Performance of advanced water treatment plant for removing Fe, Mn and organic pollutants from raw water

Lin Wang, Baozhen Wang, Dai Wang, Weijia Zhang, Yunan Yang, Yianwu Du, Qinjin Kong

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

In the case of treating a source water containing higher concentrations of Fe2+, Mn2+ and organic pollutants, the Fe2+ was partially removed by pretreatment steps of aeration-sand filtration, while Mn2+ and organics were removed mainly by an ozonation-BAC process. The performance of the advanced treatment plant and removal mechanisms are studied in this paper. The optimal O3 dosage and residual O3 were found to be 4 mg l-1 and 0.4 mg l-1, respectively, for which the Fe2+, Mn2+ and CODMn removals reached 98%, 95% and 85.5% respectively. GC/MS analytical results showed that the advanced water treatment plant was very efficient in micro-organic pollutant removal. The total species decreased from 59 in the raw water to 50, 40 and 26 in the effluents of the sand filter, ozonation column and BAC filter, respectively. The priority and potentially hazardous pollutant species decreased from 16 in the raw water to 10, 8 and 5 in the corresponding effluents, respectively.

Original languageEnglish
Pages (from-to)209-216
Number of pages8
JournalJournal of Water Supply: Research and Technology - AQUA
Volume51
Issue number4
DOIs
StatePublished - 2002
Externally publishedYes

Keywords

  • Advanced treatment
  • Biological activated carbon
  • Iron
  • Manganese
  • Organic pollutants
  • Ozonation

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