Transcript Presentation Title

Point-of-Use Water Systems:
The Landscape
Dr Jo Burgess
2nd October 2012
Physical landscape
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Research landscape
Peaks of expertise exist:
Durban University of
Technology
Council for Scientific and
Industrial Research
University of Venda
University of the Western
Cape
University of Johannesburg
Tshwane University of
Technology
Stellenbosch University
Some successes
Lots more to do
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Durban University of Technology
Remote Rural Water
Treatment System
(RRWTS)
Simple gravity-driven
microfiltration unit
Removes suspended solids,
colloids and 95% bacteria
from raw water, gives a
clear permeate which can
be easily disinfected
Lab prototype  small
scale manufacture 
community-based testing
in KZN / E Cape
borderlands
Easy to use…
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Council for Scientific and Industrial
Research
Advantages
Accompanying hygiene
education programme.
All-in-one treatment
(coag/floc, clarification,
filtration, disinfection).
Locally manufactured.
Some success, fell into
disuse
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University of Venda
Evaluation of numerous POU
devices (Centres for Disease
Control and Prevention (CDC),
Potters for Peace (PfP), etc.)
Thorough, multidisciplinary, highly
collegial
Patel Smart Pot Grand Challenge
entry
Avoid problems observed with
CDC, PfP, etc. designs
Better covers, seals, stands. Lid =
washing container for filter.
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University of the Western Cape
Environmental chemistry /
technology
Patel Smart Pot Grand Challenge
entry
Applying PfP principles to local
materials
Zeolites & coal fly ash
Locally mixed, pressed, dried and
fired ceramic filters
Impregnated with silver, thus
includes disinfection
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University of Johannesburg
Patel Smart Pot Grand Challenge finalist:
one of only four worldwide.
Water and health research focus;
microbiology & molecular biology
Backed up by community-based
evaluations
Thorough, multidisciplinary, highly
collegial
Developed in collaboration with
industrial designer
Single container for treatment and
storage of water
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Tshwane University of Technology
Comparative evaluation of
many types of filters:
Ceramic, w & w/out silver
Biosand, w & w/out zeolite
Clay pots, w & w/out silver
Multidisciplinary projects
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Stellenbosch University
Solar
geyser
Photovoltaic
panel
Roof assembly
Superstructure
Finishes
RWH
Tank
Services
Substructure
Numerous projects:
Nano “teabag”
Kleinmond housing disinfection systems
for domestic RWH
tanks
Multidisciplinary,
many collaborations
Filtration cartridge system
Physical filtration, sorption, and biocidal action
Nanofibre based filter with carbon
For immediate use (no storage)
Comparison to solar pasteurisation
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In summary
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