Water · Healthcare · Borehole treatment and boiler-water softening
Project snapshot
| Client | Helen Joseph Hospital, Johannesburg |
| Location | Johannesburg |
| Sector | Healthcare |
| Pillar | Water |
| Scope | Borehole-water treatment skid plus a separate boiler-room softening system |
| Capacity | 10,000 L/h hospital water-treatment plant (2025 replacement design) |
| Treatment technology | UV, AFM filtration, activated carbon, Katalox media and sodium-hypochlorite residual disinfection; separate ion-exchange softening for the boilers |
| In production | Both new systems by late July 2025 |
| Support | Five-month service and chemical-supply agreement after commissioning; service visits and chemical supply continued into January 2026 |
The challenge
Helen Joseph Hospital uses borehole water, and has a boiler room that needs treated water. The earlier treatment plant had deteriorated through inadequate maintenance, and the boiler water treatment was no longer functional. The hospital needed a replacement treatment skid and boiler treatment.
The solution
Biozone recommended replacing the treatment skid and the non-functional boiler treatment, and in July 2025 proposed an engineered replacement covering both:
- Hospital water: a borehole-water treatment plant designed for 10,000 L/h, combining AFM filtration, activated carbon and Katalox media with UV disinfection and a sodium-hypochlorite residual.
- Boiler water: a separate ion-exchange softening system for the boiler room.
- Operation and support: automatic backwash equipment, with maintenance and chemical supply under the service agreement.
The results
- Both new systems were in production by late July 2025.
- A five-month service and chemical-supply agreement was approved following commissioning, and service visits and chemical supply continued into January 2026.
- Biozone’s original plant, dating from about 2021, had treated more than 600 million litres before its replacement.
Design intent
The replacement systems are designed to support hospital water availability, improve borehole-water quality and reduce boiler scale. Using borehole water can reduce the hospital’s demand on the municipal supply, and softening can help preserve boiler heat-transfer efficiency.
Talk to us
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Request an application assessment with a Biozone engineer
[email protected] · +27 67 972 2169 · +27 11 791 4403 · www.biozone.co.za
Unit 2, Northlands Production Park, Epsom Avenue, Hoogland, Randburg 2162
Biozone Manufacturing (Pty) Ltd · A South African engineering company · 25 years in business
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