Glycol is an organic compound that belongs to the group of dihydric alcohols (diols). The most important representatives are ethylene and propylene glycol, which are used as heat transfer media, antifreeze and in industrial water treatment. Glycol is characterized by its high solubility in water and its low freezing points, which makes it particularly useful in closed circuits and for specific industrial applications.
Table of contents
Chemical properties
Glycol has the molecular formula C2H6O2 (ethylene) or C3H8O2 (propylene) and has the following properties:
- High water solubility: Enables uniform distribution in aqueous systems.
- Lower freezing points: Prevents water-bearing systems from freezing.
- Stability at high temperatures: Suitable for heat transfer media in heating and cooling systems.
Areas of application
Cooling circuits
Glycol is used as an antifreeze in closed cooling circuits. It protects against freezing and prevents corrosion thanks to specially formulated additives.Heat transfer medium in industry
In the chemical and food industries, glycol is used as a heat transfer medium in systems for controlling the temperature of processes.Frost protection in cooling towers and evaporative cooling systems
Glycol prevents frost formation and ensures trouble-free operation at low ambient temperatures.Waste water treatment
Waste water containing glycol is produced, for example, in the aviation industry during the de-icing of aircraft. This wastewater must be treated biologically or chemically in order to minimize the environmental impact.
Environmental aspects and treatment
Ethylene and propylene glycol are biodegradable, but can cause oxygen depletion in water bodies in high concentrations. Wastewater containing glycol must therefore be treated in special wastewater treatment plants in order to reduce the chemical oxygen demand (COD).
Photo: Our Made in Germany equipment for boiler systems, hot water networks, cooling water treatment and membrane systems
Products and solutions from ALMAWATECH
In addition to our solutions for wastewater treatment, ALMAWATECH also offers glycol-containing products as additives for cooling circuits cooling circuits. These products reliably protect your systems against frost and corrosion and are individually tailored to your requirements. Our glycol additives are made in Germany and meet the highest quality standards to ensure the long-term efficiency and operational reliability of your cooling circuits.
Conclusion
Glycol is an indispensable component in many industrial applications, especially in cooling and heating systems. At the same time, it poses a challenge for wastewater treatment as it causes high COD values. With targeted technologies and products, ALMAWATECH supports industry in the efficient use and environmentally friendly treatment of media containing glycol.
For further information on our products, please feel free to contact us at any time!
