How can we reliably and sustainably supply households worldwide with heat in the future? In the course of the fight against climate change, many governments are wondering that well-known measures such as the use of ground heat or waste heat could form an important component. The Londoners have a very special idea for this.
The heat should not come from any factories, but come directly from people. More precisely, it is about the excrement we produce every day, which over time ends up in the sewer system and then in the sewage treatment plant. So what would happen if this was converted into energy that could be used to heat entire households?
This question is now being investigated. According to the operator Thames Water, the sewage treatment plant in Kingston should use this route up to 2. 000 supply new buildings with heat. Specifically, the process should run like this: Wastewater arriving at the sewage treatment plant is cleaned. This process also heats up the water, which in turn reaches higher temperatures thanks to a heat pump.
In the further course of the process, the heat from the wastewater is transferred to the water to heat the households through a heat exchanger . This then flows back into the city and ensures comfortably warm households. As simple as the process sounds, this is how many emissions should be avoided.
Overall, it is expected that up to 105. 000 tons of carbon dioxide over the next 30 years should be avoided. This corresponds roughly to 15. 000 Car trips around the planet. Anyone who will use the toilet in southwest London in the future will unconsciously become a climate protector.
Using the waste heat we produce from going to the toilet is not a bad idea at all. The idea from Great Britain shows that climate change does not necessarily have to be stopped by individual large projects, but that small initiatives can also prevent large amounts of emissions. So using shit (yeah, now I’ve said it) doesn’t have to be a “shitty” idea.
via The Guardian