Aquaculture Water Treatment Calculations
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Iowa State University Extension and Outreach helps carry Iowa State’s land-grant mission beyond campus, to be the university that best serves the citizens of Iowa. With Iowa State University, we embrace the land-grant philosophy of:
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System Volume – Knowing the volume of water in the recirculating system is important to calculating water exchange requirements, applications of therapeutants for the fish, and the amount of chemical disinfectants required for sterilization. The calculation of the volume of a given system is a function of the geometry of the culture tank, filters, and plumbing. The portion of the system to be treated also depends on the goals Aquaculture Water Treatment Calculationsof the farmer; for instance, a bath treatment will likely only be done in the culture tank with the water flow shut off, and should not include the full volume of the system. Figure 1 (page 2) shows some formulas for calculating the volume of some commonly used tank shapes in recirculating aquaculture. A useful tool for calculating system volume can be found at www.calculator.net/volume-calculator.html.