Poo power plan from Southern Water

By a County Press reporter

Thursday, January 3, 2013

 

POO power is to be used to generate electricity at an Isle of Wight sewage works.

Southern Water is investing £700,000 in the installation of a combined heat and power (CHP) plant at its Sandown water treatment works.

The plant will capture bio-gas that would otherwise be burnt off in a flare. The gas will be used to produce energy that will be used to power and heat the works.

A company spokesman said the plant would also recover heat from engine and exhaust systems via water from heat exchangers.

"This water is then used to warm the treatment tanks, helping speed up the bacterial digestion of the waste," said a spokesman.

He added: "Generating electricity through poo power in this way will enable Southern Water to reduce its carbon emissions from the site by approximately 1,400 tonnes a year."

It is part of Southern Water’s multi-million pound investment to reduce carbon emissions and a target of generating 20 per cent of its energy usage from renewable sources by 2020.

Similar technology is already used at 13 of its other wastewater treatment works and the installation at Sandown is expected to be completed in the spring.

Morné Cloete, Southern Water Project Manager, said: "Harnessing recoverable energy through the use of CHP plants is just one of the innovative ways Southern Water is helping reduce its impact on the environment by reducing our carbon footprint while also cutting our energy costs."

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