Sprinkler Irrigation

Description

Sprinkler irrigation is a relatively simple treatment technology used to volatilize volatile organic compounds (VOCs) from contaminated wastewater. The process uses pressure to force water contaminated with VOCs through a sprinkler irrigation system. As the water is sprayed in the air, VOCs vaporize and are released directly to the atmosphere.

Limitations and Concerns

The system causes the direct release for contaminants to the atmosphere. Emission control is not feasible.

Sprinkler irrigation systems transfer contaminants from one medium to another. There is no destruction of the contaminant. Consequently, the risks of emitting pollutants into the air must be carefully evaluated.

A large amount of space is required.

Added surface water flow may promote ponding in low areas and runoff and erosion on slopes.

Suspended solids can plug spray nozzles, Pumped groundwater may require some pretreatment to remove the solids.

Sprinkler irrigation is not appropriate for contaminated water containing heavy compounds such as metals, some fuels, and semi-volatile organic compounds (SVOC).

Lower temperatures may effect performance.

Applicability

Sprinkler irrigation is used to treat VOCs in groundwater. It is used primarily to treat contaminants that readily transfer from the dissolved phase to the vapor phase. It is only applicable for groundwater containing very low concentration of contaminants.

Technology Development Status

This technology is commercial.

Web Links

http://www.frtr.gov/matrix2/section4/4_55.html

http://enviro.nfesc.navy.mil/erb/restoration/technologies/remed/phys_chem/phc-32.asp

Other Resources and Demonstrations

None have been identified.