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The Goal is ZERO
1. The Goal is ZERO 
The 70,000 people in Lower Nyakach, Kisumu County, Kenya, have no access to safe drinking water sources and must use heavily contaminated rivers, streams, ponds and shallow wells. THE GOAL IS ZERO is a successful and replicable strategy to eliminate waterborne diseases in Lower Nyakach, implemented by the community based organization, Friends of the Old (FOTO).
1042 Visits
123 Images
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Water testing & Pasteurization in Africa
2. Water testing & Pasteurization in Africa 
A guide to water testing in developing countries using a Portable Microbiology Laboratory, and how to pasteurize contaminated water using sunshine and a simple solar cooker.
8900 Visits
132 Images
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3. SODISheatchlorine  (July 18, 2011)
Water sources in Lower Nyakach, Kenya, are tested and treated by solar disinfection (SODIS), heat, and chlorine. Will these procedures make the water safe to drink?
1088 Visits
107 Images
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Solar water pasteurization
4. Solar water pasteurization 
The default recommendation to treat contaminated water is to boil it. However, as microbiologists know from milk pasteurization (161°F, 71°C, for only 15 seconds) boiling is heat far in excess of what is needed. Water will be pasteurized when heated to 149°F (65°C). A reusable, wax-based Water Pasteurization Indicator (WAPI) can verify that water has been pasteurized. Microbiology tests before and after heating verify the disease microbes have been killed.
678 Visits
21 Images
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5. watermicrohistory  (1987-2003)
History of water testing in developing countries using the Colilert 10 ml presence/absence test and the E. coli Count Petrifilm as test items of a Portable Microbiology Laboratory.
1335 Visits
110 Images
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How to make a Cookit solar cooker
6. How to make a Cookit solar cooker 
It's easy to make a Cookit solar cooker from cardboard and 12 feet of aluminum foil. I've included the details of all steps that I use when leading workshops where many Cookits are made. To solar cook, place dark covered pot inside a clear plastic roasting bag. Solar water pasteurization doesn't require a clear plastic bag. Click on the 'start slideshow' above the first photo to view a slideshow.
1931 Visits
38 Images
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Water testing in Delft, Netherlands
7. Water testing in Delft, Netherlands  (May 27, 2018)
Water testing is made easy with the Colilert and Petrifilm tests of the Portable Microbiology Laboratory. As an example, two canal sources and one hotel tap water were tested on May, 27, 2018, incubated at body temperature overnight, and results obtained the next day.
123 Visits
12 Images
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8. WDCE2017  (Nov 13-16, 2017)
International Water Association's Water and Development Congress and Exhibition in Buenos Aires, Argentina. IWHA had a booth to share water testing methods, and Bob and Patrick gave three presentations on IWHA's work.
311 Visits
27 Images
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9. Delft,Netherlands 
Delft, Netherlands. In the 1670s, Delft citizen Anthony van Leeuwenhoek was the first person in history to develop microscopes powerful enough (~400 magnifications)to discover the microbial world for all of humanity. He was the first person to see bacteria, yeast, algae, red blood cells, protozoa. Come to Delft to honor Anthony.
1222 Visits
80 Images
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Bio 139 Lab Practical #1
10. Bio 139 Lab Practical #1 
Photos from lab exercises covered on the first lab practical exam
11368 Visits
83 Images
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Bio 139 Lab Practical 2
11. Bio 139 Lab Practical 2 
Photos from lab exercises covered on the second lab practical exam
23425 Visits
85 Images
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WAPI waxes
12. WAPI waxes 
Testing melting temperature of WAPI waxes
813 Visits
19 Images
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