Current projects

From compelling conviction to technical mastery. We look back at a trenchless adventure! Via Veolia, the Rodez Local Area Authority (8 municipalities) called on DPSM in September 2020 for the collapse of a sewage pipe (200mm-diameter) under a private housing estate in the Luc-la-Primaube district. This promised to be a complex project for many reasons: Its location in a privately owned area Its depth of over 3m The 4m-length of the collapsed pipe The presence of asbestos Bursting, a solution to be agreed on On paper, busting appeared to be the best solution for the execution of these works without… +

In the wake of the COVID pandemic, SNF, the flagship of France’s chemical industry, reviewed its economic approach to polymer production. It turned to greener production, geared towards cardboard manufacturers, with new water-soluble polymers which help to reduce raw material needs. Extension works were thus carried out to its plant in Dunkirk port, with the building of a first production unit for these new polymers. The Hauts-de-France RD (Dunkirk Agency) laid the underground networks on the site, which, given the constraint of the water table, consisted in: 45,600m³ of excavation works Laying of more than 4km of stormwater network (315mm-diameter… +

Veolia and SADE have joined forces to provide an innovative and ethical solution to reusing treated wastewater to supply drinking water to districts in the department of Vendée. Circular water recovery programme Its aim is threefold: to provide an additional solution in areas with high demand in summer and where there is an imbalance in conventional resources, to operate a circular system of water use by sending treated wastewater to reservoirs rather than discharging it into the sea, and to validate the refining process to obtain very high-quality water and demonstrate its safety for the receiving environment. Rather than being… +

… to protect the environment at Collins Aérospace As part of its efforts to develop the industrial market, the Paris Regional Division won a contract with Collins Aérospace in Antony (in the Hauts-de-Seine department) The site specialises in the maintenance and manufacture of fire-protection systems for helicopters, tanks and aeroplanes. An inspection by the Regional and Interdepartmental Office of the Environment and the Energy of Ile-de-France (DRIEE) revealed non-conformities with regard to classified industrial facilities for environmental protection. This prompted the Franco-American firm to call on SADE, which it identified thanks to its brand-new website! The survey submitted by the… +

for the city of Nantes, which is burying its high-voltage lines as part of commercial venture.  MESIL (which stands for ‘mise en souterrain par initiative locale’ – placing networks underground at the initiative of local authorities) is the name given by RTE (the Electricity Transmission Network) to projects undertaken at the request of local communities. In the Beaujoire neighbourhood, at the request of the city of Nantes, SADERTELEC is undertaking two MESIL projects for RTE to bury overhead lines in this area to allow for the expansion of a shopping centre. MESIL 1 – a tricky business… RTE commissioned SADERTELEC… +

for an easy-peasy solution that has made all the difference! Frozen-veg specialist GELAGRI entrusted SADE with the rehabilitation of the process-water equalising tank at its production site in Loudéac, Côtes d’Armor. A huge project whose timescale depended on the ripening of peas. Proposal of a customised solution To ensure both the water-tightness of the 6,000m3 tank and the recovery of the considerable amount of matter suspended in the vegetable washing water, SADE Engineering and the Rennes Regional Division designed and sized a decanting channel comprising a damping chamber and two decanting compartments that are successively refilled by overflows, over the… +