Rainwater Harvesting

What Sewtreat Does

SewTreat designs and implements rainwater harvesting systems tailored to each facility’s catchment area, available storage space, and water demand. Our systems ensure the effective capture, treatment, and reuse of rainwater for process, irrigation, or potable applications.

Our Scope Includes

Roof and surface catchment system design
Storage system design (aboveground or belowground)
Rainwater treatment and disinfection systems
Integration with facility reticulation and monitoring systems
Turnkey supply, installation, and commissioning
Rainwater Harvesting WT 3
Rainwater harvesting water treatment plant 1
Rainwater Harvesting WT 1

Typical Water Treatment Process

Rainwater is collected from suitable roof areas and conveyed through a filtration and treatment process to ensure it meets the required water quality standards. A typical SewTreat rainwater harvesting system includes:

Pre-filtration: Removal of leaves, dust, and debris before entering storage.
Storage: Zincalume steel or concrete tanks ranging from 15 KL to 3 ML, available in various finishes for aesthetic and durability requirements.
Treatment: GFM (Glass Filter Media) and GAC (Granular Activated Carbon) filtration followed by disinfection to ensure water safety and quality.
Distribution: Pumped supply to irrigation networks, toilets, domestic line or process applications.

SewTreat rainwater harvesting solutions are ideal for facilities with large roof areas and available storage space, providing a sustainable alternative or supplement to municipal supply while supporting long-term water resilience.

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