knowledge and experiences

Place where innovations meet with customers` needs

In addition to the supply of our products, we are specialised for target individual solutions with a wide range of applications. Arhel provides its partners with custom made devices, necessary for the realization of complex products and services. We cover the areas of application of advanced tools in industrial production, research laboratories, as well as in the field of biotechnology and the environment. 

Extraction of biologically active substances from different media

Extraction of individual whey proteins with high dietary and medical value

  • An innovative high-flow approach to fractionation and purification of proteins
  • Modular design of the device (mobile system or simple upgrade of units with increasing processing needs)
  • A fully automated system
  • Closed circuit system / no discharges

We are developing new solutions in the framework of projects LIFE for Acid Whey and LAKTIKA.

Nonstandard laboratory
measurement & control equipment and electronic units

Today, we meet all over with a need for increased energy efficiency of processes, reduced water use and resources and prevention of production of wastes. Similar requirements are also encountered in research laboratories.

In Arhel, we have developed several exciting solutions in these areas. They allow testing of a larger number of samples in a short time, with less water consumption, chemicals and energy, or the execution of tests, which require specific solutions for power supply and signal detection. Among the most important products, we can name:
  • End-over-end rotator with precise temperature control during incubation of samples
  • Microcomputer control system for the separation centrifuge LAPX 404
  • The preamplifier of signals for increased accuracy of measurements of different sensors
  • Galvanically isolated preamplifiers of electrodes for pH, Rx, O2 and conductivity
  • Adjustable computer controlled 4.5 kW power supply for electrolytic cells

electrolytic cells

Electrolytic cells represent advanced electro-chemical technology solution for treatment of water. We have introduced them for the degradation of persistent compounds and removal of metal ions. Their operation is based on the electrochemical oxidation processes, where no addition of chemicals for their degradation is needed. The operation is based on the formation of short-lived but highly reactive hydroxyl radicals (•HO) produced by electricity. Hydroxyl radicals (•HO) are capable of oxidative degradation and mineralisation of pollutants and elimination of dangerous bacteria. For the formation of hydroxyl radicals, a variety of anode materials are used, such as graphite, platinum, and metal-doped materials. As an anode material with the highest potential of formation of hydroxyl ions, a boron-doped diamond anode (BDDA) is being used. BDDA are very stable and, therefore, safe for processing of drinking water. We developed the solution within the project LIFE PharmDegrade.

Merilni inštrumenti

For the implementation of complex analytical procedures, non-standard measuring instruments with analogue and digital real-time data processing are needed. We have prepared a number of solutions for various clients at home and abroad.

To be able to understand the complex events in the aquatic environment, we have developed a portable measuring suitcase. It is equipped with probes for sensing the physical, chemical and biological parameters in the aquatic environment. The set of measuring probes can be adjusted according to the environmental conditions and monitoring needs.

An innovation represents a probe equipped with fluorescent sensors for the detection of plant pigments (chlorophyll a and phycocyanin) in natural aquatic environments, enabling the evaluation of cyanobacteria and other phytoplankton populations. Integration of probes into a mobile device enables to obtain continuous temporal and spatial information on the status of the water body, which is not possible by classic approaches of collecting of water samples.

Demonstration of the solution in the natural environment was carried out within the framework of the project LIFE Stop CyanoBloom.

mechatronic systems

Arhel is a specialised engineering company in the field of a wide range of products that require the installation of mechatronic assemblies.

Our clients are companies in the field of measurements, telecommunications, security, as well as research institutions who need individual components or integrated product with built-in mechatronic assembly. A typical example of a complex combination of electronic and mechanical components has been a development and manufacture of safety suitcase for money transfer. The microcontroller system controls the multilevel opening of the drawer, alarms set, sound activation, smoke and pyrotechnic protection systems through RFID and electrical locks.

embedded systems and software

We develop and use embedded systems in most of our products. Modern microcontrollers from different manufacturers are being used.