Chingford South water treatment works
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The Chingford South water treatment works is a 58 million litre per day water processing facility commissioned in 2005 and located adjacent to the William Girling reservoir in north east London.
Background[edit]
In March 2003 Thames Water identified that by 2005 there would be a deficit in water treatment and supply capacity in North London. To address this deficit a new water treatment facility was constructed on 1.5 ha site adjacent to the William Girling reservoir and the A110 road (51°38′11″N 0°00′57″W / 51.63629°N 0.01582°W).[1]
Facilities[edit]
The Chingford South works abstracts water from the surface waters of the William Girling and King George V reservoirs at up to 40 million litre per day (Ml/d) available throughout the year, and up to 18 Ml/d from the North London Abstraction and Recharge scheme boreholes for up to six months of the year.[1]
The plant is housed in five major buildings:[1]
- Low lift pumping station
- Main process plant (70m by 40m)
- Lamella clarifier plant
- Ozone generation and contactor
- High lift pumping station
The main process units are dissolved air flotation (DAF) and rapid gravity filters (RGF).[1]
Steel tanks were used instead of conventional concrete tanks. Although their design life of 25 years is shorter than concrete tanks (60 years), construction time was faster.[2]
The works were constructed over the period April 2004 to September 2005. The completed plant was handed over to Thames Water in November 2005. The cost was £43 million.[1]
See also[edit]
References[edit]
- ^ a b c d e Stewart, Duncan (2006). "Chingford South WTW" (PDF). Retrieved 4 August 2023.
- ^ Bishop, Phil (15 September 2005). "Giving it the full treatment". Retrieved 4 August 2023.