NDLI: Removal of inorganic nitrogen sources from water by the algal biofilm of the aerial microalga Trentepohlia aurea

Content Provider	Springer Nature Link
Author	Abe, Katsuya Matsumura, Ikue Imamaki, Atsue Hira, Morio
Copyright Year	2003
Abstract	Removal of inorganic nitrogen sources by cells of the aerial microalga Trentepohlia aurea grown on the surface of substrate, such as filter paper, has been investigated in a batch system. When the alga grew on the paper dampened with medium, it actively ingested inorganic nitrogenous compounds in the medium. Immobilized cells on the filter papers were called ‘algal biofilm’ in this study. When the algal biofilms were soaked in modified Bold's Basal medium (using 1 g NH$_{4}$Cl l$^{−1}$ as a N source), the removal rate was 4.25 mg ammonium-N l$^{−1}$ day$^{−1}$ in 40 days. In modified medium with added 26 mg nitrite-N, the removal rate of the total inorganic N ion by the biofilms reached 5.11 mg N l$^{−1}$ day$^{−1}$. This removal rate of total N ion was higher than that in the medium by addition of 26 mg nitrate-N. In addition, we tried to examine simultaneous removal of ammonium, nitrate, and nitrite ions and growth inhibition of cyanobacteria in the medium by using the algal biofilms. Consequently, it was demonstrated that the algal biofilms of T. aurea could be utilized as a biofunctional material for the purification of wastewater.
Starting Page	325
Ending Page	328
Page Count	4
File Format	PDF
ISSN	09593993
Journal	World Journal of Microbiology and Biotechnology
Volume Number	19
Issue Number	3
e-ISSN	15730972
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2003-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chemistry/Food Science Biochemistry Microbiology Animal Anatomy Morphology Histology Environmental Biotechnology
Content Type	Text
Resource Type	Article
Subject	Physiology Medicine Applied Microbiology and Biotechnology Biotechnology

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