Belgium – Sewer cleaning services – DIHEC-26-IDELUX-008 : Curage Bassin d'Orage BO1d'Arlon

This services contract concerns the complete cleaning and emptying of the stormwater basin BO1 located in Arlon, on behalf of IDELUX Eau. The services include, in particular: • setting up, preparing and organising the site; • providing all the human, material and technical resources necessary for the execution of the services; • opening the concrete slabs at the level of tracks 1, 2, 3 and 4, in order to allow access and the removal of sludge; • installing removable steel sheet piling in place of the opened slab sections, allowing the tracks to be closed and the operating conditions of the basin to be maintained; • pumping, suctioning, emptying, handling and cleaning the sludge accumulated in the basin; • removing the non-polluted sludge by means of tankers and sealed bins, according to their nature and physical state; • transporting the sludge to the treatment lines or duly authorised centres; • treating and recycling or disposing of the sludge in accordance with the applicable regulations; • cleaning the walls of tracks 1, 2, 3 and 4; • completely cleaning tracks 5 and 6; • cleaning the various surfaces, gutters, structures and equipment affected by the emptying operations; • collecting and managing the water generated by the cleaning and emptying operations; • implementing all necessary safety measures, in particular for interventions in confined spaces and in areas likely to have a dangerous or potentially explosive atmosphere; • implementing all measures necessary to protect the environment, prevent nuisances and ensure the safety of workers; • restoring and cleaning the areas concerned at the end of the services. The amount of sludge to be removed is estimated at approximately 1,500 tonnes. This estimate is subject to change depending on the actual quantities found during the emptying operations. As a guide, the sludge is estimated at approximately 30% in liquid form and 70% in solid form. The quantities listed in the inventory are the estimated quantities used to establish and compare tenders. The successful tenderer is responsible for providing all the human resources, equipment, vehicles, pumping and suction devices, transport and treatment resources necessary for the complete execution of the services. The services are carried out in accordance with the contract documents, rules of the art and all applicable legal and regulatory provisions, particularly in terms of safety, transport and waste treatment, environmental protection and prevention of risks related to confined spaces. The objective of the contract is to allow the complete emptying and cleaning of the stormwater basin BO1, in order to restore its useful hydraulic capacity and to ensure its proper functioning under normal operating conditions. Place of service: Arlon Wastewater Treatment Plant, Route de Neufchâteau 324, 6700 ARLON