About HDDW technique
The HDDW technique is a unique and proven method for groundwater extraction and infiltration. This new technology has many different applications, and has advantages compared to other techniques.

In the construction process of a HDDW, a filter tube is placed in an aquifer. Depending on the desired application, water is removed from, or infiltrated into the ground.
Recent project(s)
Burmanstraat project

Burmanstraat project

Since October a Waternet and Visser & Smit Hanab contruction team is busy replacing the polder drains in the Burman... View project
 Work in the dunes near Scheveningen has started
02-12-2013
Work in the dunes near Scheveningen has started
The work for the drilling of the test wells in the dunes of Scheveningen has started. There are a nu...
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TKI-project HDDW for drinking water extraction in the dunes near Scheveningen
27-11-2013
TKI-project HDDW for drinking water extraction in the dunes near Scheveningen
Dunea, Visser & Smit Hanab and KWR Watercycle Research Institute have started a collaboration wi...
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Presentation HDDW as a reinforcement of dikes for the Buisleiding Industrie Gilde (BIG) in the Zoo of Antwerp
19-11-2013
Presentation HDDW as a reinforcement of dikes for the Buisleiding Industrie Gilde (BIG) in the Zoo of Antwerp
Last Thursday, November 14th, Ruben Rothuizen has given a presentation together with Harry Bos of th...
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Desalination
12-09-2013
Desalination
Desalination HDDW is a subsurface intake system for desalination plants. Several intake systems are...
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HDDW video presentations Youtube video's
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