March 1, 2025
What is grey water?
Greywater is a term used to describe used but uncontaminated water that has undergone domestic or industrial processes. It can include wastewater from handwashing, dishwashing, laundry, and other domestic uses, as well as waste from industrial processes that can be further treated for reuse. It is a critical resource that must be managed and treated before being returned to the environment or used in water supplies.
Greywater use
Greywater (from showers, sinks, and the kitchen) can be treated and reused on-site, as long as the end product (e.g., toilet wastewater used for flushing) flows into the sewer system. The use of greywater for irrigation or infiltration requires approval from the cantonal authorities. Water recycling contributes to the conservation of groundwater reserves.
Water reuse
Water reuse is an important step toward a sustainable future that reduces freshwater consumption and the strain on natural resources. In today's world, where climate change and population growth are exacerbating water scarcity, recycling is becoming not just a useful but a vital practice. Treating and reusing wastewater in industry, agriculture, and households helps reduce pollution and preserve ecosystems. The introduction of modern water treatment technologies makes this process safe and efficient, opening up new opportunities for responsible water use.