Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Design principles for wetland treatment systems /
Author Hammer, David E.
Other Authors
Author Title of a Work
Kadlec, Robert H.
Publisher Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1983
Report Number EPA/600-S2-83-026
OCLC Number 607082151
Subjects Wetlands--United States. ; Sewage.
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-S2-83-026 In Binder Headquarters Library/Washington,DC 11/29/2017
ELBD RPS EPA 600-S2-83-026 repository copy AWBERC Library/Cincinnati,OH 08/09/2017
Collation 7, [1] pages : illustrations, charts ; 28 cm
Caption title. "May 1983." At head of title: Project summary. "EPA/600-S2-83-026."
Contents Notes
"Published data pertaining to the treatment of wastewater by wetland irrigation have been assembled and analyzed to begin identifying general principles for the successful design of wetland facilities. Sources of operating data have been tabulated. Performance is roughly correlated with overall system features, but cannot be predicted on the current basis. Existing compartmental models require more detailed information than does or will exist; thus a simplified compartment model is presented. Water quality is controlled by rapid processes related to water movement, mass transport to other compartments, and consumption kinetics. Thus, wetland hydrology is fundamental to the analysis of water quality improvement. The ultimate fate of nutrients and contaminants is determined by sedimentation, biomass production and harvest, soil and microbial processes. Required wetland area depends on effluent quality, ecosystem type and age, and hydraulic regime. These questions can be addressed in terms of a mass transport model for the zone of rapid removal, and a "saturation" model for the expansion of a zone of stabilized activity about the discharge point. Material balances, considering only long-term consumption mechanisms for nutrients and other pollutants, determine the useful life and ultimate performance of a wetland system. Operational techniques and the use of constructed wetlands are also considered. The economics of wetland treatment are discussed."