Nutrient removal from a stormwater detention pond using duckweed

M. Perniel, R. Ruan, B. Martinez

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Different species of Lemnaceae (duckweed) were grown in pure and mixed cultures to examine nutrient absorption capacity in a stormwater detention pond. The duckweed was grown in 0.4 m2 equilateral triangular floating Pens in a stormwater retention pond, which is part of a constructed wetland in Roseville, Minnesota. Both biomass productivity and nutrient (phosphorus and nitrogen) removal were measured for each species. It was concluded that: (1) monoculture Lemna minor consistently removed the largest amount of ammonia from stormwater and had the largest biomass density; and (2) a polyculture of Lemna minor and Spirodela polyrhiza was the most stable nutrient sink and removed the largest amount of phosphorus from stormwater in eight weeks.

Original languageEnglish (US)
Pages (from-to)605-609
Number of pages5
JournalApplied Engineering in Agriculture
Volume14
Issue number6
StatePublished - Nov 1 1998

Keywords

  • Detention pond
  • Duckweed
  • Lemna
  • Lemnaceae
  • Nutrient removal
  • Phosphorus
  • Spirodela
  • Stormwater management

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