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  2. Water supply and sanitation in Germany - Wikipedia

    en.wikipedia.org/wiki/Water_supply_and...

    Water is not scarce in Germany, except for occasional localized droughts. Public water utilities extract only 3 percent of total renewable water resources in Germany, or 5.4 billion cubic metres out of 182 billion cubic metres annually. [7] Bank filtration plant in Mainz, Germany. Extraction well on small hill visible in foreground.

  3. History of water supply and sanitation - Wikipedia

    en.wikipedia.org/wiki/History_of_water_supply...

    The chlorination of the water supply helped stop the epidemic and as a precaution, the chlorination was continued until 1911 when a new water supply was instituted. [130] Manual Control Chlorinator for the liquefaction of chlorine for water purification, early 20th century. From Chlorination of Water by Joseph Race, 1918.

  4. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, ... Germany and in 1897 the city of Maidstone, ...

  5. Water chlorination - Wikipedia

    en.wikipedia.org/wiki/Water_chlorination

    Early attempts at implementing water chlorination at a water treatment plant were made in 1893 in Hamburg, Germany. In 1897 the town of Maidstone, England was the first to have its entire water supply treated with chlorine. [5]

  6. Cologne sewerage system - Wikipedia

    en.wikipedia.org/wiki/Cologne_sewerage_system

    A mechanised waste water plant opened in 1905 and five purification plants now filter the water before releasing it into the Rhine. [ 1 ] [ 3 ] By 1933 the length of the system measured 735 kilometres (457 mi), [ 3 ] and by 2011 it had expanded to 2,400 kilometres (1,500 mi).

  7. History of water filters - Wikipedia

    en.wikipedia.org/wiki/History_of_water_filters

    Hippocrates believed that water had to be clean and pure. Rainwater was the best water, but had to be boiled and strained before drinking to get rid of the "bad smell" and to avoid hoarseness of the voice. [3] [4] He designed a crude water filter to “purify” the water he used for his patients. Later known as the “Hippocratic sleeve ...

  8. History of municipal treatment of drinking water - Wikipedia

    en.wikipedia.org/wiki/History_of_municipal...

    This is typical of the lack of understanding of how disease was transmitted and followed the general belief that water courses such as rivers and lakes were great sinks for purification of contaminated water. "Interior of treating and filtration plant, Boulder City, NV circa 1932. Rapid sand filters and controls on the left." National Archives ...

  9. Water supply and sanitation in the European Union - Wikipedia

    en.wikipedia.org/wiki/Water_supply_and...

    Water supply and sanitation (WSS) in the European Union (EU) is the responsibility of each member state, but in the 21st century union-wide policies have come into effect. [citation needed] Water resources are limited and supply and sanitation systems are under pressure from urbanisation and climate change [citation needed].