Inhibitory effects of polar and non-polar organic substances on activated sludge activity

V. J. Inglezakis, A. Kudarova, D. Tarassov, A. Jetybayeva, Y. Myngtay, D. Zhalmuratova, D. Nurmukhambetov

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

As is well known, several organic compounds, more often found in industrial wastewater, exhibit inhibitory effects on biomass activity, therefore, leading to poor wastewater treatment efficiency. This study presents the experimental results on the inhibition effects of 14 polar and non-polar organic compounds on the activity of activated sludge in the concentration range of 50–1,000 ppm. Two different activated sludge samples used, one of low activity and another of high activity. The organic compounds tested are: phenol, 2-chlorophenol, nitrophenol, resorcinol, dioxane, acetonitrile and benzotriazole (polar); and toluene, styrene, cyclohexane, tetrachloromethane, paraxylene, benzene and hexane (non-polar). The results demonstrate that polar compounds exhibit higher toxicity than non-polar compounds and hydrophobicity plays a crucial role. The effects of polarity, hydrophobicity, solubility and volatility are discussed and the conclusion is that inhibition is complex phenomenon requiring extensive theoretical and experimental studies.

Original languageEnglish
Pages (from-to)185-191
Number of pages7
JournalDesalination and Water Treatment
Volume91
DOIs
Publication statusPublished - Oct 1 2017

Fingerprint

Organic compounds
activated sludge
organic compound
hydrophobicity
Hydrophobicity
chlorophenol
Cyclohexane
Hexane
theoretical study
Acetonitrile
Wastewater treatment
toluene
Phenols
benzene
Toluene
Toxicity
phenol
Styrene
Benzene
Biomass

Keywords

  • Inhibition
  • Organic compounds
  • OUR
  • Recycle activated sludge

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

Cite this

Inglezakis, V. J., Kudarova, A., Tarassov, D., Jetybayeva, A., Myngtay, Y., Zhalmuratova, D., & Nurmukhambetov, D. (2017). Inhibitory effects of polar and non-polar organic substances on activated sludge activity. Desalination and Water Treatment, 91, 185-191. https://doi.org/10.5004/dwt.2017.20783

Inhibitory effects of polar and non-polar organic substances on activated sludge activity. / Inglezakis, V. J.; Kudarova, A.; Tarassov, D.; Jetybayeva, A.; Myngtay, Y.; Zhalmuratova, D.; Nurmukhambetov, D.

In: Desalination and Water Treatment, Vol. 91, 01.10.2017, p. 185-191.

Research output: Contribution to journalArticle

Inglezakis, VJ, Kudarova, A, Tarassov, D, Jetybayeva, A, Myngtay, Y, Zhalmuratova, D & Nurmukhambetov, D 2017, 'Inhibitory effects of polar and non-polar organic substances on activated sludge activity', Desalination and Water Treatment, vol. 91, pp. 185-191. https://doi.org/10.5004/dwt.2017.20783
Inglezakis, V. J. ; Kudarova, A. ; Tarassov, D. ; Jetybayeva, A. ; Myngtay, Y. ; Zhalmuratova, D. ; Nurmukhambetov, D. / Inhibitory effects of polar and non-polar organic substances on activated sludge activity. In: Desalination and Water Treatment. 2017 ; Vol. 91. pp. 185-191.
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