The quality and distribution of our drinking water are under pressure

Fri 11 November 2022

Sharing knowledge about thermal energy from water is increasingly high on the agenda. With experience and insight from numerous projects, the possibilities and limitations of aquathermal heating are becoming more apparent. As part of the contribution that aquathermal energy can make to the European energy supply, the Amsterdam International Water Week (AIWW) webinar Thermal Energy Recovery from Water was recently organized, with a contribution on microbial effects of thermal energy from drinking water by PAOTM program manager Jawairia Ahmad. The presentation focused on the extraction of cold from drinking water for cooling purposes, and its effect on the microbiological quality of drinking water.

In addition to being a program manager for our course offering in the field of water, Jawairia will receive her PhD at TU Delft on 14 December 2022 in the field of drinking water quality from the drinking water transport pipeline.

In the Netherlands, the drinking water is being distributed without maintaining the residual disinfectant within the drinking water distribution systems (DWDS’s). To maintain the drinking water quality and specifically the microbial drinking water quality within DWDS’s, biologically stable drinking water is produced and distributed along the 120,000km long distribution networks. On the other hand, now a days to maintain and distribute the biologically stable drinking water is very challenging. There are lot of factors those are playing role, such as; increase in the drinking water temperature because of increase in ambient air temperature, use of drinking water as a source of energy for recovering cold or heat, presence of emerging contaminants of concern in the surface water, PFAS and other micro pollutants that requires new and updated drinking water treatment methods for their removal. Hence it is very important to understand that how we can keep providing drinking water without disinfectant and without compromising the drinking water quality amidst all these challenges.

Our course Biological stability of drinking water distribution systems covers all of the above mentioned aspects in 3 days. In addition to theory lessons, group exercises and excursions will also be organized during the course. This is an IWA supported course scheduled for March 13, 14 and 15, 2023.

The technique and possibilities of thermal energy from surface water (TEO), waste water (TEA) and drinking water (TED) are discussed in our (Dutch) Aquathermy course. Not only are the technology and potential of Aquathermy discussed, but the business case and legal aspects of such projects are also discussed.

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