Creating solutions in collaboration Annual report 2013

Matthijs Bonte doctorate 

Influence of ATES on groundwater quality

16 December 2013BTO Research

Matthijs Bonte receives his doctorate from VU University Amsterdam for his research into the impacts of aquifer thermal energy storage (ATES) on groundwater quality. ATES systems are increasingly used in residential and non-residential buildings and in greenhouse horticulture, including in the vicinity of areas where groundwater is abstracted for drinking water production.

The research shows that groundwater quality in the vicinity of ATES systems is primarily affected by the mixing of deep and shallow groundwater of different quality. The passage of shallow groundwater – frequently affected by human activities – to deeper levels can accelerate in the presence of ATES systems. Moreover, laboratory experiments demonstrate that a rise in temperature has an impact of various soil processes.  Trace elements are (possibly temporarily) immobilised and organic material is degraded more rapidly.

Further research into water and energy

Bonte carried out his doctoral research within the water sector’s joint research programme (BTO). Under the Water & Energy theme, KWR and the water companies also research well clogging associated with ATES and geothermal sources, high-temperature storage and thermal energy from water mains.

© 2017 KWR Watercycle Research Institute

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