Design of Mobile, Water Recirculation Container for ...

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GRØN DYST 2014 Technical University of Denmark

Design of Mobile, Water Recirculation Container for Live fish Transportation
Paper
Author:J.P.H. Kinyage (DTU Aqua, National Institute of Natural Resources, Technical University of Denmark, Denmark)
Date: 2014-06-27     Track: Main     Session: 1

Transportation of live fish requires continuous regular monitoring of good water quality status on parameters supporting survival such as O2, and the one that impairs life such CO2, NH4, NO2 and NO3, the by-products of fish respiration which continuous supply of fresh O2 or replacement of fresh water leading to discharge of deteriorated water which can be lethal to other organisms as it is to fish. In this Project, Application membrane filtration as advanced separation technology and water pump are used to design mobile container fitted with water recirculation system that will allow in-line treatment of waste water to reusable water from and to the fish container. A pump with a capacity of at least a head of 50 kPa is used to transport water from the tank to the treatment chamber in which a hydrophobic microfilter (MF) membrane polymer with 0.5μm pore size is fixed ahead of biological digester with bioelements that help to trap organic wastes, the driving force of separation is pressure difference outside and inside membrane and concentration difference between waste water and reusable water. This container will be environmentally friendly and sustainable means of transportation of aquatic organisms where CO2, NH4, NO2 and NO3 are treated within the system resulting to reusable water for long term use with zero discharge.