Thursday, January 7, 2010
NEW water
The Singapore Water Reclamation Study (NEWater Study) was initiated in 1998 as a joint initiative between the Public Utilities Board (PUB) and the Ministry of the Environment and Water Resources. The primary objective of the joint initiative was to determine the suitability of using NEWater as a source of raw water to supplement Singapore's water supply. NEWater is treated used water that has undergone stringent purification and treatment process using advanced dual-membrane and ultraviolet technologies. NEWater could be mixed and blended with reservoir water and then undergo conventional water treatment to produce drinking water.
Planned IPU as a source of water supply is not new. It has been practised in several parts of the United States for more than 20 years. At Water Factory 21, Orange County Water District, Southern California, high quality water reclaimed from treated used water has been injected into underground water since 1976. Similarly, at Upper Occoquan Sewage Authority, North Virginia, high quality reclaimed water is discharged into Occuquan Reservoir since 1978.
Singapore's first reservoir is MacRitchie reservoir, which was built by the British in 1867. Subsequently, as Singapore developed into a modern city over the years, more sources of water were needed to sustain the city’s growth. Thus two local reservoirs were added to the rapidly modernising colonial city.
After independence, the Public Utilities Board took over the control of basic supplies including water. From then on, there have been many developments and improvements to increase the water supply for Singapore.
The 1960s and 1970s saw great development for Singapore. In order to maintain that, many big water projects were embarked upon to increase the water supply. Examples of these projects included the Kranji-Pandan Scheme, the Upper Pierce Project and the Western Catchment Water Scheme.
Modern Singapore sources her water from a network of reservoirs and water catchment areas. By 2001, there were 19 raw water reservoirs, 9 treatment works and 14 storage or service reservoirs locally to serve domestic needs.
Info form:
http://en.wikipedia.org/wiki/Water_resources_of_Singapore
http://www.pub.gov.sg/newater/Pages/default.aspx
http://images.google.com.sg/images?hl=en&um=1&sa=1&q=bedok+reservoir+in+singapore&btnG=Search&aq=f&oq=&start=0
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