Factorial Experimental Designs for Enhancement of Concurrent Poly(Hydroxyalkanoate) Production and Brewery Wastewater Treatment

$30.00 plus tax (Refund Policy)

Buy Article:


The influence of four main process parameters—solids retention time (SRT), hydraulic retention time (HRT), anoxic‐oxic cycling, and carbon-to-nitrogen ratio (C/N ratio)—on poly(hydroxyalkanoate) (PHA) production, while treating brewery wastewater, was studied. Two sets of two-level, three-factor experimental designs were implemented to (1) determine the effects and interactions among process parameters, (2) assess their significance to PHA production, and (3) approximate optimal operational conditions. The HRT and SRT were found to be the crucial operational parameters affecting PHA production. The highest PHA content of 55% (on a cell-weight basis) was produced at a 4-day HRT and 4-day SRT, whereas a maximum PHA concentration of 907 mg/L was obtained at a 2-day HRT and 12-day SRT. The effect of anoxic conditions on PHA production was insignificant. The C/N ratio played a more important role in the PHA concentration in the system than in the PHA content in the biomass.
More about this publication?
  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • WEF Bookstore
  • ingentaconnect is not responsible for the content or availability of external websites



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more