Background information
Drinking water production involves handling large volumes of raw water, most of which is extracted from the ground.
Raw water is typically kept at a low temperature of between 3 - 10°C depending on the time of year. The raw water is often filtered in large sand filters in the form of cisterns. The cold raw water cools the cisterns, which often leads to major challenges with condensation. Condensation forms when the surrounding air has too high a moisture level in relation to the cold surface of the cistern. The moisture level is then higher than the so-called dew point.
Moisture in the air enters via ventilation of the premises and from open water surfaces. Moisture can also be a problem in other parts of the premises because powdered chemicals are used in drinking water production. The storage of these chemicals is facilitated if a lower level of moisture in the air can be maintained throughout the premises.
These challenges can be met with the help of Airwatergreen dehumidifiers. The dehumidifiers have a uniquely low electricity consumption, they are easy to install and have high capacity even at low temperatures!
The simplicity of installation allows for testing and evaluation before permanent placement and installation.
What problems did the Airwatergreen dehumidifier solve?
A NEXT240 dehumidifier was installed at Tekniska Verken Linköping for two months. During the test, no piping was used, but the air was taken directly at the machine and blown out freely in the room. To ensure the correct moisture level in the air to avoid condensation on the tanks
external sensors were used to measure both the moisture level and, above all, the temperature of the cold surfaces.
In other words, the dehumidification was carried out dew point controlled with the AWG Climate Control System. AWG CCS is a cloud-based system for monitoring and controlling dehumidifiers and sensors.
Benefits of using awg products vs. doing nothing?
Drinking water production is in itself food production. It is therefore important to avoid condensation in these premises, which can lead to both equipment damage and mold growth.