Introduction: Portable UV LED Water Purifier

Outdoor water get's contaminated , consists of several bacteria and virus' and it is unhealthy to drink that water

Coming to the point ultra violet light has a property to kill the bacteria and virus's , bacteria cannot grow and sustain to the wavelength of UV

Based on this property we are going to build a portable water purifier to know more about the UV purification watch this video

Step 1: Parts Needed

PARTS REQUIRED

1) UV LED

2) 10 K RESISTOR

3) SODA BOTTLE

4) AN EXTRA CAP

5) 9 V BATTERY AND ADAPTER

Step 2: TOOLS REQUIRED

1) SOLDERING EQUIPMENT

2) THUMB PIN

3) CUTTERS OR SCISSORS

4) HOT GLUE GUN

Step 3: MAKING

1) First take the old soda bottle remove the cap and make two holes

2) Insert the led from the inner portion of the cap such that the led terminals comes out of the cap and seal with hot glue and make sure that it is leak proof and the terminals of the led are not in contact with water

3) The bigger terminal of the led is always positive and the smaller one is negative

4) Take an another cap of same size and make two holes and insert the wires

5) Now make the connections as show in the above circuit

6) place the second cap on the first cap and seal it with hot glue properly , before sealing make sure the led is working properly

Step 4: Working

Comments

author
ad2034 (author)2017-04-08

Hi mate, Very cool idea! I think the LED you have used emits UVA which is the least harmful to DNA so not sure it would destroy bacteria. Im no expert and hope I'm wrong, you should check before you drink the water

author
miraclerandy (author)ad20342017-04-08

Yes, you're right, uva will take a long time to kill bacteria in water. You might as well leave it out in the sun all day.
The type of led lamp you'll need is uvc, specifically 260-270 nm. I know Nikkiso makes some of the most powerful around that wavelength.
Another topic that takes more time is an effective reactor body which isn't mentioned at all. Basically you cant be sure all the bacteria had enough exposure time near the light source.

author
The Science Brony (author)2017-04-07

Huh, this is interesting. It can be used for survival scenarios. You have my vote

author

Thank-you ?