At Pure Aquatics in Port Macquarie, we supply protein fractionators throughout Australia and worldwide. RK2 Systems protein fractionators (also called foam fractionators or protein skimmers) are a proven technology that is applied to remove suspended and dissolved wastes that other conventional filtration devices cannot remove. Foam fractionation is the removal of proteins, dissolved organics and total suspended solids from water. Unlike other forms of mechanical filtration that only trap debris and waste, foam fractionation actually removes or strips it from the water.Â
This process is carried out inside a foam fractionator by injecting air in the form of tiny bubbles through a column of water creating an air-to-water interface. In general, the smaller the bubbles, the more effective the foam fractionation process is. This is because smaller bubbles have more surface area while occupying the same volume of water as larger bubbles. This mixture of air and water is injected towards the bottom of the foam fractionator and allowed to travel up through the incoming organic-laden water.Â
Due to the natural charges of these organic molecules, they are either repelled or attracted to the air/water interface. These molecules can be described as hydrophobic. Large numbers of small bubbles present an enormous air/water interface for molecules to collect on the bubble surface (the air/water interface). This process continues until the bubbles increase near the top of the water column inside the foam fractionator. At the top of the water column, the water becomes denser and begins to drain and create the foam that will carry the organic molecules to the waste collection cup and export them from the water.Â
Whilst removing waste, RK2 Systems protein fractionators simultaneously oxygenate the water, degauss CO2 and can act as an injection point for ozone.Â
The four types include:
RK2 AC FOAM FRACTIONATORS
Meet the newest models of RK2’s commercial foam fractionator line-up! Our AC series is designed for low-flow rate applications while keeping the performance and quality that larger RK2 models have become known for. With RK2’s nearly 30 years of engineering experience combined with extensive R&D, we are proud to offer a truly commercial-grade foam fractionator for aquarium professionals, home hobbyists and aquaculture professionals alike. These units are built to withstand the most demanding applications. We utilise a design that is based on proven science and volume metrics to bring you the best-performing fractionators available today.
RK2 SALTWATER FOAM FRACTIONATORS
RK2 saltwater protein fractionators are filtration devices that remove suspended particulates, dissolved organics, proteins and tints. At the same time, protein fractionation lowers bacteria and pathogen concentrations, while saturating the water with oxygen. Traditional water filtration systems, (i.e: pressurised sand filters, bead filters and cartridge filters) remove particulates but are ineffective against dissolved wastes and act as breeding grounds for bacteria and pathogens.
RK2 FRESHWATER FOAM FRACTIONATORS
RK2 freshwater foam fractionators are the original and still the most effective fractionator for protein and TSS removal in freshwater. In freshwater, the process of protein fractionation is used widely in the wastewater treatment industry (referred to as dissolved air flotation). Freshwater foam fractionators for aquaculture applications have been pioneered and refined by RK2 with their development of the RK2 freshwater foam fractionators. While the bubbles are larger in freshwater than in saltwater, RK2 has designed and refined its designs to achieve the maximum effectiveness of protein fractionators in freshwater. The addition of ozone into a freshwater fractionator adds a vector for ozone to be introduced. It also helps to stabilise the protein fractionator and oxidise and flocculate waste into particles that are more easily removed by the protein fractionation process.
RK2 XFLO PROTEIN SKIMMERS
The most important things to consider when purchasing a protein skimmer are performance, reliability and durability. The XFLO aquarium protein skimmer combines all the above to deliver one of the most innovative protein skimmers available today! RK2 set the bar for protein skimmers in the public aquarium and aquaculture industries and has been the industry standard for over 25 years. Now you too can use what the professionals use!