Austrian alternative: advanced oxidation gives Vienna a groundwater option

摘要

The Austrian capital Vienna is generally supplied by a pristine source, but the city's supplier, Vienna Waterworks, has had to turn to a groundwater source contaminated by chlorinated hydrocarbons to act as a back-up, DR MARKUS WERDERITSCH describes the role of the country's first advanced oxidation groundwater treatment plant. Vienna Waterworks usually supplies its customers with the best spring water from the mountains. Some 400,000m~3/d is required to supply the city of Vienna, met entirely from 32 wells abstracting to two big spring water supply mains, each of which takes half of the total amount of water put into supply. Other water sources are, however, needed in case of failure or necessary repairs on either of the two supply mains, or during times of increased water demand, such as hot, dry summer days.