The post describes an easy method of making an ultra violet water purifier circuit using ordinary electronic components.
Ultraviolet germicidal irradiation (UVGI) is a water treatment method which employs UV or ultraviolet light rays in the range of short wavelength in order to eliminate the present pathogens and microorganisms.
The technology involves short wavelength UV rays (UV-C) which are effective against all types of germs and microorganisms.
The introduced UV rays target the nucleic acids of the pathogens and cripple them by disorienting their DNA structure.
As a result the germs are unable to carry on with their normal cellular operations and ultimately succumb under the radiation.
The sun is the major and strongest source of UV rays which includes UV rays of all wavelengths. The harmful ones are effectively absorbed by our planets ozone layer and that's why life could sustain so far on this planet.
Commercially or rather artificially generated UV sources include electrically activated devices such as LEDs, neon lamps, black light bulbs or wood's lamp, xenon flash bulbs, welding arcs and similar arc discharges.
Even an ordinary incandescent bulb generates UV rays but in small quantities compared to the other included light spectrums.
For disinfecting water the most effective artificial sources are perhaps the wood's lamp, and special UV LEds.
However both these devices are special items not easily available in the local market, moreover UV LEds are extremely costly devices.
Xenon lamps which are normally seen in camera flashes also emit considerable amount of UV rays, although it might include the entire spectrum of the wavelength.
According to me if you want to make a homemade UV water purifier circuit, a camera flash xenon tube can be the best option, since these can be easily procured and constructed at home.
You can retrieve an entire flash electronic section from your camera for making this project or alternatively make an AC operated xenon tube flasher circuit at home and then use it for the proposed UV water purifier circuit.
A simple xenon flash circuit can be seen in the following diagram:
The explanation for the above circuit diagram can be found HERE
After making the above circuit, the lamp may be positioned such that the rays are able to traverse past the water from one end to the other end.
Make sure the water is clear and free from dust particles because suspended impurities will block most of the UV rays making life easy for the germs.
Also remember, the flash bulb should be paced directly face to face with the water surface, if it's placed outside the bottle or the container, the material would block most of the rays making things ineffective. You may refer to the following layout example.
Another potential source of UV light are electric arcs, we all are aware the adverse effects a welding arc introduces to the person using it, simply shows the radiation level generated from these sources.
We can put these devices for disinfecting water tanks or containers by creating electric arcs inside the tanks or smaller household enclosures.
Ofcourse nobody would want to use welding machine for implementing this, a simpler option would be to use a capacitive discharge circuit as used in motorbikes for generating ignition sparks.
For the above results you may try the following circuit:
The entire explanation can be read HERE
Again as discussed above, the arcs must "see" the water directly and not through a transparent medium or through the enclosure, as shown in the following example:
Ultraviolet germicidal irradiation (UVGI) is a water treatment method which employs UV or ultraviolet light rays in the range of short wavelength in order to eliminate the present pathogens and microorganisms.
The technology involves short wavelength UV rays (UV-C) which are effective against all types of germs and microorganisms.
The introduced UV rays target the nucleic acids of the pathogens and cripple them by disorienting their DNA structure.
As a result the germs are unable to carry on with their normal cellular operations and ultimately succumb under the radiation.
The sun is the major and strongest source of UV rays which includes UV rays of all wavelengths. The harmful ones are effectively absorbed by our planets ozone layer and that's why life could sustain so far on this planet.
Commercially or rather artificially generated UV sources include electrically activated devices such as LEDs, neon lamps, black light bulbs or wood's lamp, xenon flash bulbs, welding arcs and similar arc discharges.
Even an ordinary incandescent bulb generates UV rays but in small quantities compared to the other included light spectrums.
For disinfecting water the most effective artificial sources are perhaps the wood's lamp, and special UV LEds.
However both these devices are special items not easily available in the local market, moreover UV LEds are extremely costly devices.
Xenon lamps which are normally seen in camera flashes also emit considerable amount of UV rays, although it might include the entire spectrum of the wavelength.
According to me if you want to make a homemade UV water purifier circuit, a camera flash xenon tube can be the best option, since these can be easily procured and constructed at home.
You can retrieve an entire flash electronic section from your camera for making this project or alternatively make an AC operated xenon tube flasher circuit at home and then use it for the proposed UV water purifier circuit.
A simple xenon flash circuit can be seen in the following diagram:
The explanation for the above circuit diagram can be found HERE
After making the above circuit, the lamp may be positioned such that the rays are able to traverse past the water from one end to the other end.
Make sure the water is clear and free from dust particles because suspended impurities will block most of the UV rays making life easy for the germs.
Also remember, the flash bulb should be paced directly face to face with the water surface, if it's placed outside the bottle or the container, the material would block most of the rays making things ineffective. You may refer to the following layout example.
Another potential source of UV light are electric arcs, we all are aware the adverse effects a welding arc introduces to the person using it, simply shows the radiation level generated from these sources.
We can put these devices for disinfecting water tanks or containers by creating electric arcs inside the tanks or smaller household enclosures.
Ofcourse nobody would want to use welding machine for implementing this, a simpler option would be to use a capacitive discharge circuit as used in motorbikes for generating ignition sparks.
For the above results you may try the following circuit:
The entire explanation can be read HERE
Again as discussed above, the arcs must "see" the water directly and not through a transparent medium or through the enclosure, as shown in the following example:
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