|Dr. Wastewater's Duckweed Application Page
by Louis Landesman (firstname.lastname@example.org)
|Duckweed refers to a family of floating aquatic plants with the scientific name Lemnaceae. The Lemnaceae are monocots (like grasses and palms) and
are divided into 5 genera: Lemna, Spirodela, Wolffia, Landoltia and Wolffiella. Of these 5 genera Spirodela is the largest and Wolffiella is the smallest. Duckweed normally reproduces by budding (a form of asexual reproduction) although it is capable of sexual reproduction as well. Duckweed may be the most promising plant for the twenty-first century for the following reasons:
Duckweed produces more protein per square meter than soybeans.
Duckweed can be used to feed fish, shrimp, poultry and cattle.
Duckweed can purify and concentrate nutrients from wastewater (sewage effluent).
Duckweed provides food for wildlife, especially waterfowl.
My research with duckweed focused
on 2 questions:
1. Competition between 3 duckweed genera (Lemna, Wolffia and Landoltia).
2. The effect of grazing on the
outcome of this competition.
This research was done at the:
University of Louisiana,
North Carolina State University,
Raleigh, North Carolina
To access my dissertation on the use of duckweed in wastewater
treatment click here (part 1) and
here (part 2).
|Important Duckweed Links:|
|The Charms of Duckweed|
|Duckweed as wildlife habitat|
|Modeling duckweed growth|
|Wayne Armstrong's Lemnaceae|
|Integrated agricultural systems|
|Lemna Technologies, Inc.|
|Treatment pond biota|
|Livestock in rural research and development|
|Duckweed as fish and shrimp feed|
|Lemna for nutrient recovery|
|Lemna Technologies Treatment Plant, Sunset, Louisiana|
|Harvesting duckweed (Lemna species),