Mathematical modelling of nutrient balance of a goldfish (Carassius auratus Linn.) recirculating aquaculture system (GRAS) (doi:10.4136/ambi-agua.134)

  • Mohd Tanveer Agricultural & Food Engineering Department, IIT Kharagpur, India
  • Sudeep Puthravilakom Sadasivan Nair Agricultural & Food Engineering Department, IIT Kharagpur, India
  • Sanjib Moulick Agricultural & Food Engineering Department, IIT Kharagpur, India
  • Chanchal Kumar Mukherjee Agricultural & Food Engineering Department, IIT Kharagpur, India
Palabras clave: Goldfish, recirculating aquaculture system, plug flow reactor

Resumen

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.

Biografía del autor/a

Mohd Tanveer, Agricultural & Food Engineering Department, IIT Kharagpur, India
Address: AGFE Department IIT Kharagpur Kharagpur-721302 West Bengal (India) Rank:Research Scholar
Sudeep Puthravilakom Sadasivan Nair, Agricultural & Food Engineering Department, IIT Kharagpur, India
Address: AGFE Department IIT Kharagpur Kharagpur-721302 West Bengal (India) Rank:Project Fellow
Sanjib Moulick, Agricultural & Food Engineering Department, IIT Kharagpur, India
Address: AGFE Department IIT Kharagpur Kharagpur-721302 West Bengal (India) Rank:Lecturer (Senior Scale)
Chanchal Kumar Mukherjee, Agricultural & Food Engineering Department, IIT Kharagpur, India
Address: AGFE Department IIT Kharagpur Kharagpur-721302 West Bengal (India) Rank:Assistant Professor
Publicado
25/08/2010
Sección
Articulos