Many water-based processes can fall victim to persistent problems with microbial contamination, often leading to bio-fouling of the filtration system.
Many water-based processes can fall victim to persistent problems with microbial contamination, often leading to biofouling of the filtration system. This in turn can cause disruptive problems such as filter blockages, increased differential pressure and release of concentrated microbial contamination, all of which can cause a total breakdown of your production line.
Unfortunately, this is a commonplace problem seen throughout many sectors such as marine, oil and gas, commercial buildings and fuel processes to name a few. In fact, any water-based filtration system can suffer from biofouling, so it’s important to know what it is and how best to protect your systems from it.
Biofouling can be significantly reduced with the help of Amazon Filters. We have developed a brand-new technology to help the industry tackle biofouling at the root of the problem. KilBac is our new range of filter products that include fibres which are compounded with various antimicrobial technologies, therefore inhibiting the growth of bacteria and algae on your water systems.
This new technology is available as a variant of our SupaSpun and SupaGard products; the first two ranges are based on silver/zinc (Ag/Zn) and silver/copper (Ag/Cu).
The KilBac fibres take a trimodal approach to prevent bacteria/algal growth:
These three components work together to eliminate the possibility of bacterial build-up. Our anti-microbial particles are around 5 micron in size, meaning there are no more health and safety concerns over nanoparticles entering the water that passes through your system. By maximising the surface area of these particles, we are increasing the efficiency of their anti-microbial properties by exposing more of the filtered water to them.
Depending on the application, different active elements are matched for optimum results. For anti-microbial applications, a combination of silver and zinc is used, whereas silver and copper are used together for anti-algal applications. These combinations work synergistically and significantly increase the effectiveness of supressing growth on the filter.
Our micron sized zeolite particles are manufactured differently to other anti-microbial particles; we take care to maximise their effectiveness as they are being made. Our silver and copper or silver and zinc particles are compounded to the base polymer and controlled during the manufacturing process to maintain a large surface area of these active ingredients providing greater exposure to the water being filtered. Our KilBac filters also come in a blue/green hue making them easily distinguishable.
Both the SupaSpun and SupaGard KilBac filters are applicable to:
Amazon Filters have conducted many internal studies assessing the efficiency of treatments on a variety of micro-organisms. The ability of the filters to control bacteria growth was evaluated using the ASTM E2149 test method on the SupaSpun KilBac range. For this test, a sample of the filter was placed in a flask containing water and bacteria (pseudomonas aeruginosa). Over the duration of 24 hours, the flask was agitated to replicate intermittent water flow through the KilBac filters. The results are as follows:
KilBac filters can also help with bioburden control in recirculation systems. We conducted testing in triplicate on a recirculating system with mains water running at 5l/min/10”. The results are as follows:
Not only do our fibres eliminate biofouling and overall bioburden in recirculation processes, they prevent biofilm build-up on single pass systems extending equipment lifetime and reducing overall operating costs.