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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 NSI 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.

Econvert-DGF
  • Food & Beverage

Anaerobic – Econvert-DGF

  • Resource Recovery
  • Industrial water
  • Wastewater
The Econvert-DGF® (Dissolved Gas Flotation) is an anaerobic solution developed to treat raw wastewater with high concentrations of total suspended solids (TSS) and fats, oils, (...)
  • Municipal

Digital solution – Hydranet

Your challenges Maximizing treatment performance and operational flexibility in limited spaces. (...)
  • Municipal
  • Pulp & Paper
  • Food & Beverage
  • Fish processing
  • Pharma & personal care
  • Mining and minerals
  • Energy

Filter – FlooScreen™

FlooScreen™ screening units are advanced filtration systems designed for industries, communities where high capacities of high-quality water screening is necessary to efficiently (...)
  • Energy
  • Food & Beverage
  • Mining and minerals
  • Semiconductor industry

High Rate Dissolved Air Flotation System

  • Industrial water
NSI HR-DAF, a High Rate Dissolved Air Flotation System removing solids in primary, secondary, and tertiary water treatment within compact spaces.

NSI Digital Platform

Your challenges Continuity of treated water production and wastewater treatment. (...)

Anaerobic – Econvert-RTF

Your challenges Continuity of treated water production and wastewater treatment. (...)

Anaerobic – Econvert-Dsulph

Your challenges Continuity of treated water production and wastewater treatment. (...)

Ammonia stripper – ByoFlex

Your challenges Continuity of treated water production and wastewater treatment. (...)
  • Food & Beverage
  • Fish processing
  • Pulp & Paper
  • Energy

Screw press – NSP

  • Industrial water
The sludge dewatering screw press from NSI (NSP) offers a cost-effective and sustainable solution for sludge dewatering. Designed to treat both primary and biological sludge, the (...)

Membrane – DEEPEST

Your challenges Continuity of treated water production and wastewater treatment. (...)

Membrane – CeraMac

CeraMac® is an innovative ceramic membrane filtration solution, designed to provide robust and sustainable water treatment. By integrating multiple ceramic membranes into a single (...)
  • Pulp & Paper
  • Food & Beverage
  • Municipal
  • Wastewater
  • Pharma & personal care
  • Mining and minerals
  • Energy

Aerobic – FlooBed®

  • Wastewater
A highly efficient and compact biological treatment process to treat a wide variety of industrial and municipal wastewater streams and ensure environmental compliance. The patented (...)

Anaerobic – Econvert-IR

Your challenges Continuity of treated water production and wastewater treatment. (...)

Anaerobic – Econvert-UASB

Your challenges Continuity of treated water production and wastewater treatment. (...)

Anaerobic – Econvert-EGSB

Your challenges Continuity of treated water production and wastewater treatment. (...)
  • Pulp & Paper
  • Food & Beverage
  • Fish processing
  • Pharma & personal care
  • Energy
  • Mining and minerals
  • Municipal

Dissolved Air Flotation – FlooDaf®

  • Process water
  • Industrial water
  • Resource Recovery
  • Wastewater
  • Sludge
  • Drinking water
A high-capacity, compact flotation solution for various large-scale water and wastewater treatment applications enabling raw material recovery, decreased water consumption and (...)

Flocculation-coagulation – ILCA

ILCA  minimizes coagulation/flocculation footprint and simplifies pre-treatment upstream of CeraMac®. Solution is provided by: PWNT – part of Nijhuis Saur Industries

Filter – IntenSieve

Your challenges Continuity of treated water production and wastewater treatment. (...)

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