Introduction to Operation OASIS

The massive waste water problem that currently pollutes our bathing waters costing £billions to process throughout the world can be used to irrigate and reforest desert coastlines to induce rainfall.

Our aim is to use the return ballast capacity of super crude carriers which currently transport sea water half way around the world at great financial and environmental cost. This ballast is discharged into the sea, often introducing invasive marine species which affects the stability of indigenous species of flora and fauna.

The E.U. is legislating against this practice and tanker operators will be forced to seek an alternative.

Operation OASIS offers an exciting opportunity for ballast water. Transporting treated waste water to irrigate and reforest arid coastlines to induce rainfall has to be the way forward.

One tanker loaded with 300000 cubic meters of treated waste water would support 57 hectares of forest for a whole year.

Reclaiming deserts to enable people to feed themselves and grow great forests will offset the carbon emissions from shipping.

With global food shortages upon us we are already feeling the strain on our pockets in the developed world and renewable resources are in rapid decline. Drought is affecting all major food producing countries and wells are running dry. Water scarcity poses major problems for us and our children. We need to act fast in order to avert a major global catastrophe.

When the mighty river Amazon dries up and it's fish stocks die it is time to take stock on how we manage our fragile environment. For more detailed information visit our website and forum at:

Tuesday, 2 November 2010

Anaerobic Digestion News: Did You Know that Thames Water Burns Its Sludge (i...

Anaerobic Digestion News: Did You Know that Thames Water Burns Its Sludge (i...: "Thames Water achieved a saving of £15m on its electricity bill in 2008/9 by generating its own renewable power from its 13.6 million custome..."

Wednesday, August 04, 2010

Did You Know that Thames Water Burns Its Sludge (it Also Digests It Too)

Thames Water achieved a saving of £15m on its electricity bill in 2008/9 by generating its own renewable power from its 13.6 million customer created sludge.

Britain's largest water and sewerage company generated a 14 per cent of its power needs from a combination of burning sewage sludge at some locations, and anaerobically digesting it at others, and then burning the methane derived from it.
Thames Water's Climate Change Strategy Manager, Dr Keith Colquhoun, is quoted as saying that their investment in renewable energy plants has been
"good news because we now treat 2.8 billion litres of sewage every day at our 349 sewage works. The solids in sewage have a high calorific content that we use to generate electricity.

"And this isn't a gimmick: as well as helping us to be more sustainable as a company, it also saves money - £15m less spent on energy last year alone, saving money for customers."

"Our goal is to cut greenhouse emissions by 20 per cent on 1990 levels by 2020 - that's about 200,000 tonnes less CO2. By using sludge derived power and other renewable energy sources, we're making significant progress towards this target after cutting emissions by five per cent in the past two years, despite grid energy becoming more carbon-intensive.

"Delegates at the Copenhagen Climate Change Summit must face the fact that combating climate change is no longer about talk. It's about all of us taking action - and in our case, that includes sludge power."

Thames Water - which has the largest renewable electricity generation capacity inside the M25 motorway ring, excluding the commercial electricity generators - uses two methods to generate power from sewage:

1. Thermal destruction with energy recovery, where sewage sludge, which is the solid content of the sewage dried into blocks of 'poo cake', is burned to generate power; and
2. Anaerobic digestion, or (with) CHP (combined heat and power) generation, which is where methane derived from sewage sludge is burned to created heat, which in turn generates power.

The following Thames Water sewage works have AD/CHP plants: Maple Lodge (Rickmansworth), Mogden (Isleworth), Rye Meads (Herts), Deephams (Edmonton), Oxford, Reading, Long Reach (Dartford), Slough, Hogsmill (Kingston), Beddington (Surrey), Swindon, Bishops Stortford, Banbury, Aylesbury, Basingstoke, Bracknell, Camberley, Crawley, East Hyde (Luton) and Wargrave (Berks).

And the following two works use thermal destruction:

Beckton, in East London north of the River Thames, Europe's largest sewage works, which treats about 3.5 million people's waste every day; and Crossness, in East London south of the river, which treats the human equivalent of 2 million people's waste.

After it has been used to generate electricity, Thames Water then offers the remaining sewage sludge to farmers to use as fertiliser, or to developers as landscaping material or soil improver. In 2008/09 the firm put 100 per cent of its sewage sludge to beneficial use, sending none of it to landfill and as a result saving millions of pounds in UK landfill tax.

Further details about using sludge to generate power and Thames Water's 100 % win-win utilisation of sludge for renewable energy production can be found in the company's Corporate Responsibility Report

No comments: