Auxin treatment of wetland and non-wetland plant species to enhance their phytoremediation efficiency to treat municipal wastewater

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TitreAuxin treatment of wetland and non-wetland plant species to enhance their phytoremediation efficiency to treat municipal wastewater
Type de publicationJournal Article
Year of Publication2015
AuteursTandon S.A, Kumar R., Parsana S.
JournalJOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH
Volume74
Pagination702-707
Date PublishedDEC
Type of ArticleArticle
ISSN0022-4456
Mots-clésconstructed wetland, natural auxin, support media, synthetic auxins
Résumé

Auxin treatment of wetland and non-wetland plant species for increasing their phytoremediation efficiency to treat municipal wastewater was studied. The mesocosms were set up with gravels and polyethylene balls as the inert support media. The wetland plant species (Alternanthera philoxeroides, Eichhornia crassipes) and non-wetland species (Chrysopogon zizanioides, Festuca arundinaceae) were treated with six concentrations (0.5, 1.0, 2.0, 4.0, 8.0 and 10.0 mg/L) of natural auxins (Indole-3-acetic acid, Indole-3-butyric acid) and a synthetic auxin (1-Naphathaleneacetic acid). The optimum auxin concentration was found to be 2 mg/L of IAA, 1mg/L of IAA and 1mg/L of IBA for Alternanthera philoxeroides, Festuca arundinaceae and Chrysopogon zizanioides, respectively. The removal efficiencies of auxin treated Alternanthera philoxeroides, Festuca arundinaceae and Chrysopogon zizanioides for BOD, Nitrate and Phosphate was 12-15, 30-44 and 29-42 % more than the untreated plants.