Ozone Water Treatment History
A Timeline for Ozonation Water Purification
- 1785: Odor of ozone gas is recognized emanating from electrical machinery.
- 1840: Schoenbein discovers ozone and quantifies its properties.
- 1886: The ability of ozone to disinfect polluted water is recognized in Europe.
- 1891: Test results from Germany show that ozone is effective against bacteria.
- 1893: First full-scale application using ozone for drinking water in the Netherlands.
- 1906: Nice, France commissions first municipal ozone plant for drinking water.
- 1914: World War I – Poisonous gas research leads to the development of inexpensive chlorine gas. Interest in ozone for water begins to decline.
- 1915: At least 49 major ozone installations are on line throughout Europe.
- 1957: Ozone is implemented for oxidation of iron and manganese in Germany.
- 1964: Spontaneous flocculation in ozone contact chambers led to France constructing an ozone plant to enhance particulate removal.
- 1965: Scotland employs ozone for color control in surface water. Switzerland uses ozone to oxidize micro pollutants such as phenolic compounds and several pesticides.
- 1970's: French exploit use of ozone for algae control.
- 1982: FDA GRAS (generally regarded as safe) declaration for ozone use in bottled water.
- 1987: City of Los Angeles 600 MGD ozonation plant comes on line after 7 years of pilot testing.
- 2000: A Food Additive Petition (FAP) requesting FDA approval of ozone as an antimicrobial agent for direct contact with foods was submitted in August and was approved by the FDA in 2001.
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