Current projects

A multi-network, multi-technique project for SNF, the specialist in polymers for the petrochemical sector

7 September 2021
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… +

SADE Special Works’ finest manholes for the SIAAP north-east outfall

30 August 2021
To transport wastewater to its pre-treatment and treatment facilities, the Greater Paris Sanitation Authority (SIAAP) manages a 440km network composed primarily of outfalls with manhole access. The rehabilitation of 11 manholes, along the north-east outfall, was entrusted to SADE Special Works. A similar task across the board… For 10 manholes of 20m to 65m in depth, all equipped with a concrete staircase, SADE Special Works’ task was to clean, purge coatings, apply a special mortar for hostile environments and, where necessary, replace or install safety features such as handrails. …with… +

A new market in Romania

23 August 2021
Design and building of a new mineral water production plant! Romania is home to more than 60% of Europe’s mineral water resources and is the EU’s 5th biggest producer of natural mineral water. Founded in the 19th century, Biborteni is one of Romania’s leading mineral water producers and a key local market player. The company has nevertheless remained on a human scale and produces limited quantities of high-quality mineral water. Biborteni wished to double the production of its Covasna plant in Romania and planned to build a new water treatment plant with a capacity of 15 m³/ hour, in the… +

The Jourdain programme explained

22 July 2021
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… +

Making sure fire-fighting water storage is compliant

20 July 2021
… 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… +

Laying cables

15 July 2021
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… +

Rehabilitation of the sanitation networks on Esplanade Saint-Gervais in Rouen

28 June 2021
SADE and SAT working well together! The Rouen Normandie Metropolitan Authority has appointed a SADE (agent)-SOGEA consortium to rehabilitate the wastewater and stormwater networks on Esplanade Saint-Gervais in Rouen. This area on the banks of the Seine – used regularly for major events, such as trade fairs, funfairs, exhibitions, etc. – is now a huge construction site working to a tight timescale. Comprehensive collection The main objective is to be able to collect and pre-treat – by means of temporary connection points, a new network and associated works – all… +

A customised decanting channel

24 June 2021
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… +

DPSM pull out all the technical stops

16 June 2021
In Béziers, as part of the rehabilitation of a section of the town’s sanitation network. The Béziers Méditerranée Urban Authority has accepted DPSM’s solutions for the rehabilitation of a visitable segment of its sanitation network located right next to the mainline rail station and partly beneath its tracks. A strategic but congested main sewer This section is part of a mains sewer that transports just over half of all the town’s wastewater. A fact that led to the installation, during the works, of a by-pass with a capacity of 600m³/h. The DPSM teams… +

An innovative dais!

10 June 2021
The Paris Regional Division (SADE Services agency) is building an original test installation on La Défense plaza for Veolia. A refreshing dais It centres on a 196 m² (14 x 14 m) dais installed at the foot of the Great Arch of La Défense, which, in summer, will refresh passers-by via a water evaporation system. Seureca and Veolia Research & Innovation (VERI) came up with the concept. An original structure The structure will be temporary, for the summer only, and will take the SADE Services agency team two weeks to build, including constructing a wooden surround, installing a small-diameter pipe… +