Microbial quality of swimming pool water with treatment without disinfection, with ultrafiltration, with UV-based treatment and with chlorination

Swimming pools are traditionally disinfected with a residual disinfectant such as sodium hypochlorite. Nowadays, swimming water without a residual disinfectant is increasingly popular, as can be seen by the growing number of (natural) swimming ponds (Weilandt 2015), but health risks for bathers do raise concerns for these type of pools, so some...

Microbial quality of swimming pool water: Treatment without disinfection, with ultrafiltration, with UV-based treatment and chlorination (PPT)

Effects of water quality changes on performance of biological activated carbon (BAC) filtration

Biological activated carbon (BAC) filtration is an important treatment step in the production of drinking water especially if drinking water is produced from surface water. The performance and processes within a BAC filter have been of interest for researchers since the 1980's, mainly because of its ability to remove natural organic matter...

Strategic investment strategy for software companies using a multi-criteria decision analysis approach

Strategic investments are crucial for software companies as they determine the direction and growth of the businesses. Parallel to continuous improvements in information technologies, increased customer expectations, and competitive environments, deciding between new investment strategies has become even more important. Despite their prevalence,...