UVterugdringing

UVterugdringing is a term occasionally used in Dutch-language technical literature to describe systems that combine ultraviolet (UV) disinfection with backflow prevention in water services. The exact meaning of the term is not standardized and its usage can vary between sources, sometimes referring to a design approach, a specific equipment package, or a procedural workflow that integrates UV treatment with measures that prevent reverse flow.

UV disinfection uses UV-C light to inactivate microorganisms in water, reducing microbial load without adding chemicals. Backflow prevention refers to devices and methods that block reverse flow in piping, protecting the potable water supply from contamination due to pressure changes, backpressure, or back-siphonage. In a UVterugdringing configuration, these elements are intended to work together to ensure both treatment efficacy and systemic safety.

Common configurations may place UV disinfection upstream or downstream of backflow preventers, depending on the system design and local codes. In practice, a UV unit can be followed by or integrated with backflow protection to ensure that treated water cannot re-enter the distribution network if pressure conditions change. Maintenance considerations include keeping UV lamps and sleeves clean, ensuring sufficient UV transmittance, and routinely testing backflow devices for proper operation.

Potential advantages of UVterugdringing include enhanced drinking-water safety by combining disinfection with protection against contamination via backflow. Limitations involve the dependence of UV effectiveness on water quality (turbidity and color can reduce UV dose), and the need for regular maintenance of both UV equipment and backflow devices. Regulatory requirements and standards vary by country and region, covering both UV system validation and backflow prevention practices. See also UV disinfection and backflow prevention.