DSpace About DSpace Software

Dyuthi @ CUSAT >
Environmental Studies >
Faculty >
Bright Singh I S >

Please use this identifier to cite or link to this item: http://purl.org/purl/4043

Title: Activated packed bed bioreactor for rapid nitrification in brackish water hatchery systems
Authors: Bright Singh, I S
Cini, Achuthan
Rejish Kumar, V J
Manju, N J
Rosamma, Philip
Keywords: Nitrifying bioreactors
Nitrifying consortia
Closed system shrimp hatchery
Issue Date: 28-Nov-2008
Publisher: Springer
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 b 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.
Description: J Ind Microbiol Biotechnol (2009) 36:355–365 DOI 10.1007/s10295-008-0504-9
URI: http://dyuthi.cusat.ac.in/purl/4043
Appears in Collections:Bright Singh I S

Files in This Item:

File Description SizeFormat
Activated packed bed bioreactor for rapid nitrification in brackish water hatchery systems.pdfpdf388.65 kBAdobe PDFView/Open
View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback