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2. Umgodi Manzi
Drinking Water System
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3. Introduction
• In terms of the Mine Health and Safety Act
(MHSA), the mining sector has an obligation
to supply quality drinking water to all its
employees.
• This act also requires that the water is readily
accessible, and consistently available.
• Mine Health and Safety Act makes reference
to compliance with any other standard of
which “SANS: 241” is more relevant in the
case of water quality.
• Since the service water, that is readily
available at most mines does not comply with
the requirements for drinking water as
described in SANS: 241, a decision needs to
be made to install systems that can provide
adequate drinking water which complies with
the required standards at all working places.
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4. Background
Due to the scattered and temporary nature of the
working places in the South African underground
mining industry, it was decided by Germ Africa
to design an unit that can easily be removed and
transported to a new working place.
In a combined effort, Trackless Support Services
CC and Germ Africa (PTY) Ltd developed and
built a prototype, called the Umgodi Manzi Water
System for evaluation.
• The prototype was installed at Sibanye Gold Driefontein.
• A series of tests were conducted
• The results were evaluated according to the standards set
out by the “Potable Water Quality Management Standard”
for Sibanye.
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5. Description
The Umgodi Manzi Water System was
developed with the aim of adhering to the
following specifications:
• Deliver drinking water that complies with
SANS:241.
• User friendly and robust system.
• Compact and easy to handle and transport.
• No electricity or other power source required.
• Cost effective.
The compact Umgodi Manzi filtration system consists of
a water inlet port, pressure stabilisation, the filtration
system, storage tank(s) and tap(s) contained in a portable
enclosure has of four handles to ensure that four people
can carry the unit with ease.
See the dimensions on the following page.
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6. Features
UM Model Storage Tanks Taps Physical Dimensions
(mm)
UM-14 1 x 24 litre 1 Tap 1100 high x 600 long x 450 wide
UM-28 1 x 24 litre 1 Tap 1100 high x 700 long x 450 wide
UM-56.1 1 x 60 litre 2 Taps 1100 high x 1500 long x 450 wide
UM-56.2 2 x 60 litre 2 Taps 1100 high x 1500 long x 450 wide
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4 x Carry Handles
1” Inlet
4 x Legs
(for ground clearance)
2 x Dispensing Taps
7. DATE ACTION
30 Oct Prototype Installed Sample
31 Oct -
01 Nov -
02 Nov -
03 Nov Sunday
04 Nov -
05 Nov -
06 Nov Sample
07 Nov -
08 Nov -
09 Nov -
10 Nov Sunday
11 Nov -
12 Nov Sample Sample
13 Nov -
14 Nov -
15 Nov Sample
16 Nov -
17 Nov Sunday
18 Nov Sample
19 Nov -
Testing
The following test were carried out:
• Umgodi Manzi was installed at 7#,
Sibanye Gold.
• Water samples were taken from the
service water supply as well as from the
Umgodi Manzi System. These were
marked with date, time, location,
service/Umgodi Manzi Water System and
temperature.
• One sample was sent for a full analysis.
• Other samples were sent for uranium,
salinity, pH and turbidity analysis.
• A sample was sent bi-weekly for E-coli
and Agar Plate count.
Testing
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DATE ACTION
20 Nov -
21 Nov -
22 Nov -
23 Nov -
24 Nov Sunday
25 Nov -
26 Nov Sample
27 Nov Filter Change-out
28 Nov -
29 Nov -
30 Nov -
01 Dec Sunday
02 Dec -
03 Dec -
04 Dec -
05 Dec -
06 Dec -
07 Dec -
08 Dec Sunday
09 Dec -
10 Dec -
11 Dec Sample
Sample – Umgodi Manzi
Sample – Mine Service Water#
8. Results
Analysis Service Water
24.5°C 12:15
%Reduction
UM System
24.5°C 12:10
End-Result
Analysis Service Water
24.5°C 12:15
%Reduction
UM System
24.5°C 12:10
End-Result
Salinity (EC, mS/m) 91.29% 7.21 Manganese (Mn mg/l) n/a 0.003
Fluoride (F mg/l) 64.28% <0.10 Nickel (Ni mg/l) 87.50% 0.015
Chloride (Cl mg/l) 72.68% 6.228 Lead (Pb mg/l) n/a <0.042
Nitrate (NOᶟ mg/l) 77.13% 2.229 Strontium (Sr) 94.67% 0.014
Phosphate (PO4 mg/l) n/a <0.30 Zinc (Zn mg/l) n/a 0.011
Sulphate (SO4 mg/l) 98.29% 4.892 Uranium (U238 mg/l) 99.35% 0.001
Calcium (Ca mg/l) 93.37% 5.760 pH 11.12% 7.35
Magnesium (Mg mg/l) 97.61% 1.270 Alkalinity 89.49% 18.1
Sodium (Na mg/l) 92.65% 4.490 Total Dissolved Solids n/a n/a
Total Harness (mg/l) 95.41% 20
Aluminium (Al) 33.33% <0.028
Barium (Ba) 84.21% 0.003
Cadmium (Cd) n/a <0.003
Cobalt (Co) 73.07% <0.007
Chromium (Cr) n/a <0.007
Copper (Cu mg/l) n/a 0.006
Iron (Fe mg/l) 28.57% <0.005
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9. The Team
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Germ Africa (Pty) Ltd Trackless Support Services
Don Mulinder Brian Wood
Managing Director
Germ Africa
Designed the Aqua-Manzi
Drinking Water system some 18
years ago
Managing Director
Trackless Support
Services
Will service the “Umgodi-Manzi”
system once installed
Lambert Le Roux
Technical Sales Executive
Trackless Support
Services
Responsible for the assembly
of the “Umgodi Manzi” system
Technical Sales Executive
Germ Africa
Involved with the technical aspects
and trials preformed on the
Umgodi Manzi system.
Kobus Louw
10. The Companies
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Trackless Support Services CC
Germ Africa (Pty) Ltd
Company Profiles:
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