“Zero Bacteria - Drinking Water”
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No Electricity,
No chemicals, No boiling!
Bacterial
contamination in drinking water is very common and many a time not detected with normal
observation.
Silver
metal is a well known bactericide and thin silver sheets can be used to purify
water.
Process:
- · Collect 10lt of raw water in a container with lid
- · Immerse pure silver sheet of A4 size paper size around 22cm X 30cm
- · Allow the water with silver sheet in the container (dark inside) for around 10 hours without disturbing
- · Water will be bacteria free after 10 hours.
Points to
note:
- · Use pure silver sheet
- · Thickness of silver sheet does not matter, surface area is important
- · Keep silver sheet 24 X 7, 365 days immersed in water and in dark
- · Once in 4 days wash the silver sheet in running water, wipe it dry with clean cloth and reuse for water treatment
Additional Information:
Water from Rainwater tank,
open well, bore well, lakes, ponds, rivers and canals can provide water for
domestic use. However, all these sources have varying degree of contaminants,
rainwater being the purest and the surface water stored in an open pond may be
the most contaminated. All the above sources need to be treated for potable
purposes.
Rainwater
collected from a surface is relatively free from salts and other dissolved
impurities compared to water from bore well, open well or from river. However rainwater collected from the surface may
be contaminated (bacteriological contamination). Fecal coliform and E.coli are the common and harmful
bacteria present in all the above sources of water.
Salient features of treating
water by silver sheet:
·
A simple and a safe
method for treating water
·
Provides 100% bacteria
free drinking water
·
No electricity or
chemicals required
·
No harmful side effects
and does not impart any odour or taste to the water
·
An inexpensive and
affordable method
·
No recurring cost
·
No maintenance
·
Suitable for urban as
well as rural conditions
·
An environment friendly
method
·
Any individual can
treat water at his/her own place with this method
·
Effortless, convenient
method for all the section of our society
·
Can be carried with you
where ever you go
Note:
·
This method of
treatment does not alter the salts / chemical composition of water
·
The higher the
bacterial contamination more is the surface area of silver need to be exposed
for water treatment
·
Time taken to treat
water may be reduced for a given quantity of water by increasing surface area
of silver directly in contact with water
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