The Story of Ceramic Pot Filters and Pure Home Water...2012/06/29 · India Sri Lanka (2) Bali...
Transcript of The Story of Ceramic Pot Filters and Pure Home Water...2012/06/29 · India Sri Lanka (2) Bali...
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Credit: Alexandr Nishichenko
The Story of Ceramic Pot Filters and Pure Home Water
Susan Murcott Senior Lecturer, Civil and Environmental Engineering Department
Massachusetts Institute of Technology Singularity University
June 28, 2012
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Water Rich - Safe Water Water Poor - Unsafe Water
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Sanitation Rich Sanitation Poor
Toilet flushing in an average household uses 50 liters of water per day (WHO)
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Conventional Industrialized
Sanitation
90 - 95% of the wastewater in developing countries receives no treatment
Linear Flow
(Slide by Brian Robinson)
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Donald R.F. Harleman & Chemically Enhanced Primary Treatment (CEPT)
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I learned about the need for safe and accessible water from these women and others like them
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2nd Intern’l Women & Water Conference - Kathmandu, Nepal
September 1998
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Household Drinking Water Treatment and
Safe Storage Technologies
Stone Filter – Peru, c.1600 (Photo: Tom Clasen)
A cluster of innovative technologies invented and disseminated only within the past 1 to 15 years that are explicitly designed to address the safe water needs of the billion+ people at the bottom of the economic pyramid.
They are distinct from 1st World post-tap devices that give “luxury water” to the rich, or to traditional water management practices, that may or may not give safe water. Post-tap filter for
“luxury water”
Traditional unsafe storage
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Recent studies have shown health impact of household drinking water treatment and safe storage: “safe water alone can reduce diarrheal and other enteric diseases by 6% to 50%, even in the absence of improved sanitation or other hygiene measures.”
•Nath,K.J., Bloomfield,S., and Jones,M. “Household Water Storage, Handling and Point of Use Treatment. International Scientific Forum on Home Hygiene. Kolkata, India. 2006. http://www.ifh-home-hygiene.org
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Examples of Household Safe Storage and Water Treatment Processes and Systems
• I. Safe Storage • 1. Plastic or modified clay pot safe storage containers
• II. Disinfection • 2. Boiling • 3. SODIS • 4. Household chlorination
• III. Particle Removal Technologies • 5. Cloth Filtration • 6. Ceramic Filters
– Candle Filters – Pot Filters
• 7. Biosand Filters • 8. Coagulation/Precipitation Only
• IV. Combined Systems • 9. Coagulation/Precipitation + Chlorine Disinfection (e.g. PUR) • 10. Filtration + Chlorine Disinfection (e.g. Gift of Water Filter) • 11. Filtration + Disinfection + Aesthetics (Hindustan Lever, Pure-it)
• V Chemical Removal Systems
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Safe Storage Products
CDC Safe Storage Vessel Oxfam Safe Storage Modified Clay Pot
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Boiling
Household Disinfection Methods
Household Chlorination
Solar Disinfection (SODIS)
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Kosim Ceramic Pot Filter Guinea Worm Cloth Filter
SODIS
Biosand Filter
Particle Removal Technologies
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Proctor & Gamble - PuR
Combined Systems
Hindustan Lever-Pure-it Kanchan Arsenic Filter
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Cyrstal Quest - Multiple Chemicals (e.g. copper, lead, fluoride)
Chemical Removal Systems
Kanchan Arsenic Filter – Arsenic
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Ceramic Pot Filter Dr. Fernando Mazariegos, Inventor
1981: Dr. Fernando Mazariegos of ICAITI (Instituto Centro Americano de Tecnologia Industrial, Guatemala, invented the ceramic pot filter coated with colloidal silver
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1st Disseminators –
Ron Rivera & Manny Hernandez - Potters for Peace
Ron Rivera (1948 – 2008)
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1st independent studies of the ceramic pot filter were conducted by MIT researchers. Ron felt that these studies set the stage for successful dissemination .
Some of my MIT students who worked with Ron Rivera/Potters for Peace in the early 2000s
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Managua, Nicaragua Factory 1st Factory
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Ceramic Pot Filter FactoriesAround the World
(Ron Rivera, Oct. 2007)Iraq
Thailand
Cambodia (3)
Nepal
Bangladesh
India
Sri Lanka (2)
Bali
Morroco
Yemen
Sudan
Kenya
Tanzania
Mozambique
Zambia
Ghana
Tanzania
US
Canada
Mexico
Guatemala (2)
El Salvador
Honduras
Nicaragua (2)
Cuba
Haití (closed)
Dom. Rep.
Colombia
Ecuador
Bolivia
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• Ron died of malaria in Nigeria in 2008 while building his 30th factory.
• His life’s goal of 100 filter factories remains to be completed.
• Today, there are a number of people who are continuing this inspired work…
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2012
• In just 10 years, due to the efforts of many dedicated people, we have gone from that single, first factory in Managua to 36 factories in 18 countries.
• For example…
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Manny Hernandez has helped to build 7 factories in Cambodia, Honduras, Dominican Republic, Tanzania, Nigeria, Ghana and South Africa
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Curt & Cathy Bradner (ThirstAid) have trained local entrepreneurs in Myanmar and built 8 factories
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The new Ecofiltro factory in Guatemala has the
capacity to produce 10,000 filters per month.
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Cambodia has 3 competing ceramic pot filter manufacturers and has gone from 0% to 10% of the
entire population using these filters in 10 years
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Pure Home Water
Pure Home Water (PHW): a social enterprise founded in 2005 with 2 goals:
1. Provide water, sanitation, hygiene (WASH) services in Ghana, especially northern Ghana where the challenges are greatest;
2. Become financially and locally self-sustaining.
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Our factory is on the map! Close-up of Factory Land from Google Earth
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Highly Turbid Taha Water Supply
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Taha Water Supply, Pure Home Water Factory Site and Taha Village
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Views of Typical Local Water Supplies & Samples
• Extremely high turbidity, even in dry season
Turbidty Test (NTU)
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50% (0.9 million out of 1.8 million people) in Northern Region, Ghana
currently use an unimproved source
• Improved Sources – Boreholes
– Household connection
– Public standpipe
– Rainwater harvesting
– Protected springs and dug wells
• Unimproved Sources – All surface water
sources
– Unprotected springs and dug wells
– Tanker trucks
– Vendor water
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Accomplishments: Pure Home Water Filter Sales (2005 – 2010)
We have reached over 100,000 people to date!
0
1000
2000
3000
4000
5000
6000
7000
8000
Yr 1 (0506) Yr 2 (0607) Yr 3 (0708) FY 4 (0809) FY5 (0910)
569 1,224
7,700 flood sales
4,000
emergency
distribution
333
902 967
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2009 Guinea Worm Distribution - 4000 Filters Training,
Dissemination, Monitoring
Woman from Yesapi, Central Gonja, with bandage covering guinea worm- infected foot
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Kosim Ceramic Water Filter Guinea Worm Cloth Filter
SODIS
Local awareness of filtration is high!
During Ghana’s decades-long, successful Guinea Worm Eradication Campaign, millions of cloth filters were disseminated
Uneducated, low income Ghanaians understand the benefits of filtration for safe water and accept ceramic filters as a step-up
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High Rate CPF
Flow Rate Bacteria Removal
Turbidity Reduction
9.6 L/hr 99.7 % 92 %
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Flow Testing of Each Filter
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Factory – make-shift lab for microbial indicator testing
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Bacterial Testing of Each Batch of Filters
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Present Status of the Factory
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> 100 MIT engineering, business, urban studies, policy and public
service students have assisted PHW
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Hygiene: Tippy Tap Handwashing Stations
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Pure Home Water YouTube Video http://www.youtube.com/watch?v=W5-Hpn7VEg4
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Which USAID Maternal & Child
Heath (MCH) Priority Countries
currently have ceramic pot filter
factories?
# Africa Ceramic Pot Factory?
1 Benin Yes – (but only 200 filters produced)
2 DR Congo No
3 Ethiopia No
4 Ghana Yes
5 Kenya Yes
6 Liberia Pending?
7 Madagascar No
8 Malawi No
9 Mali No
10 Mozambique No
11 Nigeria Yes
12 Rwanda No
13 Senegal No
14 Sudan Closed
15 Tanzania Yes
16 Uganda No
17 Zambia No
Asia Ceramic Pot Factory
18 Afghanistan No
19 Bangladesh Equipped in 2004, no production
20 Cambodia Yes
21 India Yes
22 Indonesia No
23 Nepal Solutions Benefitting Life – disk, not ceramic pot filters
24 Pakistan No
25 Philippines No
26 Tajikistan No
27 Yemen Yes
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Clean water for all!
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http://web.mit.edu/watsan/meng_ghana.html http://www.purehomeh2o.com Pure Home Water Kalpohin Estates 2nd Road (across from SDA School) PO Box 2261 Tamale N/R, Ghana T +233 (0)3720 27231 C +233 (0)27 364 3034 Mary Kay Jackson <[email protected]> Susan Murcott <[email protected]>
For More Information
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“ Safe Water for 1 Billion People”
http://web.mit.edu/watsan
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Videos on Ceramic Pot Filters
• http://www.youtube.com/watch?v=NfIX4tttrjMAsdf [Potters for Peace]
• http://wn.com/CooperHewitt_Design_for_the_Other_90__Panel__Ron_Rivera [Ron Rivera]
• http://www.youtube.com/watch?feature=player_embedded&v=d4Aqln [Ecofiltro mission]:
• http://www.youtube.com/watch?v=UC9a12e7M0cWgkiQ [Ecofiltro’s new factory]
• http://www.youtube.com/watch?v=lPvHtjRvWFM [IDE Cambodia]