New Build Composting Facility in Saudi Arabia 
Averda's Sustainable Waste Management Endeavor

Facility components

Christiaens Group is responsible for constructing the climate control system for the composting process. For this facility we have an “In Vessel Composting” (IVC) process for organic solid waste which runs automatically, following different “composting phases”. The process begins with an aerated floor where compost is placed in the tunnel. An advanced air and climate control system raises the temperature to 70+ degrees Celsius, optimizing the composting process.

The odorous exhaust air is then treated in the air treatment system and processed through the wet filtration system of the air scrubber, followed by the bio bed before to be released into the atmosphere.

Within the tunnel is a state-of-the-art dirty water leachate system. All collected “dirty” water is screened and stored in a separate pit which can be reused for spraying tunnel input materials during initial filling or transferring. 

After composting, the waste undergoes screening, separating larger pieces (such as tree trunks, which compost at a different rate than food organics). The coarse material is mixed again and reintroduced into the tunnel, while the remaining product is prepared for further processing.