Skip to main content

Effects of Potassium and Magnesium in the Enhanced Biological Phosphorus Removal Process Using a Membrane Bioreactor

Buy Article:

$30.00 plus tax (Refund Policy)

Abstract:

This study assessed the role of potassium (K+), magnesium (Mg2+), and calcium (Ca2+) ions in the enhanced biological phosphorus removal (EBPR) from wastewaters using a membrane bioreactor (MBR). A linear relationship in the anaerobic and aerobic/anoxic phases for Puptake versus Prelease was obtained using the known equation ΔPuptake  =  a × ΔPrelease+ b, where the constants “a” and “b” were found to be 0.44 and 8.40, respectively. Both potassium and magnesium were soluble with phosphate in the anaerobic phase, but they accumulated again during the successive aerobic/anoxic phase. The linear correlation coefficients (R 2) of K+/PO4-P and Mg2+/PO4-P were calculated as 0.6682 and 0.8884, respectively. The molar ratio of CK/P during anaerobic phosphorus release was observed to be 0.20 mol/mol, whereas CMg/P was 0.21 mol/mol. Furthermore, unlike potassium and magnesium, calcium was not co-transported with phosphorus during the release and uptake processes.

Keywords: enhanced biological phosphorus removal; membrane bioreactor; metal cations; phosphate; wastewater treatment

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/106143010X12851009156808

Publication date: July 1, 2011

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
  • Ingenta Connect is not responsible for the content or availability of external websites
wef/wer/2011/00000083/00000007/art00005
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

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
X
Cookie Policy
Ingenta Connect 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