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Making Drinking Water From Sewage
With the right cleaning methods, we can turn the dirtiest water into safe cleaning water.
With the right cleaning methods, we can turn the dirtiest water into safe cleaning water.
We look at the science behind the whole process, from sap to syrup.
The process might be relatively simple but it's dangerous and illegal without a license.
We look at the century-long quest for the Holy Grail: synthetic blood.