OFMSW plants

OFMSW Biogas Plants

OFMSW biogas plants provide a sustainable solution for the recovery and valorisation of large volumes of organic waste from households and commercial and industrial sources, including large-scale retail and the Ho.Re.Ca. sector.

Through anaerobic digestion, the Organic Fraction of Municipal Solid Waste (OFMSW) can be converted into renewable energy, reducing dependence on fossil fuels and waste disposal costs.

The main feedstocks that can be processed include:

Source-separated OFMSW collected through door-to-door collection

Commercial food waste

Hotels, restaurants, bars, catering providers and cafés – Ho.Re.Ca.

Expired or non-compliant products

Large-scale retail

Would you like to valorise your organic waste?

Together, we can identify the solution best suited to your requirements.

How OFMSW biogas plants work

OFMSW is a heterogeneous biomass with a high impurity content. An OFMSW biogas or biomethane plant therefore requires dedicated pretreatment systems to remove unwanted materials and ensure process efficiency.

Based on the impurity content and the waste collection method, we select the most efficient reactor configuration, either CSTR or PFR.
When designing an OFMSW biogas plant, it is essential to consider the implementation of:

Pretreatment systems for impurity separation, grit removal and, where required, sanitisation
Post-treatment systems, such as composting to optimise the quality of the solid digestate and aerobic processes to complete the treatment of the liquid digestate.

The energy generated can be used directly in on-site operations or exported to the national grid. Biomethane, on the other hand, can be injected into the gas grid or used as a transport fuel.

Environmental benefits of an OFMSW plant

An OFMSW plant enables organic waste recovery and therefore drastically reduces the amount of waste sent to landfill or incineration.

Anaerobic digestion enables:

Valorise the digestate by separating it into:
– Liquid fraction, which can be treated using technologies such as ultrafiltration, reverse osmosis or evaporation prior to discharge into receiving water bodies
– Solid fraction, intended for biostabilisation and conversion into composted soil improver
Reduce odour emissions and improve leachate management
Ensure a treatment chain compliant with environmental and regulatory standards

Economic benefits of an OFMSW plant

An OFMSW biogas plant provides a tangible opportunity to generate economic value from organic waste.

The main economic benefits include:

Production of electricity, heat or biomethane for on-site use or sale
Lower energy procurement costs
Reduced waste disposal costs
Profitable integration into a circular economy model

An OFMSW plant can turn a challenging waste stream into a strategic resource, delivering long-term benefits for both the company and the environment.