Tweet
This is a link to what looks like a deceptively simple contraption to produce bleach for water purification out of a 1% salt water solution. Some of the components, reportedly have to be custom manufactured in a machine shop out of special materials to prevent metal poisoning. According to the article the machine can be run off a 12 volt battery or a bicycle with a belt attached to generate the needed power. This could potentially save huge amounts of labor for woman in third world countries, who have to travel longer and longer distances to find firewood to boil contaminated water to purify it for safe consumption. It could also potentially save a lot of trees and wood land. This in turn could help prevent erosion, provide timber in the long term and provide more food sources and habitat for wildlife.
"The idea behind the ‘waterpot’ for making bleach Is to have a rugged piece of equipment that anyone can assemble. Then they can take care of their own drinking water and other sanitation. Gages and other instruments are hard to find in rural areas so the ‘waterpot’ is designed to run without them. Gauges are not needed because the Electrodes are sized so they work directly off the 12 volt battery when they are immersed 3 inches into one percent (1 %) salt water, One teaspoon of fine salt added to one liter of water makes a 1 % salt brine.
AC
**************
"The electrodes are made of graphite Or titanium and will usually have to be made at a machine shop. Do not use any other material because the metal can get in the bleach and cause metal poisoning. The electrodes are 3 inches (75 mm) wide x 6 inches long (150 mm). The separating strips of wood or plastic are ¼ inch (6 mm) thick
These dimensions are set to use about 4 amperes between electrodes or about 12 amperes at 12 volts when submerged 3 inches into 1 % brine."
"The idea behind the ‘waterpot’ for making bleach Is to have a rugged piece of equipment that anyone can assemble. Then they can take care of their own drinking water and other sanitation. Gages and other instruments are hard to find in rural areas so the ‘waterpot’ is designed to run without them. Gauges are not needed because the Electrodes are sized so they work directly off the 12 volt battery when they are immersed 3 inches into one percent (1 %) salt water, One teaspoon of fine salt added to one liter of water makes a 1 % salt brine.
AC
**************
"The electrodes are made of graphite Or titanium and will usually have to be made at a machine shop. Do not use any other material because the metal can get in the bleach and cause metal poisoning. The electrodes are 3 inches (75 mm) wide x 6 inches long (150 mm). The separating strips of wood or plastic are ¼ inch (6 mm) thick
These dimensions are set to use about 4 amperes between electrodes or about 12 amperes at 12 volts when submerged 3 inches into 1 % brine."
