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Bacteria converts wastewater into biofuel

23:05
Mon, 20 March 2017
Telegraph

naked-science.ru

Photo: naked-science.ru

New project of two Spanish companies Aqualia SEAT and focused on the development of biofuels derived from waste water.

From water companies and a car manufacturer typically can’t have anything in common, but two companies from Spain have teamed up to create biofuel from sewage. Aqualia SEAT and started working on project Life Metha-morphosis (“metamorphosis of life”) aimed at the creation of biofuels from waste organic wastes, which are then used for the production of vehicles that use compressed natural gas. While carbon dioxide emissions from such vehicles will be reduced by more than 80 percent.

The project is built around the production of biomethane is a relatively new type of biofuel that is already used in power houses, buses, trucks and ships . Life Metha-morphosis, as well as some other projects aimed at the biomethane production using bacteria, necessary for the destruction of solid waste, in a process called anaerobic digestion.

To date, developed two different objects to demonstrate ways to solve this problem. A prototype UMBRELLA that is installed in a wastewater treatment plant serving Barcelona, utilizes anaerobic membrane bioreactor to separate gas from solid waste. The second system called Annamox ELAN, removes nitrogen from the biogas, cleans it and converts to compressed natural gas, which can then be used in vehicles. The company also claim that the water produced by this technology, cleaner than the one that usually comes from sewage treatment plants, and nitrogen removed from the gas, can also be utilized.

According to the project standard, the plant can process about 10,000 cubic meters of wastewater per day, which, in turn, will create about 1,000 cubic meters of biomethane. This fuel will be enough for 100 km for each of the 150 cars.

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