Executive project brief
The challenge
The logistics hub required substantial water for cooling and truck washing, creating high municipal-water costs and a need for a more resilient supply strategy.
Hydraulic duty500 KLPD combined greywater and rainwater system
Water streamWater
Operating contextDistribution and logistics
Required destinationCooling towers and truck wash bay
Solution architecture
The following elements are documented in SewTreat’s published project record.
- Three-million-litre rainwater collection dam
- One-million-litre underground treated-water sump
- Rainwater treatment supplying up to 300,000 litres daily
- Biological washbay-water treatment processing 150,000 litres daily
Engineering assurance
Characterise
Validate the water profile, duty and variability.
Integrate
Define civils, power, controls, storage and existing interfaces.
Operate
Plan access, skills, residuals, consumables and maintenance.
Verify
Agree commissioning, sampling and acceptance evidence.
Published outcome
Published case-study claim: R4.7 million annual saving.
What the project demonstrates
- Municipal-water displacement
- Integrated rainwater and wastewater reuse
- Lower operational water exposure
- Published cost saving
Before procurement
- Representative water analysis completed
- Average, peak and future flows validated
- Required standard and destination made explicit
- Civils, utilities, storage and distribution interfaces defined
- Operating and maintenance model resourced
- Commissioning evidence and acceptance criteria agreed
Source: Pick n Pay Case Study. Financial and performance figures are attributed to SewTreat’s published case-study material.
