Käppala Association

Netmore products and solutions in action

Case introduction

The Käppala Association runs a wastewater treatment plant operation, located in Lidingö municipality, Sweden. The association purifies wastewater underground from more than half a million people in eleven member municipalities. The sewage systems and pumping stations metamorphose the wastewater into sludge, biogas and heat to the society cycles.


The challenge

Working with waste flows can expose visitors and staff of the association to toxic substances, such as chemical compounds before it is transformed and cleaned. Therefore, knowing the location of staff and visitors is a necessity safety precaution in case they need to evacuate due to any water or heat leakage. The association did not have full mobile– and Wi-Fi coverage inside the treatment plant, lending DECT phones to employees and visitors.

The solution

In 2018 they installed a Fiber DAS-system, (Distributed Antenna System) that distributes both 3G mobile- and Wi-Fi connection, enabling greater control and direct communication between all internal systems. An integrated DAS-system is generally known as the best way to boost mobile and Wi-Fi signals. It is designed to better connectivity between buildings and expansive sites.


The result

  • The access-points inside the treatment plant now all get mobile- and Wi-Fi coverage.
  • Reduced need for manual surveillance in the control room.
  • The employees can access the control room functions straight from their mobile phones and tablets despite their location inside the treatment plant.
  • Staff and visitors are now visible in the positioning system which ensures a higher personal security.