PMID: 11317907Apr 25, 2001Paper

Evaluation of the fern Azolla for growth, nitrogen and phosphorus removal from wastewater

Water Research
Cinzia ForniM G Caiola

Abstract

Water fern (Azolla filiculoides Lam.) has been assessed for nitrogen and phosphorus removal in outdoor experiments comparing sewage water (S) from an experimental aquaculture plant, well water (W) and mineral growth medium Hoagland (H). The experiments were undertaken during the spring and the summer. The yield of fern biomass and nitrogenase activity was higher in H than in W and S waters. The enzyme activity had a decreasing trend with significant differences (p < 0.05) in the three waters. Peroxidase (POD) activity in April decreased with significative differences in W and S waters (p < 0.05). The electrical conductivity and the concentrations of NO3- in the three waters decreased significantly (p < 0.05). The highest removal of nitrate from the media was obtained in July. In S water, NO2- concentration decreased, while it increased in W water. PO(4)3- concentration was very low in W and S waters and decreased in H medium. The results obtained confirm the ability of the fern to grow in sewage water.

Citations

Aug 22, 2002·Water Research·Cinzia ForniLuciana Migliore
Apr 4, 2014·Journal of Environmental Health Science & Engineering·Mohammad Ali ZazouliDavoud Balarak
Aug 1, 2014·Journal of Environmental Sciences (China)·Ping HanBee-Lian Ong
May 11, 2005·Ecotoxicology and Environmental Safety·Mamta Awasthi, Lal Chand Rai
Oct 26, 2016·Biotechnology for Biofuels·Ana F MirandaAidyn Mouradov
Mar 26, 2011·Brazilian Journal of Biology = Revista Brasleira De Biologia·J J Toledo, J Penha
Mar 31, 2015·Journal of Environmental Health Science & Engineering·Alireza MesdaghiniaMahdi Hadi

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