The most important factor of water quality is how much oxygen is available. Pentair Aquatic Eco-Systems provides solutions to maintain optimal dissolved oxygen levels for a healthy environment in which your fish can thrive.
Pentair Aquatic Eco-Systems has scientific and engineering experts to help solve your oxygenation challenges.
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How Our Products Can Help
Aquaculture is conducted in water containing less than .0001 percent oxygen (10 mg/L). Temperature, altitude and surface area of tanks or ponds all affect dissolved oxygen levels. So does the number of fish whose respiration and waste consume oxygen. So does the decomposition of other organic materials. We build specialized equipment to add oxygen that best meets your operation’s unique needs.
Emergency Back-up and Farms Without Electric Power
An ideal farming location will have a reliable source of electricity to run recirculating aquaculture systems. (RAS). That’s not always the case; even when electricity is available, successful farmers provide a back-up power source for emergencies. In areas without electrical service, RAS can be powered by gasoline or diesel engines and hydropower. Our engineers and technicians can design alternative power solutions to enable you to operate your aquaculture business regardless of location.
Sweetwater® Remote-Drive Regenerative Blowers
They are perfect for use in electrical emergencies or anywhere electric power is not available. Remote-drive blowers enable the user to vary the amount of oxygen added to water by simply changing engine speed or the pulley size.Learn more
Oxygenating Large Scale Commercial Tanks
Some water oxygenation technologies combine use of an oxygen-rich environment with an increase in pressure. By increasing the pressure, the total amount of oxygen that can be dissolved is increased even further. This is the principal used in oxygen cones, oxygen saturators and pressure columns.
Cones and saturators suspend small oxygen bubbles in the flowing water, using the vessel geometry to prevent bubbles from carrying out of the vessel before the oxygen is absorbed. Pressure packed columns break the water flow into thin films as it passes through a vessel filled with an oxygen-rich gas.
Point Four™ Pressurized Column
Ideal for commercial recirculating aquaculture systems, our pressurized column is a high-performance gas injection system with low operating costs. Water enters through the top and as it cascades down through chambers in the column, the water absorbs oxygen entering from the side. Oxygenated water leaves through the bottom and is returned to your fish tanks.Learn more
What is Needed to Get Right Amount of Oxygen
At a given pressure, water can only hold a certain amount of gas. An oxygen-rich environment causes the saturation concentration of oxygen to increase while the saturation concentrations of all other gases (such as nitrogen, argon and carbon dioxide) decrease proportionally. As a result, as oxygen transfers into the water, these other gases transfer out. This is the principal used in an oxygenation concentration system. Within it, small streams of water rain through low-pressure chambers filled with oxygen rich gas.
PCI Deployable Oxygen Concentration Systems
Our proprietary reversible blower Vacuum Swing Absorption technology uses half the power of equivalent systems along with a significant reduction in footprint. This is a turnkey integrated solution that eliminates the need to size and source air compressors, dryer systems and product or feed buffer tanks.Learn more
Increase Yield, Control Costs of Expensive Gases
Fine bubble diffusers can be used to deliver bubbles of oxygen directly to each culture tank. As the oxygen bubbles rise, they are absorbed.
Although efficiency increases with tank depth, diffuser efficiency is low relative to other oxygenation equipment because any oxygen in bubbles that reach the water surface is lost to the air. However, diffusers can be incorporated into an effective emergency back up oxygenation system as they do not rely on water flow to deliver the oxygen to the fish.
Point Four™ Micro Bubble Diffuser
Micro Bubble Diffusers use an ultra-fine-pore ceramic plate to produce a cloud of bubbles of approximately 100 to 500 microns. These diffusers are far superior to air stones, porous hose or membrane-type designs. The flat plate ensures uniform bubbles across the entire surface and achieves an absorption rate in excess of 80 percent, depending on depth and flow rate.Learn more
There is Only One Sure Way to Know Oxygen Level - Check It
Successful fish farmers measure dissolved oxygen levels. There’s no accurate method except with oxygen meters or test kits. Water temperature, altitude and salinity all can affect oxygen levels, so it’s important to select test equipment that can measure and compensate for these factors to provide you with reliable test results.
Dissolved Oxygen Meter Kit
Our meter kit measures dissolved oxygen (D.O.) and its programming and functionality are easy to follow. The meter simultaneously displays D.O. (in ppm or mg/L), temperature readings (in ºC or ºF) and the date, and automatically adjusts for salinity and altitude.Learn more
Clogging Problems? Skip the Filters
Diffusers or so-called air stones can be an inexpensive solution to provide oxygen, but they can be expensive to maintain. Their large surfaces provide areas for algae and solid wastes to collect which can lead to clogging. Some diffusers are installed with filtering equipment and need to be cleaned regularly to maintain their functionality, especially when they are installed as an emergency or back-up source of oxygenation.
Sweetwater® Air Diffusers
Sweetwater diffusers are the highest-quality ceramic-type air diffusers on the market. They're machined from a solid block of glass-bonded silica. Because dust and dirt particles up to 30 microns in size can pass right through these diffusers, there’s no need for expensive air filters. They produce a uniform medium/fine bubble and are very resistant to clogging.Learn more
Our scientists and engineers share their ideas and advice in short articles, how-to fact sheets and longer white papers. You can download their expert insights about water oxygenation here:
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HE Group Oxygen Cones
Sweetwater cones are designed to optimize the saturation of gases in water, and gas transfer efficiencies of up to 100 percent are possible. A Sweetwater cone operating at only 10 psi can deliver water with a dissolved oxygen concentration above 25 mg/L. Sweetwater cones may be operated at a pressure of up to 21 psi. Please contact a Pentair Aquatic Eco-Systems technician for assistance with sizing and complete skid systems.