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Optimization of distillation and wastewater treatment processes in HELIOS

April 06, 2021 | Slovenia

Coexistence with the global environment

With the aim to optimize the wastewater treatment process, Helios selected the German company EnviroChemie, which deals with technologies for industrial wastewater treatment. Based on a pilot test on their device, the company decided to introduce a batch oxidation process of wastewater using hydrogen peroxide and UV radiation. The treated wastewater is transported to the Central wastewater treatment plant in Slovenia for biological treatment and then returned to the environment.

The new fully automated oxidation device in Preska is up and running since the end of 2020. Its capacity allows treatment of 5 m3 of wastewater per day. After a one-year operation testing period is over the company will be able to establish if the process proved to be economically efficient and environmentally friendly.

Further on, in 2020, HELIOS introduced the new OFRU ASC500 distillation device for dirty solvents, which are formed as a product of various production phases in almost all plants.

These are solvents used to wash equipment such as transport containers, mixing tanks, filters, tools, etc. The quantities of these solvents are large, and the purification and disposal of the generated waste is a time-consuming and expensive process. Compared to the old distillation device, the new batch-based device enables significantly higher efficiency with lower energy consumption and automatic operation.

The project is part of the company's initiative to reduce waste and carbon footprint and represents one of the major investments in 2020. Since the start of use of the device in September 2020, significant savings in materials, energy and waste have been recorded.

  • The OFRU ASC500 distillation device enables the processing of dirty solvents
    The OFRU ASC500 distillation device enables the processing of dirty solvents
  • Oxidation device for environmentally friendly and cost-effective processing of reaction waters
    Oxidation device for environmentally friendly and cost-effective processing of reaction waters