SENSOR DDS®
DAMAGE/LEAK DETECTION & MONITORING SYSTEM TO PROVIDE SECURE CONTAINMENT & POLLUTION CONTROL

A highly effective Damage/Leak Detection system, SENSOR DDS®, was developed in 1991 in Slovakia to detect damage to geomembrane liners which are used for municipal and hazardous waste landfills, industrial wastes, lagoons, tanks, sedimentation basins and similar facillities that use geomembranes.

Damage to the geomembrane is detected by electric current flow and not the seepage of liquid. This means that the potential for liquid leakage trough the liner can be detected before serious environmental damage occurs.

Special sensors are installed under the geomembrane liner during construction of the containment site. These sensors are connected by wire to a central control box located at the side of the containment area.

After copletion of drainage/cover layers, an electric source above the liner is activated and any current abnormality resulting from a damaged liner area is detected. The data acquired on site is interpreted by the special software which produces three dimensional graphics identifying the actual damage positions.The locations of these potential leakage points are advised to the site within a few hours permitting exposure of the damaged areas and liner repair before the site is put into service.

          

The SENSOR DDS® is available to perform for a period ranging from 6 months to 20 years. After copletion of constructing and testing for damage and repair as required, the geomembrane liner is certified to be «damage free». Subsequently, periodic inspections can be arranged to suit the customer's requirements to monitor the integrity of the liner system. In addition, a continous monitoring system - SENSOR DDS - CMS® is also available. Any damage occuring is immediately notified to the customer.
      
SENSOR DDS® has been succesfully installed since 1991 in more than 30 countries surround the World over 400 projects involving over 8 million m2 of liner system.

Here are some of the main advantages of SENSOR DDS® :

• Rapid and precise detection of damaged areas in geomembrane liners after construction completetion.
• Systems are available for monitoring for long periods.
• Simply and quickly installed.
• Detects the potential for leakage before significant enviromental pollution can occur.
• Used for solid waste landfills, hazardous waste containment areas, industrial waste lagoons, tanks, mining ponds, sedimentation basins and similar facilities using geomembranes.
• Owner of certificates - ISO 9001:2000, BAM , TÜV, SKZ, TSUS
• Alarming in time damages into lining, without any expensive repairs
• Easy scanning of the geomembrane
• A technical document and an electric map are assured;
• Easier investigation in case of a damage
• Economical solution in comparison with the total budget for the project.

SENSOR DDS® is used to the following types of works:

• Hydraulic Works: sewerage, industrial pools, lagoons, waste landfills, water tanks, dams, channels
• Civil works and embankments: lagoons along the highroads, bridges, tunnels, pipes
• Constructions: horizontal garden-platforms, subsoils' and foundations' lining.