Water · Borehole water treatment · Filtration, stabilisation and disinfection
Industry: Aviation maintenance and engineering
Treatment technology: AFM filtration, bag filtration, UV, pH correction, catalytic filter media and carbon, with ozone for the raw-water tank
Scope: assessed, designed, built, delivered and installed by Biozone
Project snapshot
| Detail | Project |
|---|---|
| Client | Dynamic Propellers |
| Location | Hangar 7, Rand Airport, Germiston, Gauteng, South Africa |
| Industry | Aviation maintenance and engineering |
| Pillar | Water |
| Water source | Runs full time on treated borehole water |
| Water use | Business operations, drinking and cleaning |
| Biozone scope | Site assessment, system design around the client’s water analysis, build at the Biozone head office in Randburg, delivery and installation |
| System | Skid-mounted borehole filtration, water-stabilisation and disinfection system |
| Design treatment flow | 2 m³/h (2,000 L/h) |
| Ozone | Ozone generator for the raw-water tank, specified at 5 g/h |
| Raw water | Turbidity of 50 NTU, manganese, E. coli and coliform contamination, and a strongly negative LSI |
The challenge
Dynamic Propellers, an aviation maintenance and engineering business at Hangar 7, Rand Airport in Germiston, runs full time on treated borehole water from a Biozone treatment system for its day-to-day needs, including business operations, drinking and cleaning. The raw borehole water had several issues at once: turbidity of 50 NTU, manganese, E. coli and coliform contamination, and a strongly negative Langelier Saturation Index (LSI), which means the water tends to be corrosive (aggressive). The treatment system had to be designed around these combined issues.
The solution
Biozone assessed the site and designed the system around the client’s water analysis. Biozone then built the skid-mounted borehole filtration, water-stabilisation and disinfection system at its head office in Randburg, delivered it and installed it at Hangar 7. The system has a design treatment flow of 2 m³/h (2,000 L/h) and is designed to treat the borehole water for business operations, drinking and cleaning.
– Treatment train (design sequence): pre-filtration and a raw-water tank, then a feed pump, two AFM vessels, bag filtration, UV, pH correction, catalytic filter media and carbon, then a treated-water tank.
– Ozone: an ozone generator, specified at 5 g/h, for the raw-water tank.
– Treated storage: submersible UV in the treated-water storage.
– Multiple barriers: the stages are designed as multiple barriers for sediment, metals, corrosivity and microbial contamination.
– Monitoring and control: pressure gauges and an electrical control panel.
Client benefit
The system is designed to improve borehole water quality, to help reduce staining and corrosion, and to support water availability on site for business operations, drinking and cleaning.
Sustainability
The system is designed to make use of the site’s existing borehole supply.
Design basis
- Skid-mounted borehole filtration, water-stabilisation and disinfection system, designed for 2 m³/h (2,000 L/h), built at the Biozone head office in Randburg
- Pre-filtration and raw-water tank, then feed pump, two AFM vessels, bag filtration, UV, pH correction, catalytic filter media and carbon, then treated-water tank
- Ozone generator for the raw-water tank, specified at 5 g/h; submersible UV for treated storage
- Pressure gauges and an electrical control panel
- Designed around raw water with 50 NTU turbidity, manganese, E. coli and coliform contamination and a strongly negative LSI
Safety note: For unoccupied spaces or enclosed water treatment systems only. Ozone should not be inhaled.
About Biozone water systems
Biozone systems are installed, maintained and serviced by Biozone. Water testing parameters follow SANS 241.
Biozone can help homes, schools, hospitals and businesses that want to run on treated borehole water, with treatment designed around each site’s water analysis.
Looking at water supply for your own site? Read about our backup water systems for businesses in Gauteng.
Talk to us
Using borehole water on site, or planning to? Request an application assessment with a Biozone engineer. It’s free.
[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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