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Protect the oceans

Every year, 8 to 12 million tonnes of plastics and micro-plastics are dumped into the oceans. The safeguarding of the oceans is played out on land. Today we command the technologies to collect, recycle and recover plastics and wastewater. To transform this waste into resources is to enter into the circular economy. Thanks to this new model, the preservation of the oceans becomes possible.

Our commitment

Using SUEZ's knowledge to protect the oceans

Preserving the world’s oceans is a major commitment which is included in the new 2017-2021 Sustainable Development Road Map. Located at the center of water and waste challenges, we today use our expertise to help shape local public policies that limit pollution of the marine environment by human activity. Thanks to its overall vision, we can supply our customers with tangible solutions that limit terrestrial sources of pollution by changing the conception of the waste life cycle to a more circular model and by making the cities’ water networks more intelligent.

  • Our expertise in water and plastic waste treatment to develop solutions to reduce pollution that originates on land
  • A comprehensive logistics network as a result of our presence in numerous regions
  • Constantly evolving solutions thanks to our innovativeness and research network
Our actions

Supporting ocean protecting organizations’ initiatives:

Scientific expeditions

We work alongside a group called the Expédition 7ème Continent and Expédition MED. Through expeditions, the former in the Pacific and Atlantic oceans and the latter in the Mediterranean Sea. The objective is to study the scope of plastic pollution in the oceans, secure media coverage of the phenomenon to alert the international community and launch concrete initiatives.

Good Planet

We’ve partnered with Good Planet, dedicated to combating threats to the oceans through awareness initiatives such as beach clean-ups and the creation of awareness-rising materials and encouraging community involvement.


Since 2015, we have also been committed to UNESCO’s intergovernmental oceanographic commission with the goal of implementing tangible solutions that help bringing an end to ocean pollution.

Our solutions

We offer solutions to control water quality, limit pollution sources, including plastic waste in particular, and protect and restore coastlines. Here are a few examples:

Fighting water pollution by micro-plastics

While treatment plants represent a barrier to water pollution, certain types of pollutants are able to get through traditional filtration systems. This is the case with the microfibers used in our clothes. Thus, we launched Ecoseastem, the first ever research program that looks into pollution by microfibers. Operating a purification station at Nice-Haliotis, we teamed up with the Nice Côte d’Azur city authorities, the MED Expédition NGO and the Villefranche oceanographic laboratory.
The aim of the programme is to characterise the pollution caused by plastic microfibers, to assess the impacts of this pollution on the natural ecosystem and to identify the best available technologies to treat this type of pollution, such as dynamic microfiltration.

Controlling discharges of wastewater and rainwater into the natural ecosystem

AQUADVANCED® Urban Drainage proposes a step-wise offer to optimally and transparently manage sanitation systems. The range offers operators and local authorities an all-inclusive tool to protect the environment, people and property, while also achieving an optimal economic balance by anticipating risks of flooding and pollution, protecting the natural environment, cutting operating costs and making use of existing assets and past investments.

Collecting plastic bottles

80% to 90% of the plastic found in the oceans is made of polyethylene, a type of plastic frequently used for packaging. To prevent this waste from ending up in the sea, around 100 supermarkets in France have been transformed into collection centres thanks to the Reco® solution. Residents are invited to drop off their plastic bottles and containers in the car park of their local store in exchange for vouchers. The containers are then sorted and recycled and given a second life. Another good example of the circular economy is Head & Shoulders which has created the world’s first recyclable shampoo bottle made from beach plastic.

Setting up a pollution control barrier to restore coastlines

The coastline of Casablanca (Morocco) is one of the most industrialiszed in the country, generating pollution mainly due to discharges of raw sewage into the sea. We provided the city with assistance in building the new pollution control system, which is now used to treat all of the city's sewage. 24 kilometres of coastline are now protected and the beaches have been returned to the residents.

Monitoring sea water quality

In Barcelona (Spain), the municipality has installed the COWAMA water quality monitoring system along the city's beaches. This control system is used to identify the main sources of pollution, in real time and to anticipate water quality along the beaches. Using the iBeach app, this information on water quality can be sent to citizens who want to see the water temperature, flag colour, UVA radiation level and even whether jellyfish are present.

Monitoring sensitive zones with drones

In Barcelona, we are running an experiment that consists of using drones to monitor sensitive zones in the region, polluting emissions, confined spaces, water masses and the coastline. When the drones are equipped with thermal cameras, they help us to better understand the interactions between water quality along the coast and human activities that could impact the quality of bathing water.
Join the movement

A worldwide initiative to collect waste on beaches and in rivers

Our suez4ocean web site is inviting as many people as possible (citizens, organisations) to organise and take part in plastic waste collections on coastlines and in catchment basins.


We have also started to engage with all the stakeholders, so that every one of them contributes to the conservation of our oceans. This is why we are working with international institutions and NGOs to take action in favour of our oceans (UNESCO IOC, Expedition Med, Expedition 7th continent, the GoodPlant Foundation).

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