New Inexpensive Method of Water Purification with Pressurizing Ozone
The rainbow effect caused by varying thicknesses of oil film on water’s surface might be pretty to look at but is indicative of polluted water.
This “oil sheen” proves especially difficult to remove, even when the water is aerated with ozone or filtered through sand.
But now an engineer has developed an inexpensive new method to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters.
It’s created by Andy Hong, uses two existing technologies – ozone aeration and sand filtration – but significantly changes the former method. Instead of attempting to turn the entire hydrocarbon (oil) content in the water into carbon dioxide and water by just bubbling ozone through polluted water, the new process converts it into a form that can be retained by sand filtration.
To achieve this Hong uses repeated cycles of pressurization of ozone and dirty water so the ozone saturates the water, followed by depressurization so the ozone expands into numerous micro bubbles in the polluted water.
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