Characterization of algal organic matters of Microcystis aeruginosa

Biodegradability, DBP formation and membrane fouling potential

Shiqing Zhou, Yisheng Shao, Naiyun Gao, Yang Deng, Lei Li, Jing Deng, Chaoqun Tan

Research output: Contribution to journalArticleResearchpeer-review

62 Citations (Scopus)

Abstract

Algal organic matters (AOM), including extracellular organic matters (EOM) and intracellular organic matters (IOM), were comprehensively studied in terms of their biodegradability, disinfection byproduct (DBP) formation potentials and membrane fouling. EOM and IOM were fractionated into hydrophobic (HP), transphilic (TP) and hydrophilic (HL) constituents. The HP, TP and HL fractions of EOM and IOM were highly biodegradable with BDOC/DOC ranging from 52.5% to 67.4% and the DBP formation potentials followed the order of HP > TP > HL, except of IOM-HL. Biodegradable process proved very effective in removing the DBP formation potentials. Moreover, the AOM characteristics were also evaluated during ultrafiltration (UF) treatment. Results demonstrated that UF favourably remove DOC and DBP formation potential of IOM than those of EOM. And the HL constituents played a more important role in membrane fouling than HP and TP. The UF foulants exhibited higher BDOC/DOC than AOM, suggesting EOM and IOM might enhance biofouling because more biodegradable proteins and polysaccharides were found in membrane foulants. Therefore, appropriate biological treatment, ultrafiltration, or combination of the both are potential options to address these algae-caused water quality issues.

Original languageEnglish
Pages (from-to)199-207
Number of pages9
JournalWater Research
Volume52
DOIs
StatePublished - 1 Apr 2014

Fingerprint

Membrane fouling
Disinfection
Biodegradability
fouling
disinfection
Biological materials
Byproducts
membrane
organic matter
Ultrafiltration
ultrafiltration
biodegradability
Biofouling
biofouling
Polysaccharides
Algae
polysaccharide
Water quality

Keywords

  • Biodegradability
  • Disinfection byproducts
  • Extracellular organic matters
  • Intracellular organic matters
  • Ultrafiltration

Cite this

Zhou, Shiqing ; Shao, Yisheng ; Gao, Naiyun ; Deng, Yang ; Li, Lei ; Deng, Jing ; Tan, Chaoqun. / Characterization of algal organic matters of Microcystis aeruginosa : Biodegradability, DBP formation and membrane fouling potential. In: Water Research. 2014 ; Vol. 52. pp. 199-207.
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Characterization of algal organic matters of Microcystis aeruginosa : Biodegradability, DBP formation and membrane fouling potential. / Zhou, Shiqing; Shao, Yisheng; Gao, Naiyun; Deng, Yang; Li, Lei; Deng, Jing; Tan, Chaoqun.

In: Water Research, Vol. 52, 01.04.2014, p. 199-207.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Zhou, Shiqing

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