Presentation Transcript
Pure Home Water Project for the Northern Region of Ghana: Pure Home Water Project for the Northern Region of Ghana Claire Mattelet
Rachel Peletz
Jenny VanCalcar
December 9th, 2005
The Global Issue: The Global Issue Globally, 1.1 billion people lack access to an “improved” drinking water source
1.7 million deaths annually are from unsafe water, sanitation, & hygiene
90% of these deaths in children
Virtually all in developing countries
Millenium Development Goals: To halve by 2015 the proportion of people without sustainable access to safe drinking water
Ghana: Ghana Population: 21 million
Approximately the size of Oregon
Northern Region
One of the poorest areas
Study area: 6 of 13 districts, 750,000 people
Pure Home Water (2005) - Ghana: Pure Home Water (2005) - Ghana Project:
2 social entrepreneurs selling household water treatment technologies
Person-to-person social marketing and microfinance
4 Sloan MIT students focusing on business aspects
Household Drinking Water Treatment and Safe Storage (HWTS): Household Drinking Water Treatment and Safe Storage (HWTS) Treats water at the point of use
Made out of local materials
Relatively cheap
Hard to implement
Retail Prices of HWTS in Ghana : Retail Prices of HWTS in Ghana
Slide7: Candle Filter - Nnsupa Modified clay Pot Tamakloe Ceramica
Water Safety Plan Objectives As defined by the World Health Organization: Water Safety Plan Objectives As defined by the World Health Organization Water source protection
Treatment processes to remove contamination
Recontamination prevention during delivery and storage Ensure quality drinking water through:
Household Cross-Sectional Survey: Household Cross-Sectional Survey For the Northern Region of Ghana Rachel Peletz
Research Objective: Research Objective Obtain baseline data on household drinking water and sanitation practices
Data for future MEng teams and Pure Water Home: Ghana
Comparison of households with and without HWTS
Methods
Epidemiological cross-sectional survey
Risk assessment
Household Questionnaire Compilation and Feedback: Household Questionnaire Compilation and Feedback Household Background
Diarrheal Illness
Prevalence and knowledge of causes and preventions
Household Sanitation and Hygiene
Hand-washing and toilet facility
Water Use Practices
Source collection
Water storage
Water quality perception
HWTS Acceptability
Observations
Survey Conduction Plan: Survey Conduction Plan Choosing households
Location: 6 communities within 3 districts (transportation uncertain)
Matching 30 households with and 30 without HWTS
Households that ordered but not yet received HWTS
Woman of household with children under 5
Smilie Diaries
Self-recorded prevalence of diarrheal disease
Slide13: Smilie Diaries
Quantification of Results: Quantification of Results Risk Assessment
Daily Exposure= Pathogen Concentration x Volume Consumed
WAWI (West Africa Water Initiative) Indicators
Access to safe water= People with access / Total population
Access to sanitation = People with access / Total population
HTWS acceptability
Rate Of Adoption (ROA) = Fraction using HWTS 1 month after receivement
Project Status: Project Status Current Progress
Survey development and revisions
IRB (Institutional Review Board)
Future Plan
Refine surveys and conduction plan
Collaboration with Jenny and Claire with GPS and water testing
Ghana!
Slide16: Assessment and Comparison of Simple and Low-Cost Microbial Indicator Methods By Claire Mattelet
for the Northern Region of Ghana
Motivations- Simple and Low-Cost Methods for Drinking Water Testing: Motivations- Simple and Low-Cost Methods for Drinking Water Testing Fatal diseases in Ghana mainly linked to poor water & sanitation:
Malaria, Diarrhoea, Typhoid, Cholera, Gastroenteritis
In Northern Ghana:
Communities are widely dispersed
=> Limited ability to monitor HWTS
=> Need for simple methods
Poverty in Northern Ghana:
=> Need for cheap methods
RESEARCH OBJECTIVE: RESEARCH OBJECTIVE Assessment and Comparison of Simple and Low-Cost Microbial Indicator Methods on the Basis of 6 Screening Criteria:
- Cost
- Ease of use
- Ease of interpretation
- Labor requirements to complete test
- Level of skill required
- User acceptability
MATERIALS: MATERIALS Membrane Filtration – Millipore
Zip Agua
3M – Petrifilm
H2S – HACH
H2S – Home made
Most Probable Number (MPN) – Home made Microbial Indicators Simple and Low-Cost Methods
MEMBRANE FILTRATION: MEMBRANE FILTRATION ZIP AGUA Millipore Corporation Product
Filtration Unit Cost: $ 1,000
Pump $300 MIT 2004 IDEAS Competition team product
Baby bottle + syringe: US$ 13
Slide21: 3M-PETRIFILM: E. coli / coliform count plate (EC) Enumeration test
Cost: $ 1/plate H2S - HACH Presence-Absence test
Hach Company Product
Cost: US$ 0.60/test
H2S – HOME MADE: H2S – HOME MADE MPN – HOME MADE Cost: Cheap => Rice Broth: - 25g Rice, 4g powdered milk
Home Made Broth Media with locally available ingredients: Rice, Potato, Corn, Lactose
Labor intensive
Similar product to the Hach product but much cheaper = $0.05/test
In Ghana: In Ghana WEEK 1:
Lab Analysis (Tamale)
First assessment of the 6 defined criteria
FOLLOWING WEEKS:
Selection of one or two appropriate techniques
Tranfer methods to « Pure Home Water » Ghana team
Field water samples
Creating a Geographical Information System (GIS) Tool : Creating a Geographical Information System (GIS) Tool Jenny VanCalcar
What is GIS?: What is GIS? A way to view and analyze data from a geographic perspective
Spatial features can be connected to tabular information
Overlaying of layers shows interrelations
Research Objective: Research Objective Create a tool to:
Store all relevant HWTS project information in a single database
Perform spatial analysis to aid in developing future interventions and business strategies
Design maps to represent the work accomplished and areas of future need
Current Data Sources: Current Data Sources Digital
Gfk Macon – regional boundaries, major rivers, lakes and highways
National Geospatial-Intelligence Agency – villages and water sources
Paper
Town & Country Planning Department – district boundaries
Ghana Geological Survey – boreholes, villages, local roads
Tabular
Guinea Worm Eradication Program
Digital Data: Digital Data Choose WGS 84 as the coordinate system for data projection
Easy basic map production but little statistical information
Paper Maps - Map Digitization: Paper Maps - Map Digitization
Tabular Data - Village Naming Issues: Tabular Data - Village Naming Issues Different data sources spell village names differently
Cannot place tabular information within the database if there is no spatial reference
Data Production Using a Global Positioning System (GPS) Device: Data Production Using a Global Positioning System (GPS) Device
In-Country Research Plan: In-Country Research Plan Continue gathering relevant data
CERSGIS
Ghana Statistical Service
Take GPS points
Discuss desired outputs
Pure Home Water - Ghana
World Vision – Ghana Rural Water Project
Slide33: Schedule Fieldwork
January 2, 2006 Team arrives in Accra, Ghana
January 4-5, 2005 Travel to Northern region of Ghana
January 23, 2005 Fieldwork complete
January 28, 2005 Leave Accra, Ghana Post-fieldwork
February- April Data Analysis/ Write-up
April-May Submit Final Report
Slide34: Thanks for your attention TO GHANA WE WILL WRITE YOU A POSTCARD!
PETRIFILM: PETRIFILM