The EPSE Method offers a unique solution for the treatment of wastewater and hazardous waste containing soluble metals. Current treatment the cleaning methods apply a number of technologies and multi-phase processes which involve expensive investments, and which can be replaced with a single, simple EPSE Method and furthermore achieve significantly better results.


Key Advantages

  • Simple, fast, cost-effective
  • The multimetal precipitate created as an end result is irreversibly insoluble and exploitable
  • Works on all metals* with a single round of treatment
  • The effectiveness is not dependent on metal concentrations
  • Functions in low temperatures and is not dependent on temperatures
  • Does not require large-scale investments in equipment and can often be directly integrated into existing equipment

* Metals in the table below.

The EPSE Method is also revolutionary from a commercial point of view. These days, for example, metal finishing can cost treatment plants a lot of money due to the hazardous waste it generates. This hazardous waste may nevertheless contain 1,000 times more copper than the typical mined mineral. For the mining industry, EPSE provides a cost-effective and single-phase cleaning process with excellent results and the possibility of recovering metals from the precipitate.



The EPSE precipitation technique is simple, fast and cost-effective. The process is based on the dosing of the EPSE chemical and the adjustment of the pH level. Its operating costs are low and its implementation does not typically require big investments.

The precipitate generated in the EPSE method is irreversibly insoluble, whereas, in the most wide-spread methods, the precipitate remains soluble. In the EPSE Method, the water purified of metals and the resulting insoluble precipitate can be classified as inert waste, which does not require special storage or special permits like hazardous waste does. At the same time, the method’s users achieve significant cost savings.

The EPSE technology works on all metals with a single round of treatment. Many of the methods which have been used so far are selective, which is also why they require several rounds of treatment in a multimetal environment. While alkali metals and, partially, alkaline earth metals are not directly precipitated with the EPSE Method, their concentrations can be lowered (as chemical complexes) in the same treatment, if necessary.

The EPSE method is effective despite metal concentrations. Current methods make the removal of especially those concentrations which are already small very difficult. The EPSE method has been tested and successfully used in both industrial waters and mining waters, with both very high and very low metal concentrations.

The EPSE method is effective starting from low temperatures. This again results in a cost advantage compared to methods previously used.

The precipitate formed in the process settles rapidly. The insoluble precipitate formed in the EPSE method can be used as a raw material in a number of ways. The most profitable way to use it is to recover critical metals, in particular.

We can precipitate the metals with a single precipitation process. And with inexpensive equipment and operating costs at that!