Biomethane

Biomethane

“I am I plus my surroundings; and if I do not preserve the latter, I do not preserve myself.”

(José Ortega Y Gasset)

What is biomethane?

Nicknamed green gas, biomethane is a 100% renewable gas produced from food and catering waste, agricultural and household waste, as well as sludge from wastewater treatment plants.  More specifically, biomethane comes from the decomposition and fermentation of this organic waste in an anaerobic digester, i.e. in an oxygen-free environment: this operation produces biogas, poor in energy, which contains only between 40% and 60% methane, 40-60% CO2 and some traces of other compounds including H2S.  Biogas is then purified – eliminating carbon dioxide and other compounds  – to provide biomethane, a 100% renewable, non-fossil energy source.

Treated and odorised, it can therefore be very easily injected into the natural gas distribution network.
Its properties and qualities are similar to those of natural gas: it can therefore be used to provide a district heating network, but it can also be used as fuel for public transport or heavy vehicles, and it can also be developed to produce electricity.

The advantages of biomethane

Biomethane contributes to the development of a local circular economy in which waste is transformed into renewable resources and offers many other ecological benefits, including in particular:
  • The reduction of greenhouse gas emissions: the methane produced naturally from organic waste is, in fact, transformed into clean energy;
  • The improvement of soil quality and the conservation of groundwater;
  • The creation of local, non-transferable jobs;
  • The recovery of waste that becomes renewable energy (the sustainable management, therefore, of waste);
  • The use of residues from biogas production as natural fertilizers (therefore the replacement of chemical fertilizers with natural fertilizers);
  • The creation of local, non-transferable jobs;
  • The use of existing network infrastructures.

THE CYCLE OF PRODUCTION OF THE BIOMETHANE PLANTS

It improves the managing of the wastewater , reducts the percentage of azotate in the land

The plants for the production of biomethane, projected by L&L, will have the capacity to product 300 Smc/h (300 cubic metres per hour), started from the biogas obtained from the anaerobic digestion of zootechnical wastewater and agricultural crop of second rotation. The produced methane will be entered in the SNAM net.

L&L Biomethane Plants