Transcript WWR-Clean-Water-Filtration-System-Christiex

An Introduction to Our Water
Filtration Systems
Where Do We Work?
The Dominican Republic
Haiti
9 Schools
4,078 Students
10 Schools
8,803 Students
Why Filter the Water?
Dominican Republic Water
48.1% positive for
fecal bacteria
Only 26.5% positive for
residual disinfectant
National House Survey in 2009-2010
Haiti Water
52% of rural
population still lack
access to improved
water sources
The World Bank 2010-2014
WWR Schools
Normal Schools
What Do We Do?
Water Filtration System:
1
Sediment
Filter
2
Carbon
Filter
3
Ultraviolet
Light
How it works? – Sediment Filter
5 micron wound
poly sediment filter
What gets filtered? – Sediment Filter
Suspended solid greater than 5 microns
New
Used
1
Dirt and debris
2
Protozoa:
3
-
Giardia cysts (8-14um)
-
Cryptosporidium oocytes (4-6um)
Helminthes:
-
Hookworm eggs (50-100um)
-
Roundworm eggs (40-60um)
Filters miss bacteria such as Cholera, E. coli, and Salmonella (0.2 – 0.5 microns) and viruses such as
Hepatitis A, rotovirus and Norovirus (0.004 microns)
How it works? – Carbon Filter
10 micron carbon
block filter
What gets filtered? – Carbon Filter
Absorption of pollutant to for better tasting water and
removes harmful water contaminants
1
Contaminants:
-
Industrial chemical pollutants,
solvents, pharmaceuticals, pesticides
and herbicides
2
Aesthetics:
-
Taste
-
Odor
Cannot remove minerals, salts and dissolved inorganic compounds (arsenic,
barium, cadmium, lead, mercury, selenium, and thallium)
How it works? – Ultraviolet Light
10 micron carbon
block filter
What gets disinfected? – Ultraviolet Light
Energy produced by UV lamp has ability to destroy
99.99% of drinking water pathogens
1
Bacteria
2
Viruses
3
Fungi
4
Algae
5
Protozoa
Safe to Drink!
Proper storage of filtered and disinfected water is important to
prevent contamination
Installation
1
A water source (well/river/spring)
Installation
2
Electricity and piping
Installation
3
Security and local support
Installation
4
Storage and distribution
Installation
5
Regular maintenance