INNOVATIVE TECHNOLOGY REDUCES STORMWATER TRASH

This article describes the problem of stormwater gross pollutants (such as paper, plastics, natural debris) and how a new technology called continuous deflective separation (CDS) is being used to trap and treat these wastes. CDS technology was invented in Australia in 1992 by Steve Crompton and Paul Blanche. After two years of testing and development, the first units were installed in Australia in 1994. The company, CDS Technologies, now has over 200 units installed worldwide. The CDS device is installed in stormwater channels and works by diverting the incoming flow of stormwater into a pollutant separation and containment chamber. Solids within the separation chamber are kept in continuous motion and are prevented from "blocking" the screen. Water passes through the screen and flows downstream. The non-blocking screen ensures that all gross pollutants are retained except for flows that overflow the by-pass weir during large floods. Heavier materials settle into a containment sump from where they can be routinely removed (typically every three to six months) using vacuum trucks or specially designed sump baskets.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1606878
• Corporate Authors:

  Public Works Journal Corporation

  200 South Broad Street
  Ridgewood, NJ  United States  07451
• Authors:
  • Allison, R A
• Publication Date: 1999-2

Language

• English

Media Info

• Features: Figures;
• Pagination: p. 28-32
• Serial:
  • Public Works
  • Volume: 130
  • Issue Number: 2
  • Publisher: Hanley Wood
  • ISSN: 0033-3840
  • Serial URL: http://www.pwmag.com

Subject/Index Terms

• TRT Terms: Debris removal; Pollutants; Runoff; Storm sewers; Technology; Water pollution; Water quality
• Uncontrolled Terms: Trash
• Geographic Terms: Australia
• Subject Areas: Design; Environment; Highways; Hydraulics and Hydrology; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 00760007
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 11 1999 12:00AM