water purification in cambodia
DESCRIPTION
Water Purification in Cambodia. UWAter University of Western Australia EWB Challenge 2008 Jessica Equid Tom Pope Andrew Stead John Verran Patrick DonovanBeau Mavric. Problem Definition. 80% of deaths in Cambodia result from water borne illnesses - PowerPoint PPT PresentationTRANSCRIPT
Water Purification in CambodiaUWAterUniversity of Western AustraliaEWB Challenge 2008
Jessica Equid Tom PopeAndrew Stead John VerranPatrick Donovan Beau Mavric
Problem Definition
• 80% of deaths in Cambodia result from water borne illnesses
• Lack of sufficient, cost effective filters available
• Villagers source up to 16% of their water from deep wells– contains unsafe levels of arsenic
• Drinking water standards– pathogens, microorganisms and turbidity
eliminated• Cheap, Simple, Long-lasting water
filter surface water
deep wells
shallow wells
stored rainwater
bottled water
Solution
Solution - Backwashing
Prototype Construction
Prototype Construction
Prototype Construction
Prototype Construction
Prototype Construction
Prototype Construction
Prototype Construction
Turbidity Testing
• Utilised scale prototype• Visual and taste tests performed on discharge
from unit
Turbidity Testing
• Utilised scale prototype• Visual and taste tests performed on discharge
from unit
INPUT OUTPUT
Arsenic Removal Testing
• Small scale prototype constructed• Varying concentrations of arsenic
tested• Reduced arsenic to safe levels
– average reduction 90%
Sand mixtureIron nails
Implementation
• Locally available resources• Local Labour & Construction• Project Costing
– cost of materials for single filter, estimated to be less than $500• Monitoring and maintenance
– ensure filter provides safe water for extended time period• Waste Management
– safe disposal of all wastes
Kanchan Life Straw Ceramic Water Purified Sono 3-Kolshi UWA Community Filter0
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Filter Cost Per User
Implementation
• Locally Available Resources• Local Labour & Construction• Project Costing
– cost of materials for single filter, estimated to be less than $400• Monitoring and maintenance
– ensure filter provides safe water for extended time period• Waste Management
– safe disposal of all wastes
Impact assessment
• Environmental– arsenic sludge removal and disposal– all materials can be recycled
• Economic – local industries supported– jobs created– minimal ongoing costs
• Social– increased local knowledge base– Improve community health
Summary
• Filter is cheap, simple, long-lasting• Proven to be affective• Implementation and impacts considered and evaluated