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作者:

Yang, Y. (Yang, Y..) | Li, H. (Li, H..) | Li, X. (Li, X..) | Guo, T. (Guo, T..) | Zhao, W. (Zhao, W..) | Jia, R. (Jia, R..) | Song, W. (Song, W..)

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摘要:

To enhance the removal of dissolved organic mattre in micro-polluteol water, a combined process of powdered activated carbon (PAC) loaded with silver and ultrafiltration (UF) was used to treat a micro-polluted raw water. Removal effects of DOC, UV254 and influence of membrane fouling control were investigated. Results indicate that, compared with the conventional PAC, the DOC and UV254 removal are significantly improved by PAC loaded with silver. The DOC and UV254 removal are enhanced with the increase of PAC silver content at 0.10%, 0.50%, 1.00% respectively and PAC dosage at 50, 60, 80 and 100 mg/L, but the removal of UV254 and DOC of unit mass PAC loaded with silver are reduced. It can meet the demand of effluent quality at the dosage of 80 mg/L and the content of 0.50%. PAC loaded with silver can further remove the humic substances in the ultraviolet region; The adsorption equilibrium of PAC loaded with silvers achieved in 20 minutes and the adsorption of organic matter is better under acidic conditions. By PAC loaded with silver, membrane fouling can be better controlled,membrane flux recovery can be better received after finishing backwashing, and membrane pollution index increases slowly. © 2016, Beijing University of Technology. All right reserved.

关键词:

Dissolved organic matter; Membrane fouling; Powdered activated carbon; Silver content; Ultrafiltration

作者机构:

  • [ 1 ] [Yang, Y.]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 2 ] [Li, H.]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 3 ] [Li, X.]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Guo, T.]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 5 ] [Zhao, W.]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, 100124, China
  • [ 6 ] [Jia, R.]Ji'nan Water and Wastewater Monitoring Center, Jinan, 250021, China
  • [ 7 ] [Song, W.]Ji'nan Water and Wastewater Monitoring Center, Jinan, 250021, China

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来源 :

Journal of Beijing University of Technology

ISSN: 0254-0037

年份: 2016

期: 6

卷: 42

页码: 939-945

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