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Comparative study of dissolved air flotation and sedimentation process for treating reservoir water with low temperature, low turbidity and high natural organic matter

  • Jing Zou
  • , Juntao Zhu
  • , Chao Pan
  • , Jun Ma*
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Urban Water Resources Development and Northern National Engineering Research Center

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this research, the dissolved air flotation (DAF) were tried to treat drinking water to replace traditional sedimentation technology. Experimental study of sedimentation process and DAF was carried out in a jet tester and a glass bubble column respectively. The experimental results demonstrated that the indicators of water quality such as turbidity, chromaticity and COD Mn after two processes decreased firstly and then increased with the PAC-dose increasing, and 7.41 mg Al L -1 was the optimum PAC dosage. Moreover, with the optimum PAC dosage, water quality after DAF proved much better than that after sedimentation process. As a result, DAF is a more effective technology to treat the reservoir water with low temperature, low turbidity and high NOM.

Original languageEnglish
Title of host publicationFrontiers of Green Building, Materials and Civil Engineering
Pages2767-2771
Number of pages5
DOIs
StatePublished - 2011
Event2011 International Conference on Green Building, Materials and Civil Engineering, GBMCE 2011 - Shangri-La, China
Duration: 22 Aug 201123 Aug 2011

Publication series

NameApplied Mechanics and Materials
Volume71-78
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2011 International Conference on Green Building, Materials and Civil Engineering, GBMCE 2011
Country/TerritoryChina
CityShangri-La
Period22/08/1123/08/11

Keywords

  • Dissolved air flotation
  • Drinking water
  • Low temperature
  • Low turbidity
  • Natural organic matter
  • Reservoir water
  • Sedimentation

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