Accession Number:

ADA512818

Title:

Treatment of RDX & HMX Plumes Using Mulch Biowalls

Descriptive Note:

Final rept.

Corporate Author:

GSI ENVIRONMENTAL INC HOUSTON TX

Personal Author(s):

Report Date:

2008-08-01

Pagination or Media Count:

78.0

Abstract:

Organic mulch is a complex carbon material that is typically populated with its own consortium of microorganisms. The organisms in mulch breakdown complex insoluble organics to soluble carbon, which can then be utilized by these and other microorganisms as an electron donor for treating contaminants via reductive pathways. Mulch has advantages over other electron donors it is cheaply available, long-lasting, and is naturally present in the environment. Over the last decade, organic mulch permeable reactive barriers PRB or biowalls have enjoyed increased public interest as a relatively cheap technology for addressing contaminated groundwater. The mulch PRB is a passive technology and consequently requires no aboveground injection system, thereby greatly reducing operating and maintenance costs. To date, biowalls have been installed to bioremediate groundwater contaminated with a variety of electrophilic compounds, including chlorinated solvents and inorganics such as nitrate and perchlorate. This field demonstration represents the first-ever application of mulch PRB for the treatment of explosives contamination in groundwater.

Subject Categories:

  • Organic Chemistry
  • Logistics, Military Facilities and Supplies
  • Water Pollution and Control
  • Ammunition and Explosives
  • Ecology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE