Wits Student develops water purification drinking
system for rural households
At just 22
years of age and hailing all the way from the village of Bundu in Mpumalanga,
Busisiwe Mashiane has conducted research to come up with a better way to help
South Africans get water. Inspired by her background, where clean water wasn’t easily
accessible, Mashiane created a technique to clean nonpotable water, it is an affordable and fairly new way that residents from rural areas can use to purify
their natural water using the sand and sun. The
system comprises of a slow sand filter designed to clean natural water to potable water (i.e drinking water) using a bed
of sands (namely play sand, course and
fine gravel and activated carbon). The purified water is then placed in the
sunlight to kill off any remaining bacteria.
I went out to get insight from
Mashiane who is currently a fourth year chemical engineering student in the School of
Chemical and Metallurgical Engineering at Univeristy of the Witwatersrand,
Johannesburg.
·
Why did you choose to research the water filtration system
that collects clean water from polluted using the sun and sand in South Africa? I was undertaking
a water treatment course last year and when
I had a conversation with my lecturer, he
suggested we explore ways of coming up with
an idea we could implement. This conversation prompted me to choose this project because it was building on work done briefly by another student. We decided to build on the concept with the aim of looking at a
practical real-life application of the
project which could be applicable in rural areas around the country and Southern
Africa. My interest in this was borne out of the fact that it presented an opportunity a way that whereby I could assist my family and community, especially when considering the water crisis.
·
What is the objective of your project? My main objective is to make it accessible to those
who really need it, such as underprivileged communities around the country. It
is meant to be a low-cost solution intended to provide them with drinkable water.
·
Where do you see your project in five years? I'd like to see it being
used in many households around the country where it is making a real difference
in peoples lives.
·
What equipment did you use for your water purification
system? The design of the system is
quite simple, there are 3 main containers, 1 is the feed tank (the cost of this
depends on the size) then its the filter
container (about 100 litres), then its a sterilization tank (a clear container)
and finally its a storage tank which can
be anything where the water can be stored for use. The filter itself is made up
of the sands I mentioned above.
·
What difficulties did you encounter during this project? The project is still a work in progress so there's a possibility that there are many challenges to overcome. Thus far one of the biggest challenges is
as a result of me living in inner-city
Joburg with no personal transport which means getting river water has been a
challenge. I have had to ask my supervisor to collect this water for me, he has been of great help. Another challenge has been
balancing the work I need to do for the project with my primary academic work which is not very easy considering Wits is a
very intense institution. However, it's all going well so far and I'm excited
to have more time for it now that I'm done with exams.
·
What would you like the impact of your project to be in
South Africa? I'd like to see it improve
the quality of life of people living in
disadvantaged communities.
·
How do you balance social life and academics? It's a work in progress and some days are better than
others. I’ve discovered that it is best to do what needs to be done as you go along and to make sure you
don't obsess over little things. I like
working under pressure because I feel that's when I perform best so yeah I'm
far from perfect in this department but I just do what I can when I can and a
social life is a very important aspect of life so I make it happen. One last
thing, if you love something you'll find a way to get it done no matter the
circumstances).
The young innovator says her water purification
system is still in testing phase but hopes to
see some households using it and not relying
on municipalities.