Programme Vlario

Water concious construction
In collaboration with VLARIO - NAV - Flemish Construction Confederation - VLAKWA - BBRI

How do you increase drought and flood resilience in the built environment through the application of individual and collective innovative techniques? With this COOCK project, VLARIO, the Flemish Construction Confederation, Vlakwa, BBRI and NAV are looking for solutions that can be widely applied in the building sector.

The drought problem has become very topical in Flanders in recent years and includes translating into a decrease in groundwater levels. On the one hand, because of our high population density, we use a lot of water compared to the available water quantity; on the other hand, because of the high degree of paving, we discharge precipitation more quickly and, in the past, not enough effort was made to use local infiltration.

The building sector has an important role to play here, alongside industry and agriculture, in the coming years. It is essential to focus on: rational water use, circular water use and replenishing the groundwater table.

By collecting existing information, detecting bottlenecks, building up new expertise, carrying out translation research and disseminating this information, the project wants to encourage companies from the entire construction chain to apply individual and collective innovative technologies in the field of water-conscious construction and integrate them into their operations. In addition to disseminating this knowledge as widely as possible, tools and instruments will be set up and developed to support the target group and encourage effective implementation.

During this study day, we will give you an insight into the project.

10:00 - 10:35

By Wendy Francken, Director of VLARIO

10:35 - 10:50

Problems and challenges in the construction sector

Wim Garmyn, Project Coordinator for Climate Adaptive Construction Embuild Vlaanderen

In buildings today, relatively clean wastewater from showers and baths ends up in the sewers. With greywater or blackwater recovery, this water can be locally upgraded and reused in a building. For example, treated sanitary waste water can be used for flushing toilets or further processed as water for showers and baths, depending on the technologies used. Water is thus used in a circular way. What challenges do we face and what is the purpose of this project?

10:50 - 11:30

Existing techniques, new technologies and innovations

Veerle Depuydt (VLAKWA), Silvia De Nolf (NAV) & Riet Lismont (VLARIO)

Many projects involving innovative techniques have already been carried out. The further dissemination of knowledge to a large group of building owners, architects, engineering consultants, contractors and installers does not take place or only takes place during the project period and also usually in outline form, which limits the roll-out of these innovative techniques and concepts. The project group researched already existing techniques from various angles so that an overview is available. What do we already know?

Rolling out a new technology on a large scale is not always easy. Within the project, we are also looking for new projects where we can help investigate the bottlenecks. We map out the technical possibilities, quality requirements, technical, organisational and legal bottlenecks of the various innovative techniques in the design, implementation and use phases. Possible solutions to the bottlenecks identified are also considered and investigated. For this purpose, a few projects were selected which are briefly described below.

11:30 - 11:50

Necessary water quality for different applications

Bart Bleys, Laboratory head of BBRI water techniques

In order to be able to use water in a circular way and to apply the principles of trais aquatica to the fullest extent, knowledge about the necessary water quality for the different applications (flushing toilets, watering the garden, washing machine, showering and bathing, cooking, etc.) is needed.

In this presentation we look at the current state of affairs in Flanders in terms of legislation and standardisation. We also look beyond our borders. For example, what about countries where drought problems have been a concern for much longer?

11:50 – 13:00

Continuation of project & question round
with subsequent networking opportunity at Vlario-Vlakwa stand

VLARIO is the consulting platform and information and knowledge centre for Flemish sewerage professionals and experts of rainwater, wastewater and integral water management.

VLARIO collects knowledge through continuous consultation and exchange of experience with all market players, national and international.


  • VLARIO members: free of charge
  • Non members: free of charge
  • No show: € 50
  • Prices exclusive of VAT
  • Registration mandatory

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