NDLI: Activated packed bed bioreactor for rapid nitrification in brackish water hatchery systems

Content Provider	Springer Nature Link
Author	Rejish Kumar, V. J. Achuthan, Cini Manju, N. J. Philip, Rosamma Bright Singh, I. S.
Copyright Year	2008
Abstract	A packed bed bioreactor (PBBR) was developed for rapid establishment of nitrification in brackish water hatchery systems in the tropics. The reactors were activated by immobilizing ammonia-oxidizing (AMONPCU-1) and nitrite-oxidizing (NIONPCU-1) bacterial consortia on polystyrene and low-density polyethylene beads, respectively. Fluorescence in situ hybridization demonstrated the presence of autotrophic nitrifiers belong to Nitrosococcus mobilis, lineage of β ammonia oxidizers and nitrite oxidizer Nitrobacter sp. in the consortia. The activated reactors upon integration to the hatchery system resulted in significant ammonia removal (P < 0.01) culminating to its undetectable levels. Consequently, a significantly higher percent survival of larvae was observed in the larval production systems. With spent water the reactors could establish nitrification with high percentage removal of ammonia (78%), nitrite (79%) and BOD (56%) within 7 days of initiation of the process. PBBR is configured in such a way to minimize the energy requirements for continuous operation by limiting the energy inputs to a single stage pumping of water and aeration to the aeration cells. The PBBR shall enable hatchery systems to operate under closed recirculating mode and pave the way for better water management in the aquaculture industry.
Starting Page	355
Ending Page	365
Page Count	11
File Format	PDF
ISSN	13675435
Journal	Journal of Industrial Microbiology and Biotechnology
Volume Number	36
Issue Number	3
e-ISSN	14765535
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-11-28
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Nitrifying bioreactors Nitrifying consortia Immobilization Nitrification Closed system shrimp hatchery Microbiology Bioinformatics Biotechnology Genetic Engineering Inorganic Chemistry Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology

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