From composting to biomethane

Online presentation and visit to the Santhià plant (YOU)

Tuesday 19 October 2021, ore 15:00 on line
Wednesday 20 October 2021, ore 11.00 plant

Biomethane from waste is today an environmentally virtuous path , which allows you to transform a problem, that of the organic fraction of the waste, into a renewable fertilizer energy source. In the past years, composting has been identified as an optimal path for the stabilization of organic waste e, surely, it is still a valid method for this purpose. However, today, the possibility of obtaining biomethane, before compost production, although more expensive in terms of investment, it is more effective from the point of view of energy efficiency, as from the environmental one.

However, one of the obstacles to a greater diffusion of waste biomethane plants is that of the economically sustainable minimum size, which has so far been placed on a dimension of 40.000 tons of organic waste per year. The most recent plant developments make it possible to lower these thresholds, making smaller projects more feasible.

This is of particular interest especially for Central and Southern Italy, where the lower population density and logistical problems make it more difficult and expensive to concentrate large quantities of OFMSW. Without forgetting the strong resistance of local communities to the impacts on the territory of the related logistics.

The meeting will take place in two phases:

  • Technical presentations, via webinar, the 19 October 2021 ore 15:00
  • Visit to the Iren plant in Santhià (YOU), the 20 October 2021, ore 11:00

The Iren composting plant in Santhià (YOU), it has recently been integrated with anaerobic digester and biomethane production, and is now in full production.


  • Piero Mattirolo, Agroenergia The market situation of the OFMSW and the development of biomethane in the waste sector
  • Gian Francesco Galanzino, EntsorgaComposting automation and the key factors for reducing the minimum plant size
  • Maurizio Bellandi, Tecnoproject Industriale, Maximize biomethane production: the experiences of TPI

The guided tour will include the pre-treatment stations, anaerobic digestion, upgrading and composting.

The registration fee for this event is 50 €, VAT included. (payment information here)

For the visit to the plant, members will be asked for identification data and the Covid Green Certification 19.