Our process is as simple as it is brilliant: We use electricity to separate contaminants from water! And we do it rapidly so that the heat of the water is maintained and the space requirement is minimized. While passing through the reactor the water flow is subjected to a strong electrical field, thus destabilising dispersed contaminants.
The electricity liberates metal ion coagulants from the sacrificing electrode. Coagulated substance is flocculated by flocculating aids. At the same time as the coagulants are liberated hydrogen gas is formed. This provides flotation action and is used for the separation of the floto-complex flocs from the water flow.
The consumables in the process thus are (by order of importance):
Our technology produces cleaned water and a floc with very low residual water content. This is in contrast to most other water treatment technologies where you tend to end up with a concentrate of polluted water that requires further handling. Wherever and whenever green electricity is at hand this should be the natural choice for powering our technology.
Dr. Martin Ragnar
Our core technology is highly flexible and each application places specific demands on design and operating settings. We provide a complete solution, from pre-treatment to polishing and floc handling. Our partnership process consists of four steps and is designed for optimum effectiveness. The final result is a process configured to meet the customer’s needs in the best way possible.
Together with the customer, we map the existing process and identify opportunities.
Scoping & Screening
We conduct rapid testing of real effluent waters in our facilities in Landvetter with the aim to validate that the technology is suitable and that agreed targets can be met.
On-site testing in order to determine operating settings and design capacity requirements.
We design, procure and assemble the equipment, and we deliver it to customer’s site for installation and commissioning.
The core of our technology is our patented coaxial electrochemical continuous reactor. With this we can clean water, dewater a suspension, break emulsions and dispersions or separate a valuable component for reuse – or separate toxic contaminants for their safe disposal. Other modes of operation include chemical precipitation, reduction, oxidation and ion exchange. The first mode of operation is catalytic to its principle, whereas the others are stoichiometric and thereby requiring more power. The design of our water purification units has been developed in close co-operation with Consat Engineering AB.
Our technology is valuable in a large number of different cases. Below a few common cases are given as examples.
Cleaning the main waste water flow going to the recipient is of course always an option. However, a pulp mill or a paper mill have vast numbers of process water flows where less or more heavily contaminated water is reused in step-wise less demanding positions. Inline cleaning of such water flows could be instrumental for instance for energy savings and even for an increased capacity in debottlenecking positions.
In the mining sector acid mine/rock drainage is a major challenge. Treatment with an alkali source such as lime is an inevitable first step. But the neutralized flow still contains vast amounts of sulfate ion. We can remove this in a short time-scale reducing the needs for giant storage ponds.
In a refinery, a petrochemical industry or any other oil-handling industry waters contaminated with dispersed oils are common. Burning the dispersion is always a possibility, but a very expensive one. We can break the dispersion and separate the oil from the clean water.
Heavily contaminated waters include waters that companies pay a lot of money for someone else to take care of in a safe manner. Often they consist of numerous different pollutants – both organic and inorganic. We can treat such waters in a way that most if not all pollutants are efficiently removed from the water. What then remains is only a tiny amount of floc to incinerate or dispose of.