This technique deals with purification of impure water and production of green electricity by the
use of solar radiation. Field of invention is chemical engineering, green energy, and purification
of water.
Background of the Invention
There is acute shortage of pure and safe drinking water in rural area and majority of metro cities.
There is also a shortage of electricity in villages and undeveloped cities. We have designed a
novel technique to purify impure water and generation of green electricity by using solar
radiation. In country like India, a lot of solar radiation are available almost whole of the year.
Hence, we can continuously purify the impure water and can produce electricity from the steam
generated from the hot water which will be attached with turbine and dynamo. In the day time,
electricity produced will be used for day to day work and for charging rechargeable battery so
that the same can be used in the night. Major advantage of our technique is that it will purify the
water as well as produce electricity from solar radiation. Further, this technique is 100%
environment friendly and will not pollute the environment and large fraction of water is not
wasted (as in case of RO system).
Current water purification technology in India:
Now a days, most common water purification technique is RO+UV system, sedimentation and
filtration process, addition of chlorine, coagulants, anti-scaling agents, evaporation method, etc.
Most of these techniques are lengthy, time consuming, requires machinery, wastage of
chemicals, non-environment friendly, and continuous source of energy/electricity. Further, a
large section of water is discarded as waste after the treatment process.
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The current electricity production technology in India:
The electricity in India is mainly produced from thermal power plants. A few other technology
(not common) for the production of electricity in India are: Nuclear plants, hydro plants, wind
mills, solar panels, etc. All these methods suffer from one or more limitations like release of
harmful gases, leakage of nuclear radiation in the atmosphere, large amount of water in hydro
plants and wind speed in wind mills, etc. In order to overcome these limitations, we have
designed a novel technique to purify impure water and production of green electricity by using
solar radiation which is available throughout the year in India.
Our technique:
Till date no technique discloses either alone or in combination of our present novel technique.
Our technique is a four-stage water purification and green electricity production technique and
can be applied anywhere in open sun. The green electricity produced by our technique can be
stored in rechargeable batteries in the day time and will use solar radiation for the purification of
impure water.
Main objectives of the present invention are:
i) To develop a novel technique for the purification of impure water using solar
radiation. A continuous supply of safe and pure drinking water.
ii) Production of electricity (green energy) from the steam generated from heating of
the impure water without polluting environment using solar radiation.
iii) Electricity produced in day time will be stored in rechargeable batteries or can
used directly while at night rechargeable batteries will supply the electricity.
SUMMARY OF THE INVENTION
Providing safe, pure and low-cost drinking water to every citizen of India is a challenge for
any government or private agencies. Further, majority of electricity generated in India is from
thermal power plants. The thermal power plants have their own limitations like limited supply
of the coal and produce harmful gases which pollute our atmosphere. There is an urgent need
to develop a technique to purify impure water and production of green energy by using solar
radiation. We have suggested solution to both these problems. Our novel technique can solve
both these problems i.e., it will provide safe, pure and almost free drinking water along with
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production of green electricity from the steam generated from heating of impure water by
using solar radiation.
Comparison of my invention and available Techniques in market:
Our Invention Limitations of existing Technique (Prior
Arts)
Is a seven-step technique for purification of
water and production of green energy.
Water purification by RO and UV light is a
continuous energy requiring process and
produce large amount of waste water in
comparison to small amount of pure water.
Continuous energy is not required. Solar
radiation will be used for heating purposes.
Continuous energy (electricity) is required for
purification of water.
No water is wasted in our technique. Large amount of water is wasted in purification
process.
It is non-polluting technique. Energy
produced will be green energy.
Polluting technique as burning of coal in thermal
power plants produce large amount of smoke
and unburnt carbon particles in the atmosphere
(air pollution).
Cost effective, maintenance free and very
easy technique.
Very costly, and require regular service and
maintenance.
Steam generated from hot water is used for
running turbine and generator (dynamo)
for the production of electricity.
Steam is generated from burning of coal
(Thermal plants) or uranium (radioactive metal)
in Nuclear power plants.
Novel technique Conventional technique
Can work continuously day and night.
Electricity produced in day time will be
stored in rechargeable batteries and hence
Non-continuous. Production of electricity
depends upon supply of coal and other
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green energy can be used day and night. environmental factors.
Brief Description of the Drawings
Impure water either from ground water or lake, pond or sea will be collected and store in large
size impure water reservoir. Through the motor the impure water is pumped in to a large
stainless-steel tank placed at the focal length of water based convex lens at the top. A water
based convex lens will be installed on a movable wooden frame whose height can be adjusted up
and down to adjust its focal length. The water tank can also be moved left to right according to
the direction of the sun. The solar radiation will be focused on the stainless-steel tank containing
impure water. The steam generated will be passed through closed pipes connected to turbine,
dynamo and invertor and rechargeable batteries. The steam will be condensed in closed circular
pipes dipped in large size water reservoir tank. The steam on condensation changes into liquid
water which will be collected in a separate tank. Additional mineral will be added before
supplying water for drinking purposes. The green electricity generated can be used directly
during day time and in the night, rechargeable batteries will be used for daily needs of electricity.
Impure water Purification and green energy production technology:
Methodology:
Impure water will be collected from ponds, underground water, lakes, sea water, etc. and filled in
water tank. Water based convex lens will be used for heating the impure water by focusing solar
radiation. Steam generated will be used for running turbine attached with dynamo and
rechargeable batteries.
Stage I: Water based convex lens (water stored in polythene sheet) will be used for heating the
impure water by focusing solar radiation.
Stage II: Impure water tank will be placed at the focal length of water based convex lens.
Stage III: Steam is generated due to the heating of impure water.
Stage IV: Steam generated will be used for running turbine (at high temperature and pressure)
attached with generator (dynamo) and rechargeable batteries.
Stage V: Electricity generated through generator (dynamo) can be used directly for house hold
purposes and in the night rechargeable battery will supply electricity.
Stage VI: Steam will be condensed by circulating through closed pipelines submerged in impure
water bath which act as sink.
Stage VII: Pure water will be collected in a tank and extra mineral will be added before
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supplying for drinking purposes.
Fig. 1. Impure water purification and green energy production technology.
Detailed description of the invention:
Methodology:
Impure water will be collected from ponds, underground water, lakes, sea water, etc. and filled in
stainless steel water tank. Water based convex lens (water stored in polythene sheet at a height)
will be used for heating the impure water by focusing solar radiation on the stainless-steel water
tank placed at the focal length of convex lens. Height of steel tank can be adjusted accordingly to
reach to the focal length of convex lens. Steel tank can be moved horizontally and vertically to
some extent on wheels and spring attached to it depending on requirement. Steam generated (at
high pressure and temperature) will be passed through closed pipes and will be used for running
turbine (stainless steel blades) attached with generator (dynamo) and rechargeable batteries.
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Water level of stainless-steel tank will be maintained up to a level by supplying extra water from
the sink by use of automatic level motor. A frame of wooden poles will be used for holding
water based convex lens at a height. The convex lens will absorb solar radiation at different
angles as the sun rotates (east to west) during the day time.
Stage I: Water based convex lens (water stored in polythene sheet) will be used for heating the
impure water by focusing solar radiation.
Stage II: Impure water tank will be placed at the focal length of water based convex lens.
Stage III: Steam is generated due to the heating of impure water.
Stage IV: Steam generated will be used for running turbine (at high temperature and pressure)
attached with generator (dynamo) and rechargeable batteries.
Stage V: Electricity generated through generator (dynamo) can be used directly for house hold
purposes and in the night rechargeable battery will supply electricity.
Stage VI: Steam will be condensed by circulating through closed pipelines submerged in impure
water bath which act as sink.
Stage VII: Pure water will be collected in a tank and extra mineral will be added before
supplying for drinking purposes.

We Claim:
i) Water based convex lens will be used for heating the impure water by focusing solar
radiation. Impure water tank will be placed at the focal length of water based convex
lens.
ii) Steam is generated due to the heating of impure water. Steam generated will be used
for running turbine attached with dynamo and rechargeable batteries.
iii) Electricity generated through dynamo can be used directly for house hold purposes
and in the night rechargeable battery will supply electricity.
iv) Steam will be condensed by circulating through closed pipelines submerged in impure
water bath which act as sink. Pure water will be collected in a tank and extra mineral
will be added before supplying for drinking purposes.