Post a comment on the text below

Text box /case studies: Waste water reuse

Case study – waste water reuse for irrigation - Milan, Italy

Reuse of wastewater for irrigation reduces the quantity of drinking water used for irrigation and guarantees supply of high-quality water for farmers in the Milan area. All the water treated by the Nosedo and San Rocco plants meets the limits applicable to reuse for irrigation purposes, as certified by ARPA, and is used to irrigate a substantial portion of farmland with a surface area of over 100 km². This practice for irrigating the rural areas outside the city, has its roots in the past and reflects the historical and cultural heritage of the area.

Case study – beer brewed using recycled waste water - Čížová microbrewery – Czechia

To raise public awareness of the importance of preserving water, together with Veolia, Čížová microbrewery in the Czech Republic developed a beer brewed using recycled waste water. Veolia recovers waste water at its Prague treatment plant and then treats the water using a mobile, membrane water reclamation unit. The treatment comprises coagulation, followed by ultrafiltration and reverse osmosis, where ultra-fine synthetic membranes serve as a filter that lets water pass through and retains suspended solids and other substances, such as micro-organisms and viruses. The water is then filtered through granulated activated carbon and disinfected. The advantage of membrane technology is that the filtration does not need added chemicals and new types of membranes have low energy consumption. The treated water is then transported to Čížová microbrewery, where it is used to brew ERKO beer. 15 hectoliters of lager were produced in May 2019 and more continue to be produced as the interest in supporting recycling schemes grows.