Skip to main content

Winter and spring evaluations of a wetland for tertiary wastewater treatment

Buy Article:

$30.00 plus tax (Refund Policy)


The Union Electric Callaway Nuclear Power Plant currently uses a wetland that evolved after the retirement of a water treatment lagoon to supplement the existing mechanical wastewater treatment plant. The purpose of this study was to evaluate the wastewater treatment performance of the evolved wetland. Removal of biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), ammonium, nitrate, phosphate, and sulfate were monitored during winter 1992 and early spring 1993. Hydraulic and hydrologic assessments were also conducted to determine the effective treatment area and actual detention times. The organic loading during the study was low, resulting in moderate decreases or increases in BOD, COD, TSS, and ammonium. The wetland system provided excellent reduction in phosphate, nitrate, and sulfate. Removal of all constituents was significantly greater during the early spring sampling period than the winter period. Increased performance was probably caused by increased surface water temperature, vegetative uptake, and greater detention times. A large amount of short circuiting was observed within the system, reducing detention time and wastewater treatment performance.


Document Type: Research Article


Publication date: July 1, 1997

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

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Partial Open Access Content
Partial Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
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