Freshwater weed crops are capable of simultaneously providing advanced treatment (nutrient removal) of wastewater passed through them and producing biomass that may be converted to fuel by anaerobic digestion. Performance of both functions depends upon the rate of primary organic production of the plant species in question. Annual yields of the floating species Lemna minor (duckweed) and Eichhornia crassipes (water hyacinth) and of the submerged species Hydrilla verticillata were determined in central Florida. Yields of duckweed and Hydrilla, 13.5 and 15.3 m tons/ha.year respectively, are comparable to many temperate terrestrial food and grass crops. The yield of water hyacinths, 88.3 m tons/ha.year, is among the highest documented for any plant species on earth.
Member of
Publisher
American Water Resources Association.
Date Issued
1979
Note
Language
Type
Genre
Form
Extent
22 p.
Subject (Topical)
Identifier
FA00007077
Additional Information
Freshwater weed crops are capable of simultaneously providing advanced treatment (nutrient removal) of wastewater passed through them and producing biomass that may be converted to fuel by anaerobic digestion. Performance of both functions depends upon the rate of primary organic production of the plant species in question. Annual yields of the floating species Lemna minor (duckweed) and Eichhornia crassipes (water hyacinth) and of the submerged species Hydrilla verticillata were determined in central Florida. Yields of duckweed and Hydrilla, 13.5 and 15.3 m tons/ha.year respectively, are comparable to many temperate terrestrial food and grass crops. The yield of water hyacinths, 88.3 m tons/ha.year, is among the highest documented for any plant species on earth.
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 122
This manuscript is an author version with the final publication available and may be cited as: Ryther, J. H., DeBusk, T. A., Hanisak, M. D., & Williams, L. D. (1978). Freshwater macrophytes for energy and wastewater treatment. In P. E. Greeson, J. R. Clark, & J. E. Clark (Eds.), Wetland functions and values: The state of our understanding: proceedings of the National Symposium on Wetlands held in Disneyworld Village, Lake Buena Vista, Florida, November 7-10, 1978. Minneapolis: American Water Resources Association.
Date Backup
1979
Date Text
1979
Date Issued (EDTF)
1979
Extension
FAU
IID
FA00007077
Person Preferred Name
Ryther, John H.
Physical Description
22 p.
Title Plain
Freshwater macrophytes for energy and wastewater treatment
Origin Information
1979
American Water Resources Association.
Minneapolis
Place
Minneapolis
Title
Freshwater macrophytes for energy and wastewater treatment
Other Title Info
Freshwater macrophytes for energy and wastewater treatment