Operation of fill-and-draw reactors fed with Bisphenol A as sole carbon and energy source

Davide Dionisi, Bridget Erekaife, Jennifer MacLean

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

While there is ample evidence in the literature that many organic xenobiotics can be biodegraded as sole carbon and energy source by pure batch cultures of selected microorganisms, the same evidence is very limited for continuous or semi-continuous mixed-culture processes simulating biological wastewater treatment plants. This study investigates for the first time whether Bisphenol A (BPA) can be removed and used as sole carbon and energy source by mixed microbial cultures in a semi-continuous process. Four fill and draw bioreactors were inoculated with unacclimated soil and operated at various hydraulic retention times (HRT), in the range of 1.7‐4.2 d, using a feed composed solely of BPA (115 mg/l), and mineral salts. At steady-state, the BPA removal in the four reactors varied in the range 7.5‐19% and did not show a significant trend with the HRT. The maximum growth rate on BPA was measured in the range 0.29‐1.54 d−1.
Original languageEnglish
Pages (from-to)2194-2201
Number of pages8
JournalWater Environment Research
Volume86
Issue number11
DOIs
Publication statusPublished - Nov 2014

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fill
carbon
hydraulics
xenobiotics
bioreactor
microorganism
salt
mineral
energy source
reactor
soil
trend
wastewater treatment plant
removal
biological wastewater treatment

Keywords

  • bisphenol A
  • modeling
  • wastewater treatment
  • xenobiotics

Cite this

Operation of fill-and-draw reactors fed with Bisphenol A as sole carbon and energy source. / Dionisi, Davide; Erekaife, Bridget; MacLean, Jennifer.

In: Water Environment Research, Vol. 86, No. 11, 11.2014, p. 2194-2201.

Research output: Contribution to journalArticle

Dionisi, Davide ; Erekaife, Bridget ; MacLean, Jennifer. / Operation of fill-and-draw reactors fed with Bisphenol A as sole carbon and energy source. In: Water Environment Research. 2014 ; Vol. 86, No. 11. pp. 2194-2201.
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