Description

Public swimming pools have a great recreational value for the sportive and recreational life all over the world. For pool water flexible and effective treatment steps are needed as the water is recirculated and treated over large periods of time, and the treatment has to scope with a high variable water quality due to the number of bathers. Additionally public swimming pools are often a financial burden for municipalities due to their high water and energy consumption.

A non adequate pool water treatment can adversely affect the operating costs of public swimming pools, the pool water quality and the environment. Different issues play a major role by the operation of swimming pools, for instance:

• formation of disinfection by-products (DBP, such as organically bound halogen adsorbable on activated carbon (AOX), or trihalomethanes (THM),
• additional fresh water consumption to meet the required limits,
• energy consumption for heating-up of the for dilution purposes added fresh water to pool water temperature.

The main goal of the project is to evaluate the challenges and advantages of the combination of ultrafiltration (UF) with nanofiltration (NF) in a variable, load-dependent partial flow with additional UF backwash water treatment. The combination of the two filtration processes should, on one hand, increase the health safety and the satisfaction of swimmers and, on the other hand, improve the efficiency of the water treatment system regarding energy, water and chemical consumption.

• W.E.T. Wasser. Energie.Technologie GmbH
  Michael Reis, Werner Sauerschell