Replicating Nature ?
------------------------
Times of India ( 17 March ) carried following news :
Union Water Resources
Minister Nitin Gadkari said on Friday that the country
would soon have potable water from sea at five paise per litre.
Trials for conversion of sea water
into potable water have
started in Tuticorin, Tamil Nadu, said the minister of River Development &
Ganga Rejuvenation.
This is indeed, a very good news
Another good news in respect of making available ,
clean drinking water , was reported in today’s Business Line . Read :
JanaJal water ATMs sell
250 ml of chilled water for ₹1, one litre at ₹5 and 20 litres for ₹20
“We plan to use this
fund to expand its footprint and operations, which Agarwal said would touch
1,000 water ATMs by the end of 2018.
“In near future, we
plan to install 1,500 water ATMs at railway stations and another 1,500 at other
places,” Agarwal said.
By 2020, he said,
JanaJal will be supplying 1 billion litres of clean and safe drinking water,
contributing its bit to keep India healthy.
MY OBSERVATIONS :
• Most affordable water dispensing technology (compared
to water cans, pouches, bottles etc.)
• Technology based on clean energy and
environment-friendly techniques such as solar energy
• Operates on solar
energy & electricity
Gravel Filter for suspended
particles
Silica Filter for fine TSS in water
Active Carbon Filter for odour eradication
Twin sediment filter
Dual Stage RO filtration
Online UV treatment
I suppose , all of these filtration
technologies + occasional use of electricity, makes this water 100 times more expensive, as compared to what
Shri Gadkariji claims .
And of course , it must depend upon
raw water supply from Public Water Distribution Network ( - which just
does not exist in our lakhs of villages and in our desert / semi-arid areas )
As against this , I suppose , that
Tuticorin plant would draw sea water and possibly use , Solar Energy for
distillation / evaporation , thereby eliminating energy cost .
And , since this process copies the
nature , there is no need for any kind of filtration
But its limitation is that , the
plant has to be very close to sea ! No good for hinterland !
Now comes the BEST news !
Extracting absolutely clean water (
anywhere , including in deserts ! ) out of thin air , using Solar Energy
!
No need for electricity / filtration
/ water source ( sea or public water supply ) !
Earlier , I had reported this in my
following blog :
Water
Water Everywhere ? Even in Latur ? [ 15 April 2017 ]
To know how this technology has progressed in last one
year , read :
In
Field Tests, Device Harvests Water From Desert Air
Last year , while sending my blog , I had requested
Shri Devendra Fadnavisji to contact Prof Yaghi , requesting him to make
available this WATER HARVESTING
technology
Dear Shri Gadkariji,
You are absolutely right when you say :
"Water is the
biggest problem in India. Only if we manage to save water, forest and animals
we would be able to go ahead. It is directly linked to our country and the
society"
I urge you to contact the following members of the
enlarged MIT team
Sameer R. Rao
[ srrao@mit.edu
]
You may also
want to look up an equally simple / affordable alternative at :
24 March 2018
www.hemenparekh.in
/ blogs
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