| 高锰酸盐复合药剂预氧化缓解超滤膜藻类污染的中试研究 |
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| 引用本文： | 瞿芳术,梁恒,雒安国,田家宇,陈忠林,李圭白. 高锰酸盐复合药剂预氧化缓解超滤膜藻类污染的中试研究[J]. 环境科学学报, 2010, 30(7): 1366-1371 |
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| 作者姓名： | 瞿芳术 梁恒 雒安国 田家宇 陈忠林 李圭白 |
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| 作者单位： | 哈尔滨工业大学城市水资源与水环境国家重点实验室,哈尔滨,150090;哈尔滨工业大学城市水资源与水环境国家重点实验室,哈尔滨150090;城市水资源开发利用(北方)国家工程研究中心,哈尔滨150090;东营市自来水公司,东营,257091 |
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| 摘 要： | 通过中试试验考察了高锰酸盐复合药剂(PPC)预氧化强化混凝/沉淀/超滤的组合工艺的除藻效能以及PPC预氧化对藻类引起的膜污染的缓解作用,并对其机理进行了探讨.试验结果表明,投加0.6mg·L-1PPC能使预处理阶段对藻类的平均去除率提高约28%.组合工艺处理高藻水时,PPC预氧化通过强化预处理,降低膜表面的污染负荷,对藻源污染物引起可逆和不可逆污染均具有一定的缓解作用.化学清洗试验结果表明,碱洗对超滤膜TMP恢复效果远远强于酸洗,因而有机物是超滤膜处理高藻水时的主要污染物质.
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| 关 键 词： | 超滤膜 膜污染 高锰酸盐复合药剂 高藻水 |
| 收稿时间： | 2009-11-21 |
| 修稿时间： | 2010-03-04 |
Pilot study on the control of algal membrane fouling by preoxidation with potassium permanganate composites |
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| QU Fangshu,LIANG Heng,LUO Anguo,TIAN Jiayu,CHEN Zhonglin and LI Guibai. Pilot study on the control of algal membrane fouling by preoxidation with potassium permanganate composites[J]. Acta Scientiae Circumstantiae, 2010, 30(7): 1366-1371 |
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| Authors: | QU Fangshu LIANG Heng LUO Anguo TIAN Jiayu CHEN Zhonglin LI Guibai |
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| Affiliation: | State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090,State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090;National Engineering Research Center of Urban Water Resources, Harbin 150090,Dongying Water Supply Company, Dongying 257091,State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090;National Engineering Research Center of Urban Water Resources, Harbin 150090,State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090;National Engineering Research Center of Urban Water Resources, Harbin 150090 and State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090;National Engineering Research Center of Urban Water Resources, Harbin 150090 |
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| Abstract: | The integrated process of preoxidation, coagulation, sedimentation and ultrafiltration was used to treat algae-rich water and evaluate its algae removal efficiency in pilot experiments. The mitigation and mechanism of membrane fouling by the preoxidation with potassium permanganate composites (PPC) were discussed. The results showed that the average algae removal rate increased about 28% with preoxidation at a PPC dosage of 0.6 mg/L. When treating algae-rich water with the integrate process, PPC preoxidation could enhance the performance of the pretreatment and control reversible and irreversible membrane fouling by reducing foulant load on the membrane. The experiment results of chemical cleaning showed that the recovery of transmembrane pressure in alkaline cleanning was much greater than that in acidic cleanning, which indicated that the main foulants on the membrane in the ultrafiltration of algae-rich water were organic matters. |
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| Keywords: | Ultrafiltration membrance fouling Potassium permanganate composites(PPC) algae-rich water |
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