A simple air purifier

1. TANMAYA TATHAGATA ,CLASS : 7th
KENDRIYA VIDYALAYA, BERHAMPUR,PIN-760010
Email-dpachary@rediffmail.com, Mob-08895956919

2. Our Natural Earth

3. Water with appropriate amounts of Minerals
Air with appropriate amounts of N2 and O2 gas mixture
Required amounts of heat from sun
Water vapor for proper season
A balanced CO2 formation and consumption
We are gifted
Nature

4. Polluters ……
factories & industries
What we add to
the environment

6. Burning of wastes
Polluters

8. Polluters
Transportation Vehicles

9. Urbanization

10. Urbanization

11. An example of victim
 The capital of India
 Most cosmopolitan city
 A city of modern civilization
 A glorious past history
•Delhi

12. 'Delhi is unlivable': NYT reporter has every reason to abandon the city
Rituparna Kakoty, Hindustan Times, New Delhi
| Updated: Jun 04, 2015 13:01 IST
It While-the-Prime-Minister-is-trying-to-push-India-as-a-global-manufacturing-hub-by-
promoting-industry-the-quality-of-air-in-the-country-has-raised-local-and-international-
concerns-after-the-WHO-last-year-declared-Delhi-the-world-s-most-polluted-cy-AP-file-
photo

13. Air Quality in Delhi
The Air Quality in Delhi, the capital of India, according
to World Health Organization (WHO) survey of 1600
world cities, is the worst of any major city in the world,
including Karachi, and Beijing, which also have poor
quality of air.
(The two other cities, in India, that have worse air quality than
Delhi, are Gwalior, in Madhya Pradesh, and Raipur, in Chhattisgarh)
In Delhi poor quality air damages irreversibly the lungs
of 2.2 million or 50 percent of all children.

14. A Note…..
• Air Pollution in India, it is estimated, kills 1.5
million people every year; it is the fifth
largest killer in India. India has the world
highest death rate from chronic respiratory
diseases, and asthma, according to WHO.

15. • There are many types of pollutions and pollutants .
• But in Delhi acute is air and water pollution and because of air
pollution (The 1997 White Paper sponsored by the Ministry of
Environment)
• Everyday many people are killed because there are no forests in
Delhi.
• Air pollution in Delhi is mainly caused by factories and industries .
People throw wastes in the rivers and snack’s wrappers and
kitchen wastes on the roads
• Forests already proposed various measures to bring down
pollution caused by traffic, including smoothing
• The flow of traffic with parking regulations and bringing down
total traffic by mandatory limits on driving
Pollution in Delhi

16. Who does the pollution Bring
The pollution is from –
• The vehicles
• The smoke from factories and industries
• Burning of plastic and polythene wastes
• By the growing population
• By cutting of trees
• By burning solid wastes.

17. City Pollution Load in metric tones per day
CO Nox HC PM
Delhi 421.84 110.45 184.37 12.77
Mumbai 189.55 46.37 89.93 10.58
Kolkata 137.50 54.09 47.63 10.8
Chennai 177.00 27.30 95.64 7.29
Banglore 207.04 29.72 117.37 8.11
Hyderabad 163.95 36.89 90.09 8.0
Kanpur 28.75 7.25 11.7 1.91
Agra 17.93 3.30 10.28 0.91
Estimated Pollution Load in the Cities (Source : Auto Fuel Policy, 2002)
As many as 500 vehicles exist for every Kilometre of the road stretch in Delhi whereas the
figure for Mumbai and Kolkata is 350, and for Chennai, this figure is less than 100 vehicles
Comparison between cities

18. No . of Registered vehicles in Delhi
(2014-15)
-The Hindu
• Cars / Jeeps -27.91 lakh
• Buses- 4700 (DTC) +1500 (Cluster) + 6000 (Pvt)
• Auto Rickshaws – 81633
• Two wheelers-56.81 lakh
• Taxies-79606
• Vehicles daily entering to Delhi-
• 80,000 trucks enter Delhi every night emitting
smoke and causing noise when people are
sleeping

19. Suspended particulate matter
• These are fine particles of soot, dust etc. They
are found in ambient air due to the combined
effect of various natural factors. In the case of
Delhi, presence of extensively large arid and
semi arid regions in north-west, loss of
moisture from top soil strata, etc. and
anthropogenic factors, i.e., extensive
urbanization and construction activities,
increasing vehicular

21. Why & How we breath
All animals and plants breath to live.
We can’t live without air for 5 minute
even . The oxygen of the air is
transferred in the tiny clustered
chambers called aveoli to the tiny
blood vessels and in reverse carbon
dioxide is transferred out.
In the cell , the food (glucose) is broken down into carbon dioxide
and water (aerobic respiration) using oxygen and energy is
released. For that, pure air is essential for all, to survive. Once it
was free and abundant, but not Now and in Delhi –the WORST.

22. Air Quality Index at different places in Delhi on 29th May 2015.
Impact on Human Health:
0-50 | Minimal impact
51-100 | Minor breathing discomfort to sensitive people
101-200 | Breathing discomfort to the people with lungs, asthma and heart diseases
201-300 | Breathing discomfort to most people on prolonged exposure
301-400 | Respiratory illness on prolonged exposure
401-500 | Affects healthy people and seriously impacts those with existing diseases
Place/time @ 5 AM @ 8 AM @ 6 PM
Shadipur 121 95 99
NSIT Dwarka 237 140 94
Mandir marg 190 453 159
Anand vihar 500 500 265
R K Puram 303 475 166
Punjabi Bagh 252 500 198

23. Should Delhites be forced to abandon
Delhi again and go Daulatabad.

24. Gilman started in 1886 during the Colorado Silver Boom, but Eagle Mine later became the
center of lead and zinc mining in Colorado. In 1984, the EPA ordered Gilman to be abandoned
because of toxic pollutants and contamination of ground water
http://webecoist.momtastic.com/2010/04/15/ghost-towns-places-abandoned-due-to-
disasters-pics/

25. “I challenge you to bring to the Summit
bold pledges. Innovate, scale up, co-
operate and deliver concrete action that
will close the emissions gap and put us on
track for an ambitious legal agreement.”
Paris Summit 2015
Getting a Global Agreement on Climate Change
Ban Ki-moon, Secretary-General. UNO

26. • “We are the first generation to
understand the consequences of a
high carbon economy on the planet,
on future prosperity and, in particular,
on the most vulnerable around the
world. Let us be the generation that
stands up and takes the responsibility
conveyed by that knowledge.”
Christiana Figueres,
Executive secretary
UN Framework Convention on Climate Change, May 2014.

27. Paris 2015
“Taking action now will not
only solve the problem of
protecting the planet, but
it will be a tremendous
boost for economies.”
Dr Jim Yong Kim
President, World Bank, 2014

28. • “I was very struck by the fact that the
impacts of climate change are
undermining a whole range of human
rights: rights to food, safe water and
health and education. But it is also
displacing people, which is very likely to
cause not just human distress but
potentially conflict. So for me it’s a very,
very serious issue of human rights.”
Mary Robinson
UN special envoy for climate change, 201330

30. My concern ….My idea …..
• Like me, you all must have felt the fresh
breath after the spell of a rain in Summer after
noon.
• Like me you all must have observed the
particles in the sun beam entering through the
slit of the window.
• Observed the difference in breathing, in
morning & Afternoon , before and after a spell
of rain.

31. • From that I got the Idea - Washing of the Air,
Cleansing the dust & pollutants.
• But Delhi air is Very Dirty- It needs Detergent,
Soda etc .
• While we clean, the dirt of the clothes are
being separated by detergent water.

32. My device – “Pramila Air Purifier “
My device is Simple, Cheap, Affordable by slum
dwellers yet effective in such emergency
but in emergency my device will help to a great extent.
and of course it is a modest approach...
I do agree with Sunita Narain (DG-CSE) who said
“…we must focus on prevention and not treatment . We need
to improve the environment ,reduce the disease burden ……”

33. Apparatus & ingredients required
(with apx. Cost Rs.1100) :
1. One 9 inch high speed exhaust fan (Rs.700).
2. G.I. Wire to make the shape of funnel and holding the apparatus (Rs.50).
3. Polythene Sack to make funnel over the G.I. wire frame (Rs 2/).
4. 2 big water Jars or Dalda dubba (Rs 50)
5. 2 small chocolate Jars (for air chambers) (Rs 15) which can be put inside the
big jars.
6. 1” Polythene pipes 4 meters (Rs. 60) so that funnel cab kept out side the
living room to avoid noise of the fan.
7. Synthetic mosquito net 3 meters (Rs.60)
8. Frame making ( welding) charge (Rs.50)
9. M-seal or fevicol to make connections and covers air tight (Rs30).
10. 2.5” Polythene pipe of 1 meter for filling and drainage of detergent water
and soda water to fit with Big Jars (Rs. 10)
11. One pouch Surf Exel & 250 gms Baking soda. (Rs.50)

34. The principle:
• First air is suctioned through a large area single layer
mosquito net filter.
• Then filtered through double layered mosquito net
which will absorb coarse dusts and fine fibrous
particles.
• Then Air is blown to pass through two liquid chambers
in series:
• Chamber-1 - the detergent water chamber. The air is
blown into solution through numerous small pores,
which will pass through the solution in small bobbles.
This will create foam continuously in small amount .
The Liquid layer & foam layer will catch most of the
Particulate Matters, Organic molecules, unburned
carbon, unburned fuels, oil vapors (from kitchen and
industries) .

35. • Chamber-2 – Backing soda water. The air
from chamber -1 is passed through
backing soda water which will absorb
further particulate matters, carbon
dioxide, Nitrogen oxides, detergent smell
and pure air will be released in the in
place of poluted air of Delhi.

36. Procedure
• Make big funnel by using G.I wire & pollythine sack,
which can house an exhaust fan mounted reverse
position to suck air.
• The Funnel mouth is kept downward, so that heavier
pollutants will fall down without entering it.
• Mount the exhaust fan in reverse to act for sucking the
air.
• Hang a circular mosquito net piece complete loosely
from the mouth of the funnel and put a small sand
pouch in its centre so that it will not be sucked by the
fan and to keep it in hanging position.

37. • Similarly hang the double layered mosquito net above
the first layer net.
• From the apex of the funnel, channelize the air inside
an air chamber floating beneath the detergent water
(6 ltrs water+4 spoon surf exel) in a sealed bigger
chamber which has room for air above the level of the
detergent water. The room above the detergent water,
is divided by a layer of mosquito net so that foam will
not be allowed to enter into the top portion of the
chamber.

38. • The air release from the first chamber be passed
similarly again through backing soda water. In
both the chamber heat will be produced due to
bursting of bubbles and reaction of carbon
dioxide with backing soda solution and released
air will be warmer.
• In both the chambers, dirty solutions are drained
and fresh solutions are filled after every 4 to 5
days depending upon the dirt it accumulated.

39. Photos of the device.

40. Pictures and procedure of my Device

41. Advantages
• It is cheap ( less than Rs.1100)
• It can be done by child like me.
• It is easy to maintain.
• Raw materials are easily available.

42. My small suggestation
• Let the children be in the house in the very
polluted days.
• Let the C.D.s/ DVDs with best teachings of the
best schools be provided to students in
minimum cost ,who can learn by DVD players
when not going to school.
• Don’t burn incense sticks in home and
temples.

43. Live and let others to live in earth
Do not destroy the habitable condition of earth
Do not allow the furious sun rays to enter
My big appeal