The beauty of process design lies in the simplicity. Our core tehnology is AxoPur® whereby dirty waters are separated into clean water and a small amount of solid floc. The driving force is electricity. The process leaves no loads of hard-to-handle sludge, no concentrate flow to take care of, but water that is often cleaner than after using other technologies. Even emulsified oils, fats and grease are removed with extreme efficiency – just like any kind of living matter. And it all takes place in just a short moment.
Electricity is used to liberate metal ion coagulants from a sacrificing electrode. Both the electric field and the metal ions assist in the cleaning process. A small amount of hydrogen gas is also released and benefitted from when the contaminants are lifted to the surface in a flotation process and then separated from the water.
The consumables in the process thus are (by decreasing order of importance):
The contaminants are separated from the water not in the form of a concentrate flow or a bulky sludge – but in the form of a minimal amount of a floc. This floc has a particular feature in its ability to largely self-drain and is suitable for mechanical pressing in order to reach a high solids content.
We advocate the use of green electricity to power our technologies for the sake of a sustainable future.
The beauty of our process lies in its simplicity!
Dr. Martin Ragnar
AxoPur is our core product based on the principles for electrocoagulation. Using AxoPur most contaminants could be removed. However, for some special cases additional technologies are also required. We gather those under the tradename AxoPlus.
An AxoPur unit consists of four elements: A power source, a reactor module, flotation (or in a few cases sedimentation) and a control system. The set-up is modular meaning that the reactors are of one, standardised type fitting into any kind of AxoPur unit – the difference only being the numbers. The modular design of the model program has been designed in order to ensure both cost-effectiveness and flexibility for our customers. The options for you as a customer in selecting the appropriate system includes:
Control system: We offer three different solutions – full automation using PLC ready for integration in a supervisory control system, semi automation using wire-less control from a PC unit and manual control. Full automation is suitable for units used in continuous operation in a process industry. Semi automation is suitable for units used regularly, e.g. in a plant with daytime work mainly. Manual control is suitable for irregular use when smaller amounts of wastewater are treated batch-wise.
Reactor module: The reactor module decides the maximum flow through the unit. This is governed both by the amount of wastewater as such, but also by the choice of operation (as discussed in relation to the control system)
AxoPur units are referred to by model names, using the initial letter U followed by a number denoting the flow rate, an x and a number denoting the flotation unit and finishing with a letter defining the control system (F=full automat, S=semi automation, M=manual), e.g. AxoPur® U2x2M.
Currently the practical upper limit of our offerings ends at flow rates of around 50 m³/h. Downwards there is no clear limit as small flows could be handled with a manually controlled unit adapted to needs.
We are a system provider solving your problems by means of:
Doing business with us usually precedes through the following steps:
Every water is uniques in its composition and thereby in its exact behaviour in a process. Accordingly, testing of your water is an integral part of our business with you. We have test equipment both in bench-scale (flow rate capacity 50 l/h) and in pilot scale (flow rate capacity 500–2000 l/h), both of which are portable/mobile. For testing of waters believed to be stable over time testing in our facilities in Landvetter/Helsinki is adviced, whereas waters e.g. with high biological activity usually should be tested on-site. Bench-scale testing provides a fair answer to the applicabilaty of our technology to your water. Pilot-scale testing also provides data necessary for system design in your case. We charge cost-coverage for testing – costs that could be credited upon a purchase.
Our core technology, AxoPur®, is based on the principles for electrocoagulation – an invention of the early 20th century that required a century to mature and become relevant. It is easy to demonstrate the basic features of electrocoagulation in the laboratory. The challenge for its commercial utilisation instead lies in factors like making the process continuous, providing a robust design and scaling up the process.
Metals and oil
Quite often (transition/heavy) metal ions end up in a flow where also oil/fat/grease prevails. This could happen in many industries, e.g. in a coating industry (coating of paper/board or coating/plating of metals), metal working industry, in a car/bus/train wash, as storm-water at harbours or industrieal sites or in a tannery. The combination of metals and oil is an easy task for us to remove, whereas few competing technologies prevail.
Contaminants in salt water
Sometimes there is a desire to remove everything but salt from a salt water flow. This could typically be the case in the farming of salt-water fish, but also in the case of the purification of dissolved ash from a furnace or in the cleaning of an electrolyte. We could selectively remove most impurities from a salt water, leaving the salt in the flow – something few other technologies easily can do.
Hazardous wastewaters are often made up of a large number of more or less well-known contaminants. In order to clean this safely, technologies with a particularly broad spectrum cleaning are particularly suitable. There are companies specializing in the safe handling of hazardous wastewaters, but such waters also occur e.g. as leachate from dumps. Our technology is one of few suited for this advanced total cleaning.
Generally speaking our technology easily and efficiently removes suspended solids, transition metal ions, emulsified/disperesed oil/fat/grease, phosphorus and most dissolved substances of some size. This opens the door to many more applications than the above, e.g. within food processing (e.g. slaughterhouses – usually phosphorus, fat, protein and blood), chemical industry, oil processing, (bio-)fuel manufacturing/handling, algae harvesting and processing, fertilizer upgrading (selective removal of cadmium), phosphorus recycling and many more.
Emerging pollutants is a notion to cover contaminants commonly not measured in wastewater flows but at the same time being of an increasing concern. Here we find substances like PFAS, microplastics, medical residues and others. Our technology proves capable of removing many of the contaminants found in this group as well, although thorough testing is always necessary required here and analytical methods to evaluate the removal is sometimes a challenge.