

张谦; 刘晓冬; 邓非凡

doi:10.3969/j.issn.1674-991X.2018.05.069

KMnO₄预氧化强化混凝沉淀对太湖高藻水DON去除研究

doi: 10.3969/j.issn.1674-991X.2018.05.069

军事科学院国防工程研究院,北京 100036

详细信息

中图分类号: X524
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出版历程
- 收稿日期: 2018-03-26
- 刊出日期: 2018-09-20

Research on removal of Taihu Lake algal source DON by KMnO₄ pre-oxidation and coagulation sedimentation

Research Institute for National Defense Engineering, Academy of Military Science PLA China, Beijing 100036, China

摘要

摘要: 利用小试试验研究了KMnO₄预氧化强化混凝沉淀对模拟太湖高藻水中的溶解性有机氮(DON)的去除效能,并通过分子量分布测定、双向电泳等手段初步分析了其作用机理。结果表明,当KMnO₄浓度为1.00 mg∕L,预氧化时间为30 min,PAC浓度为20 mg∕L时,对DON去除率为36.0%,浊度去除率和藻细胞去除率分别为88.3%、93.0%。KMnO₄预氧化强化混凝沉淀可作为水源水高藻爆发时去除DON的应急处理预案。
- KMnO₄预氧化 /
- 混凝沉淀 /
- 溶解性有机氮(DON) /
- 藻类
Abstract: The removal efficiency of dissolved organic nitrogen (DON) in the algae-laden water using KMnO₄ pre-oxidation and enhanced coagulation sedimentation was studied by experiment. The mechanism was analyzed using molecular weight distribution measuring method and two-dimensional electrophoresis method. The results showed that the optimal working condition happened when KMnO₄ dosage was 1.00 mg∕L, the pre-oxidation time were controlled in 30 min, and the PAC dosage was 20 mg∕L, then the DON removal rates reached 36.0%, the turbidity and algae removal rates reached 88.3% and 93.0%. KMnO₄ pre-oxidation enhanced coagulation sedimentation can be used as an emergency treatment option for the removal of DON when the source water algae bloom.
- KMnO₄ pre-oxidation /
- coagulation /
- dissolved organic nitrogen (DON) /
- algal

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参考文献(15)

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