This method is an innovative way to produce water from air using activated alumina balls. Activated alumina balls acts as hygroscopic material in this experiment.Research was done on college apparatus and results were noted.
Extraction of water from air using activated alumina balls
1. GREEN TECHNOLOGY
AND CHEMISTRY
An Innovative way to extract water from
air by hygroscopic material.
Authors:
1: Tanvay Shinde
2: Saurabh Deshpande
CHEMICAL
Thadomal Shahani Engineering College
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2. Table of contents
Importance of water
What are hygroscopic Elements?
Relative Humidity
Why Activated alumina?
Procedure
Calculations
Observation and Mechanism
Future Prospects
Conclusion
Acknowledgements
Bibliography
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3. IMPORTANCE OF WATER
Most important
substance
Primary uses
Secondary uses
Problems
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5. INTRODUCTION
How to solve this problem?
Alternate Ways to solve the problem
1)Reverse water gas reaction
2)Moisture from air
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6. RELATIVE HUMIDITY
What is Relative Humidity
units for Relative Humidity are
gm/m3.
Example, if the actual vapor
density is 10 g/m3 at 20°C
compared to the saturation vapor
density at that temperature of
17.3 g/m3 , then the relative
humidity is
R.H= 10/17.3* 100= 57.8%
Source: www.mumbaitemperature.com
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8. Hygroscopic Elements
Various elements studied
Material used Observation
1)Calcium Chloride Forms a slurry
2)Silica Gel Does not have a high
adsorbing power
3)Activated Alumina Does not react with
moisture
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10. Activated Alumina
Physical Properties
Size 3-6 mm
Colour ivory
Total Pore Volume 0.80
Melting point 2072deg C
Thermal conductivity 30 W/mk
Surface area 200m^2/g
Bulk density 641kg/m^3
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12. Calculations
Flow rate of coolant : 1.30 lpm
Amount of hygroscopic element : 1kg
Temperature of vacuum oven : 200deg
C
Pressure used in Vacuum Pump: 560
mm of Hg.
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14. COST FACTOR
1 Kg of Activated Alumina = Rs 20-23
It can be reused several times
1 bottle of water = Rs 15 - 20
Since alumina is reusable in the long
run it becomes more viable.
Electricity required for extraction is
mainly used by the Vacuum Pump.
We are working on better ways for
reducing this cost, like solar energy ,
etc.
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16. Why this method ?
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Factors OUR METHOD DESALINATION
PROBLEMS Variations in Relative
Humidity
Water pollution
(BRINE)
Fails to remove
harmful chemicals
from drinking water
POWER
CONSUMPTION
Comparatively low High
17. Conclusions
The basic aim of extracting water from
moisture was done with the help of
hygroscopic element alumina.
Comparing the Standard Water
conditions and our conditions, we
conclude that our sample can be
made potable with Treatment.
If future prospects are met we can
make our product industry viable.
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18. ACKNOWLEDGEMENTS
WE WOULD LIKE TO THANK
DR. S.J. PUROHIT FOR HER MORAL
SUPPORT AND HELP.
A SPECIAL THANKS TO
DR. PARAG SUTAR AND
MRS. ANJALI KIRKIRE
FOR GUIDANCE AND LAB
ASSISTANCE
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19. Copy Rights
This Reasearch was done under
guidance Dr: Parag Sutar (ICT) and
Dr: S.J.Purohit
The Research Paper is published with
ISBN 978-81-904760-8-9
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