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Eggersmann awarded innovative drying system contract for MBT plant in Iraq

A newly developed system by Germany-headed Eggersmann Group for drying of municipal solid waste (MSW) is being put into service for the first time at a Mechanical- Biological Waste Treatment plant (MBT) in Iraq. Amongst other things, the MBT plant will produce refuse-derived fuel (RDF) for use in a cement plant. Contracts for the delivery were signed with the client, Faruk Group Holding, an Iraqi industry and construction conglomerate in December 2018 in Sulaymaniyah, Iraq.

Schematic of the drying process phase of the Sulaymaniyah MBT plant in Iraq. The BACKHUS CON system is a combination of the membrane-covered CONVAERO process and the self-propelled BACKHUS turner (image courtesy Eggersmann).

Schematic of the drying process phase of the Sulaymaniyah MBT plant in Iraq. The BACKHUS CON system is a combination of the membrane-covered CONVAERO process and the self-propelled BACKHUS turner (image courtesy Eggersmann).

The Faruk Group is currently constructing a mechanical-biological waste treatment (MBT) plant in Sulaymaniyah for the production of alternative fuel (RDF) from 1 040 tonnes per day of municipal solid waste (MSW) and commercial waste. The RDF produced will be used in the group’s own cement plant. This large-scale project also includes a sanitary landfill with leachate collection for the processing residues.

Drying process

Faruk assigned the Eggersmann Group with the planning, supply and commissioning of the biological drying process phase. According to Eggersmann, the deciding criteria were mainly the process reliability and commercial efficiency. The scope of supply also includes a stationary primary shredder.

With this latest development of its proven technologies and components for biological drying and composting, Eggersmann is bringing the treatment of organic waste and MSW to a new level. The innovative BACKHUS CON system is a combination of the membrane-covered CONVAERO process and the self-propelled BACKHUS turner. With moderate investment costs, the site operation is cost-efficient and low on emissions.

A total of 22 drying lanes with aeration and membrane cover are being built on 40,000 m² of land at Sulaymaniyah, northern Iraq. Each lane has a capacity of 2 600 m3 MSW and will be fitted with aeration and process control.

The BACKHUS CON 100 is the world’s largest turner with an effective operation width of 10.0 m and a total width of 14.5 m. It is fitted with tracks to run along the outside of the lane walls, while the waste will be turned within the lanes.

In addition, the BACKHUS CON is equipped with two membrane cover winders to simultaneously winding and unwinding membrane covers during turning. Since the system is effectively closed during turning, this method is particularly suitable for sites where emissions are a critical issue.

A further advantage of the system is the short processing time. Even materials with a high moisture level and high density can be efficiently composted or dried.

Frontend shredder

At the front end of the treatment process at the Sulaymaniyah MBT, an Eggersmann single-shaft TEUTON ZS 55 shredder ensures continuous shredding and uniform discharge of shredded waste to the conveyor systems towards the drying area. One TEUTON ZS 55 in two-shift operation is sufficient to cover the sites’ daily throughput.

The plant is designed for an annual throughput capacity of 380 000 tonnes. The plant will be in operation seven days a week with two operation shifts and one cleaning and maintenance shift per day.

The ground works at Sulaymaniyah are already well underway, installation of an aeration system for the drying lanes is scheduled to begin in May 2019. The delivery of the other components and machines is planned to start in June, the warm commissioning is expected to start at the end of the year. The value of the delivery has not been disclosed.

Faruk Mustafa Rasool (left), Executive Board Chairman of the Faruk Group, and Karlgünter Eggersmann, Managing Director of the Eggersmann Group, after the signing of the contract in December 2018 in Sulaymaniyah, Iraq (photo courtesy Eggersmann).

Faruk Mustafa Rasool (left), Executive Board Chairman of the Faruk Group, and
Karlgünter Eggersmann, Managing Director of the Eggersmann Group, after the
signing of the contract in December 2018 (photo courtesy Eggersmann).

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