BBC News, Wiltshire
Design architectsIt has been revealed that plans grow fruits and vegetables using carbon dioxide “cleaned” in greenhouses above a discharge in what is claimed to be a “first world”.
Wiltshire’s landfill is directed by CRPPPER & SONS LTD, which is currently waiting to obtain a building permit for the project.
The company already captures methane that leaves waste to feed its operations and send energy to the national network, as well as CO2 production.
Having now launched a business of community interest called Sustain Wiltshire, she said that she wanted to use the site to cultivate food for the region all year round.
Plans are to use greenhouses on the site to take advantage of CO2 and heat to produce food such as lawyers, which are generally not commercially cultivated in the United Kingdom.
The products would then be sold to people living in the region in cities and villages such as Royal Wootton Bassett, Malmesbury and Brinkworth.
The project director, Nick Ash, said that there are other similar projects around the world, but the specific Wiltshire is a first world.
“What comes out of the top of the gas engine [the one already generating energy] is a fairly clean CO2. In Europe, this is already used in greenhouses, so we were going to put this in our greenhouses.
“So you would cultivate them [vegetables and fruit] In a rich CO2 environment, they would grow better than in normal air, “he said.
“They [the plants] will be the use of heat, light and power, but they will have no contact with the soil. “”
The system is currently taking discharge gases and extracts methane for energy and cleanses gases – for example, eliminating hydrogen sulfide and using bacteria – with a cleaner by -product a by -product of the process.
The project will imply to flatten a large section of the landfill site to create pits – called “cells” – which will be bordered by concrete and will have waste to produce gases.
The gas will then be captured and cleaned so that it can be used to produce electricity and pump CO2 in the greenhouses that will be located above the cells.
“We plan to completely modify the way we travel it effectively,” said Ash.
“He [waste] would go in gas cells to be reacted rapid, which would produce gas very quickly, then would have the garbage, then [go into] storage cells that would feed recycling. “”
The company also plans to make the portable greenhouses which will empty the pits below and pass fresh waste.
Waste that cannot be recycled immediately can rot organic matter and produce usable gas, then waste can also be treated again.
Mr. Ash said that if she had obtained a building permit, the project would change the appearance of the site, with more grass and added trees.
The project overall is called the Super Midden, based on Midden – a word mainly used by archaeologists to describe old waste.
Crape & Sons Ltd said that development could produce 80% of the needs of surrounding fruits and vegetables, reducing emissions, food kilometers and improving food security.
Ash told the BBC that he did not think that it would fail technically and that the biggest challenge would be to “present something new”.
