Modeling effects of U-tube aeration in recirculating aquaculture systems

Cost effective oxygenation equipment design and operation in high density recirculating aquaculture systems (RAS) requires consideration of the effects of RAS component design, water quality, and biological processes on oxygen transfer requirements. A computer model was developed to simulate multi-component gas transfer and biological respiration in a pilot scale recirculating aquaculture system employing an u-tube aerator. Gas transfer and/or biological respiration are modeled for all system components; production tank, multi-tube clarifier, rotating biological contactor and the u-tube. The calibrated model predicted equilibrium oxygen concentrations in the production tank to within ± 1 mg/L in the validation tests. The model was then used to investigate techniques to reduce oxygen transfer costs associated with aquaculture in the RAS located at the Virginia Tech Aquaculture Research Facility.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Agricultural Engineering

Department dc:contributor.department

Agricultural Engineering

Grantor dc:publisher

Virginia Tech

Year dc:date.issued

1991

Author dc:creator

• Wood, Luther G.

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en

Dc Identifier Other

etd-10312009-020150

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/45350