When the micro-particle of nanostructured Titanium Dioxide(TiO2) are exposed to 388nm UV light, its inner will stir up hole-electron pair ,and the hole-electron pair will quickly remove to its surface and activate absorbed oxygen and moisture and occur free radicals (-OH ) and active oxygen (-O2). At the moment, chain degradation reaction occurs between the free radicals and kinds of contaminant or bacteria each other. For strong oxidation, the photo catalyst can implement the function of anti-bacteria by destroying the cell membrane. Specific detail reaction is like this, after titanium dioxide (TiO2) absorbs sun light, it is formed to be electronegative high active electron e- , and positive hole h+. With effect of electric field, electron e- and hole h+ are separated and moved to surface of particle. According to energetic theory, h+ can oxygenates OH- and H2O conglutinated on surface of TiO2 into free radicle. More ever, free radicle has strong oxidation ability and can oxygenate and decompose various organic substance(e.g. Formaldehyde ,Benzene ,TVOC), bacteria and part inorganic contamination (Ammonia, NOx) into non harmful substance: CO2 ,H2O . OH Free radicle has no selectivity to reactant, so it makes crucial effect in photo catalyzing . Meanwhile, high active electron e- has strong deoxidize ability and can deoxidize oxygen in air .

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It uses water as its primary fuel to produce the free radicals and Superoxides. The Hydroxyl breaks down rather quickly while the Superoxide lasts a little longer. The Superoxide is what I count on for control inside the water source because it creates Hydrogen Peroxide among other things. You are correct in that I mistakingly referred to reaction on the surface of the water as a Hydroxyl radical.

The Superoxide reduces Oxygen and Iron (found in certain bacterias enzymes) into Hydrogen Peroxide.

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Superoxide Dismutase (SOD) catalyzes the reduction of superoxide anions to hydrogen peroxide. It plays a critical role in the defense of cells against the toxic effects of oxygen radicals. SOD competes with nitric oxide (NO) for superoxide anion, which inactivates NO to form peroxynitrite. Therefore, by scavenging superoxide anions, SOD promotes the activity of NO. SOD has suppressed apoptosis in cultured rat ovarian follicles, neural apoptosis in neural cell lines, and transgenic mice by preventing the conversion of NO to peroxynitrate, an inducer of apoptosis.8,9,10 Covalent conjugation of superoxide dismutase with polyethylene glycol (PEG) has been found to increase the circulatory half-life and provides prolonged protection from partially reduced oxygen species. 7


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The half-life of the Hydroxyl Radical is in the billionths of a second, so it making its way into the surface of your lungs from the light bulbs surface is impossible, and even if it did it would hit something else along the way...

What I am doing in essence, is taking the air, moving it over the surface of the Titanium Dioxide lightbulb. This sterilizes the air and by using the humidity creates Hydroxyl Radicals which act immediately to destroy anything near it, and Superoxides which scavenge for a reactant. The Hydroxyl Radicals react quickly leaving only the Superoxide to make its way into the air pump or venturi tube inlet. The Superoxides react with organic matter in the air, airtube, or hydroponic solution using Oxygen from the atmosphere and Iron from the enzyme of the organic matter, to produce Hydrogen Peroxide. Small amounts of Superoxides and large amounts of Hydrgen Peroxide fizzes and pops on the surface of the water.

The superoxide, hydroxyl radical, and hydrogen peroxide all act to control odor in both air and water, but the hydrogen peroxide and superoxide is what reduces the odor in the water itself with a net product of carbon dioxide and water.

I know this works because my water does not smell anymore, when it use to smell like a swamp. When I was using the light in the room itself it destroyed the other in the room reducing the smell of the solution, but the solution still smelled. Now the solution does not smell at all, and even if I put the solution in a glass, take it out of the room and let it sit overnight there is no smell.

This is work well rewarded for myself, although there might be something I am missing...
AquaponicHerb Reviewed by AquaponicHerb on . Thinking outside the BOX - DIY VENTURI , DIY HYDROXYL RADICAL INJECTOR I found a need for a strong element to manage my robust 150 gallon system that house a forest of 7' Cannabis trees- so I made a modified hydroxyl radical generator that is capable of injecting the short-living molecules directly into the Hydroponic Solution via Venturi Injectors. Here are some pictures that showcase some of the programs I follow in reguards to improvising with various technologies to meet my needs. It is simple to spend all the money and acquire these technologies on a Rating: 5