Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)

In the present study, a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS) has been developed. The GRAS consisted of a culture tank, a screen filter and a foam fractionator for removal of particulate and dissolved solids and a trickling filter for conversion of ammonium- and...

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Main Authors: Sudeep Puthravilakom Sadasivan Nair, Sanjib Moulick, Chanchal Kumar Mukherjee, Mohd Tanveer
Format: Article
Language:English
Published: Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) 2010-08-01
Series:Revista Ambiente & Água
Subjects:
Online Access:http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/317
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author Sudeep Puthravilakom Sadasivan Nair
Sanjib Moulick
Chanchal Kumar Mukherjee
Mohd Tanveer
author_facet Sudeep Puthravilakom Sadasivan Nair
Sanjib Moulick
Chanchal Kumar Mukherjee
Mohd Tanveer
author_sort Sudeep Puthravilakom Sadasivan Nair
collection DOAJ
description In the present study, a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS) has been developed. The GRAS consisted of a culture tank, a screen filter and a foam fractionator for removal of particulate and dissolved solids and a trickling filter for conversion of ammonium- and nitrite-nitrogen to relatively harmless nitrate-nitrogen. The culture of goldfish at a stocking density of 1.08 kg/m3 was continued for a period of two and half months. Based on mass balance analysis of ammonium- and nitrate-nitrogen and assuming the trickling filter to be a plug flow reactor, a model was formulated to determine the necessary recirculation flow rate at different times of culture for maintaining the major nutrients, viz., ammonium- and nitrate-nitrogen below their permissible limits. The model was calibrated and validated using the real time data obtained from the experimental run. The high values of coefficient of determination and low values of root mean square error show the effectiveness of the model.
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spelling doaj.art-44063aea878b4e8bb4be4a4f1c8033c92022-12-21T19:27:44ZengInstituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)Revista Ambiente & Água1980-993X2010-08-0152303910.4136/ambi-agua.317Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)Sudeep Puthravilakom Sadasivan NairSanjib MoulickChanchal Kumar MukherjeeMohd TanveerIn the present study, a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS) has been developed. The GRAS consisted of a culture tank, a screen filter and a foam fractionator for removal of particulate and dissolved solids and a trickling filter for conversion of ammonium- and nitrite-nitrogen to relatively harmless nitrate-nitrogen. The culture of goldfish at a stocking density of 1.08 kg/m3 was continued for a period of two and half months. Based on mass balance analysis of ammonium- and nitrate-nitrogen and assuming the trickling filter to be a plug flow reactor, a model was formulated to determine the necessary recirculation flow rate at different times of culture for maintaining the major nutrients, viz., ammonium- and nitrate-nitrogen below their permissible limits. The model was calibrated and validated using the real time data obtained from the experimental run. The high values of coefficient of determination and low values of root mean square error show the effectiveness of the model.http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/317Goldfishrecirculating aquaculture systemplug flow reactor
spellingShingle Sudeep Puthravilakom Sadasivan Nair
Sanjib Moulick
Chanchal Kumar Mukherjee
Mohd Tanveer
Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)
Revista Ambiente & Água
Goldfish
recirculating aquaculture system
plug flow reactor
title Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)
title_full Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)
title_fullStr Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)
title_full_unstemmed Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)
title_short Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS)
title_sort mathematical modelling of nutrient balance of a goldfish carassius auratus linn recirculating aquaculture system gras
topic Goldfish
recirculating aquaculture system
plug flow reactor
url http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/317
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