Sewage That Is Full Of Green Energy - An article on the environmental potential of using energy from sewa...
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21st Century : Environment : Sewage That Is Full Of Green Energy

Sewage That Is Full Of Green Energy

Sewage That Is Full Of Green Energy


GREEN energy - power produced and harnessed during the treatment process in some sewage works in the United Kingdom - is helping to run operations within them.

Southern Water’s project is proving such a success that the utility company has just announced that it is enlarging the programme to start powering more plants.

Six works in Kent and Sussex in south-east England are already using this renewable energy and now another three systems are to be created in works that recycle cleaned wastewater into the environment via rivers and watercourses.

The biogas produced during the treatment works process is made up of 62 per cent methane, 35 per cent carbon dioxide and some trace elements and is recycled into both electricity and heat.

The six sewage works already using this energy are producing 12 million kilowatt-hour (kWh) of electricity a year - enough energy for lighting, cooking and domestic appliances in about 1,700 homes.

If any power is produced above the needs of the treatment works it is now being exported to the national grid to enable more people to take advantage of this green energy.

And in another bonus, the recovered heat from the power plant’s engine is treating solid waste removed from the wastewater to be safely recycled as agricultural fertiliser.

Southern Water is hoping to harness more green power in the future and is exploring other ways of using green energy, including hydropower water turbines.

Recognition of its work with green energy is the recent approval by the National Energy Foundation to become part of the Carbon Trust’s Energy Efficiency Accreditation Scheme, one of just a handful of utilities so far to be recognised.

This is just one example of the growth in use of modern environmental technology in the UK. It is a sector that is gathering momentum and the figures prove it.

At present the UK environmental market is estimated to be worth more than 14 billion pounds sterling per year. It has grown by 15 per cent since 1997 and is expected to reach more than 21 billion pounds in value by 2010.

Environmental laws and policies plus an increasing awareness of the savings that good environmental practices can deliver for well-run businesses are coming together with the mood of a nation concerned about issues such as climate change and that wants to take more responsibility to secure the future of the planet.

By Richard Levick, London Press Service

London press site
http://www.londonpress.info
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