What we do

Challenge

The discharge channels of the steel plant of ArcelorMittal in Taranto function as a sedimentation basin where the suspended solids are removed from the water (= process + cooling + rainwater) coming from the steel plant before it flows back into the Ionian Sea. The channels need to be dredged periodically (every 5 to 6 years) in order to comply with Italian environmental discharge legislation. They were last dredged in 2005 so were fully loaded with sediments, which needed to be removed in the most environmentally friendly way.

Solution

DEME proposed a hydraulic dredging technique in a direct combination with a soil wash, dewatering installation to remove the sediments. We dredged the sediments hydraulically by a dredge pump with a cutter or auger head mounted on an excavator standing on a pontoon in Channel 1. A smaller dredge unit was deployed in Channel 2. We treated the sludge coming from the dredge unit directly in a soil wash plant where the sediments are separated from the water. The water was pumped back into the channel after we had treated it by using a water treatment plant. The project ran smoothly and we achieved high production rates of 500-600 m³ a day. The sediments that were separated in two fraction fines and sand were disposed of in an approved landfill.

In total around 60,000 m³ of in situ silt had to be dredged from the three channels.

Used technology

Mobile treatment plants

Related jobs

All jobs

Technical Engineer

As a Technical Engineer, you will play a critical role in the planning and preparation of technical challenges, ensuring efficient execution and continuous improvement of operations. You will combine analytical problem-solving, technical expertise, and teamwork to support multiple vessels, gaining exposure to diverse vessel types and challenges.

DEME General

Technical

Belgium

See details

Operational buyer

The Operational Buyer is responsible for the execution, monitoring and aftercare of the purchasing process and managing the purchasing administration, within the guidelines and procedures of the department, in order to support the department and the internal customer(s) for the timely processing of requests and purchase orders. Focuses on account quality, lead time, on time in Full delivery, customer satisfaction, supplier management and optimization of the Total Cost of Ownership.

DEME General

Supply Chain / Procurement

Belgium

See details

Administrative Support

As an administrative support you will take care of all-round administrative tasks related to our QHSE department.

Dredging

Admin & Support

Belgium

See details

Supply Chain Officer

As the operational right-hand of the Logistics Coordinator, you ensure effective communication and continuity. You maintain close contact with the team and handle administrative tasks related to supply chain and logistics.

The role is a combination of warehouse management, material park operations, and a small portion of transport-related activities, providing a clear overview of the diverse responsibilities involved.

You work closely with the team, monitor processes, ensure safety policies are upheld, and provide support wherever needed. You are responsible for task follow-up, planning, and ensuring that operations are carried out efficiently and safely. Together with the team, you ensure accurate registration of goods receipt, stock management, and the qualitative, complete, and safe shipment of deliveries.

You take the necessary actions with the right priorities in mind. Flexibility, communication, and a strong focus on planning, quality, and safety are key in this role.

DEME General

Supply Chain / Procurement

Netherlands

See details

Warehouse Officer (temporary position)

Als laatste schakel in het logistieke proces zorg je als Warehouse Officer voor de correcte verzending van scheepsonderdelen en verbruiksgoederen naar onze vloot over heel de wereld.

Je plant samen met de transportafdeling de bevoorrading van de schepen via air, road en sea-transporten. Hierdoor sta je in nauw contact met de technische dienst van de schepen, onze interne transportafdeling en de arbeiders die de goederen klaarmaken voor verzending.

Flexibiliteit, communicatie en planning zijn key in deze functie.

DEME General

Supply Chain / Procurement

Belgium

See details

Finance Manager Indonesia

Do you want to turn challenges into opportunities and explore new horizons ? Interested in becoming our new Finance Manager for our Indonesian branch & projects?

DEME is a global solutions provider in a challenging and rapidly changing world and a world leader in the highly specialized fields of dredging and land reclamation, solutions for the offshore energy market, environmental and infra marine works.

Our expertise and vast experience has been deployed over the centuries for Dredging, Environmental and Marine Engineering business solutions such as: port construction and improving maritime access worldwide. We have been creating land for 140 years and will continue to do so in the future.

Therefore we are looking for motivated candidates to reinforce our Finance department at our office in Jakarta.

DEME General

Finance

Worldwide

See details

Immersion Specialist

As an immersion specialist, you will be part of the team responsible for floating and positioning concrete tunnel elements or caissons, equipping them in the port, transporting them from temporary storage locations to the offshore site, and installing them at sea.
In the preparatory phase, you will be involved in the development of operation manuals, work plans, and coordination between teams to ensure smooth execution. In the operational phase, you will be part of the team that performs the immersion activities, ensuring the correct positioning of the elements or caissons on the seabed.

Infra

Engineering

Worldwide

See details

Insurance Administrator

DEME is a global solutions provider in a challenging and rapidly changing world and a world leader in the highly specialized fields of dredging and land reclamation, solutions for the offshore energy market, environmental and infra marine works.

DEME’s Legal Department, situated at DEME’s headquarters in Antwerp (Belgium) and consisting of an extensive and complimentary team of in-house legal and insurance counsels, is looking for a detail-oriented and organized Insurance Administrator to join its team.

In this role, you will be responsible for managing insurance policies, ensuring compliance with industry regulations, and providing excellent support to clients and internal teams. The ideal candidate will have strong administrative skills, a customer-focused attitude, and a solid understanding of insurance processes and terminology.

DEME General

Admin & Support

Belgium

See details