Calimera Biogas Plant – High Gas Yield with OMSW Waste and Low Energy Consumption
Arciplug®’s biogas plant in Calimera, Italy, is designed to process challenging organic municipal solid waste (OMSW) with high levels of contamination. The facility utilizes advanced PLUG FLOW technology to achieve outstanding biogas yield and remarkably low electricity consumption.
With Arciplug® PLUG FLOW technology, a wide range of complex feedstocks can be processed efficiently—even those with high impurity levels. The system’s flexibility supports stable operation and excellent methane production, making it ideal for municipal waste streams. An integrated gas storage system ensures optimal energy management and system resilience.
This biogas plant contributes to local climate goals by significantly reducing methane and carbon dioxide emissions. Instead of landfilling or incineration, organic waste is converted into renewable biomethane, which replaces fossil fuels while also supporting circular economy targets.
Arciplug® is responsible for the process design, automation, and reactor engineering, while Anaergia acted as the EPC contractor. This collaboration enabled a streamlined delivery: the plant was contracted in August 2020, commissioned in May 2022, and completed with only five months of on-site construction.
Key technologies
Delivery included a plug flow reactor and additional equipment for Calimera biogas plant.
Digester feed: raw material is pre-selected SSO. Plant processing capacity 19,905 tons/year and 54,5 tons/day.
Biogas yield 2,464,900 Nm3/A with energy content of 23,910 MWh/A.
Pre-manufactured wall elements, frames, beams, pylons, mixing arrays, valves etc.
Arciplug®’s scope of design and delivery for the Calimera project includes the following areas:
Technology and design
Process design, architecture, building, electrical and automation planning.
Project Management
Managing and supervising the project, material acquisition and bidding.
Manufacturing and assembly
Including the Arciplug biogas plant reactor units.
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