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Saur

Rainwater is a valuable and underutilized natural resource. With the right infrastructure and strategy, rainwater harvesting and management can reduce pressure on freshwater sources, mitigate flood risks, and support sustainable water use for industrial, municipal, and residential applications.

Your challenges

Effectively capturing and using rainwater involves both technical and environmental challenges—especially as climate change increases rainfall intensity and variability.

Increased rainfall variability

Erratic weather patterns are leading to more intense rainfall events followed by prolonged dry spells. This makes stormwater management and rainwater harvesting more complex and critical for climate adaptation.

Flood risks in urban and industrial areas

Impermeable surfaces and aging drainage systems often lead to urban flooding, infrastructure damage, and public safety risks during heavy rains. Efficient rainwater collection systems are essential to reduce surface runoff.

Untapped potential for water reuse

Despite its abundance, rainwater remains largely underutilized. Without proper collection, storage, and treatment systems, industries and cities miss the opportunity to reuse rainwater for non-potable applications like irrigation, cooling, or cleaning.

Regulatory and environmental compliance

Environmental regulations increasingly demand sustainable water management practices, including rainwater harvesting, runoff control, and groundwater recharge. Organizations must comply with these requirements while also enhancing their environmental and ESG performance.

How can the Saur group meet your needs?

Saur supports clients in transforming rainwater from a risk into a resource. Our end-to-end solutions—from rainfall data analysis and hydraulic modeling to system design and maintenance—empower industries and municipalities to capture, store, and reuse rainwater effectively. Whether your goal is to reduce flood risk, cut water consumption, or meet regulatory targets, we tailor rainwater management strategies that align with your operational and sustainability goals.

Our solutions

From smart rainwater harvesting systems and stormwater control infrastructure to digital monitoring tools and nature-based solutions, Saur provides the expertise and innovation needed to integrate rainwater into your sustainable water management strategy.

  • Wastewater
  • Municipal

Solar Trackers

  • Wastewater
Solar Trackers by Saur provide a renewable and autonomous energy supply for water treatment units. This advanced technology uses solar trackers to maximize energy production, ensuring (...)
France and worldwide
  • Wastewater
  • Municipal

AQUA-RM®

  • Wastewater
AQUA-RM® is a patented wastewater treatment process combining activated sludge treatment and flat-sheet immersed membrane filtration.
France and worldwide
  • Drinking water
  • Municipal

Predict’THM

  • Drinking water
Predict'THM is a predictive modelling solution for drinking water quality.
France
  • Wastewater
  • Municipal

Ammonair

  • Wastewater
Ammonair is a solution for Improving the Energy Efficiency of Wastewater Treatment Plants (WWTP).
France
  • Drinking water
  • Wastewater
  • Municipal

Gam&Eau

  • Wastewater
  • Drinking water
Gam&Eau is a cutting-edge solution developed by Group SAUR to optimize the maintenance of your assets with precision and efficiency. This Computer-Assisted Maintenance Management (...)
France and worldwide
  • Drinking water
  • Wastewater
  • Municipal

Trenchless rehabilitation of water networks

  • Drinking water
  • Wastewater
Trenchless rehabilitation is an innovative process that allows the renovation of water pipes to preserve your assets over the long term without any work site disturbance.
France and worldwide
  • Drinking water
  • Wastewater
  • Municipal

EMI

  • Drinking water
  • Wastewater
EMI is a comprehensive solution by Group SAUR that provides intelligible data on the state of water resources. It continuously analyzes potential risks of water supply disruption (...)
France and worldwide
  • Industrial
  • Drinking water
  • Wastewater

AQUA-RM® / CARBOPLUS®

  • Wastewater
  • Micropollutants
  • Drinking water
The AQUA-RM® / CARBOPLUS® combination is the best available technology to effectively treat both pollutants and micropollutants in urban or industrial wastewater.
France and worldwide
  • Industrial
  • Drinking water
  • Wastewater

CLARICARB®

  • Micropollutants
  • PFAS
  • Drinking water
  • Wastewater
CLARICARB® is a drinking water treatment process combining clarification and powdered activated carbon polishing, designed to eliminate both turbidity and micropollutants.
France and worldwide
  • Drinking water
  • Wastewater

Building Information Modeling (BIM)

  • Micropollutants
  • PFAS
  • Drinking water
  • Rainwater
  • Wastewater
The BIM methodology and digital mock-up make it possible to increase the efficiency of a project's design, construction, operation and maintenance. Using digital mock-up, BIM offers (...)
France and worldwide
  • Drinking water
  • Wastewater
  • Municipal

CARBOPLUS® Drinking water

  • Drinking water
  • Micropollutants
  • PFAS
  • Wastewater
CarboPlus® is a patented drinking water treatment process using suspended activated carbon to remove micropollutants.
France and worldwide
  • Wastewater

CYCLAFLUX®

  • Sludge
CYCLAFLUX® is a compact and efficient biological process based on the SBR (Sequencing Batch Reactor) concept, integrating aeration, clarification, and settling within a single (...)
France and worldwide
  • Wastewater

DIGESTHANE®

  • Sludge
  • Wastewater
DIGESTHANE® is an innovative sludge reduction and energy recovery process that enhances anaerobic digestion through ultrasonic pretreatment.
France and worldwide
  • Wastewater

LANODOR®

  • Sludge
  • Wastewater
LANODOR® is a biological deodorization process—efficient, durable, and environmentally friendly—designed for wastewater and sludge treatment facilities.
France and worldwide
  • Industrial
  • Drinking water
  • Wastewater

EQUIFLUX®

  • Drinking water
  • Wastewater
EQUIFLUX® is a high-performance physico-chemical lamella settling process used for drinking water and wastewater treatment
France and worldwide
  • Drinking water
  • Wastewater

CARBOFLUX® Drinking water

  • Drinking water
  • Wastewater
  • Micropollutants
  • PFAS
  • Rainwater
CARBOFLUX® is a patented process designed to address the operating constraints of water types that are difficult to treat, such as water from lakes or reservoirs that are highly (...)
France and worldwide
  • Drinking water
  • Wastewater

CARBOPLUS® Wastewater

  • Drinking water
  • Micropollutants
  • PFAS
  • Wastewater
CarboPlus® is a patented drinking water treatment process using suspended activated carbon to remove micropollutants.
France and worldwide
  • Industrial
  • Drinking water

Water Stress Index (WSI)

  • Source water
Water Stress Index (WSI) assesses the risk of water supply disruption at a production site. It helps prioritize sites for audit in order to secure operations and strengthen assets.
France
  • Drinking water

Sectorisation

  • Drinking water
Sectorisation is a solution for improving the management of Drinking Water Networks.
France
  • Drinking water

Rezo+

Rezo+ is an innovative solution designed to reduce water losses and enhance the performance of your water network. By creating and configuring sectorization zones, Rezo+ measures (...)
France and worldwide
  • Industrial
  • Drinking water
  • Wastewater

Aeroflux®

  • Drinking water
  • Wastewater
Aeroflux® is a dissolved air flotation (DAF) clarification process designed to effectively remove organic matter and algae from surface waters.
France and worldwide

Contact our experts

Contact our experts