szürkevízújrahasználat

Greywater reuse, known in Hungarian as szürkevízújrahasználat, refers to the collection and treatment of wastewater from domestic activities like showering, bathing, laundry, and dishwashing for subsequent reuse. This contrasts with blackwater, which originates from toilets and contains fecal matter and is generally considered more heavily contaminated. The primary goal of greywater reuse is to conserve freshwater resources, as it significantly reduces the demand for potable water, especially for non-potable applications.

The collected greywater typically undergoes a filtration and disinfection process to remove solids, soaps, detergents, and potential pathogens. Various treatment systems exist, ranging from simple on-site filters to more complex multi-stage treatment plants. Once treated, the greywater can be safely used for purposes such as toilet flushing, landscape irrigation, and laundry. Implementing greywater reuse systems can lead to substantial reductions in a household's overall water consumption, contributing to both environmental sustainability and lower utility bills. Regulations and guidelines for greywater reuse vary by region, often specifying treatment standards and allowable uses to ensure public health and environmental safety.