Direct digital control of environmentally isolated seafood manufacturing systems

Autor: J. Richard Booth, Phaneendra B. Kondapi
Rok vydání: 1996
Předmět:
Zdroj: Journal of Materials Processing Technology. 61:27-33
ISSN: 0924-0136
DOI: 10.1016/0924-0136(96)02461-2
Popis: The development of seafood (shrimp) manufacture in the United States is changing toward increased isolation of the growing-out facilities. Such a change minimizes a) overhead for discharge permits and pollution abatement costs, b) crop loss by disease and toxic substances from the environment c) and breaks the seashore umbilical cord. Isolation will require increased capital and operating expense. The increased costs must be balanced by reducing operating costs. Three large cost-based factors are operating labor, ration cost and energy cost for pumping and environmental control. A portion of the labor and ration costs can be reduced by using direct digital control the environmental and feeding subsystems. The shrimp ration must be optimized to provide the growing shrimp with the correct balance of nutrients at their current stage in life. It is necessary to deliver the ration in the correct amount to maintain optimum growth. These criteria require a detailed growth model that relates essential nutritional requirements to size of shrimp. The size and number of the shrimp may be determined by video remote sensing. The dissolved oxygen, salinity and pH are monitored and controlled at levels which will not inhibit growth nor inefficiently utilize ration nutrients. Critical metabolites are monitored and removed from the shrimp growout environment to a photosynthetic water recycle unit.
Databáze: OpenAIRE
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