The pressure on the groundwater reserves in Noord-Brabant is increasing. This is due to increasing levels of drought over the last couple of years (2018-2020). The expectation is that these events will occur more frequently in the future. For that reason more research is required to better understand the options for a more circular use and reuse of water. This study assessed the options of effluent reuse from 4 AWZI’s to replace the intake of groundwater and drinking water in the industrial and agricultural sectors. Aquavest has been applied in this study to identify the optimal system solution (consisting of water treatment and transport infrastructure) assuming a restriction on total groundwater extraction volumes.
The central question was:
”In the event of a restriction on groundwater extraction of 15M m3 per year, how can the effluents from the 4 AWZI’s be best utilized to meet the demands for water from municipalities, agriculture and industry?”.
The overall objective of the project is to reduce the intake of groundwater and drinking water from agriculture and industry by using effluents with an equivalent quality. The study therefore requires that supply and demand are wisely matched, taking into account the transport distance from the AWZI’s to the industrial and agricultural water users.
The following applies; see the topography picture below
- The effluents can be supplied by 3 RWZI’s (Aarle-Rixtel, Dinther, Asten) and 1 IAZI (Bavaria)
- The total of 1200 agricultural groundwater extraction wells in the area have been reduced to 12 ‘priority areas’ for groundwater abstractions within the agriculture sector.
- The irrigation demand for agriculture occurs in the months from April to August. Outside these months, there is no need for effluents.
- The drinking water and/or groundwater intake per industry is known. These intake volumes are assumed constant throughout the year.
AquaVest has generated an optimized system solution, an overview of water use per sector and an overview of the total costs (CAPEX + OPEX over time). Please contact us for more information.