UV-based filter.
Project data
Status Prototyped
Made? Yes
Replicated? No
Uses solar, filter, water
Export to Open Know How Manifest
Page data
Keywords water, filter
Aliases UVC filter
Authors User:Priyanka Gharat
Published 2021
License CC BY-SA 4.0
Affiliations Vigyan Ashram
Page views 428
Location data
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Location Pabal, India

This paragraph will appear in search results and previews for this page. Write a brief introductory text with information such as a description of your project, when was it designed and built, your motivation to solve the problem, the intended users. This will explain your project to someone who has never heard of it before.

Background[edit | edit source]

Describe the background of the project. Make sure to cover who, what, why, when and where…

Today, 70% of villages in India depend on groundwater for drinking water. Clean water is essential for every human being, for drinking, cooking and other daily uses. Availability of potable drinking water remains a challenge in rural areas in several parts of the country. Commercially available water filters are costly, reverse osmosis (RO)-based purifiers waste a lot of water. As per the research contaminated water leads to diseases like- diarrhea, cholera, dysentery, typhoid and is estimated to cause 502000 diarrhea deaths each year. Some 844 million people will lack basic drinking water and another 159 million will be dependent on untreated surface water sources. The regular tap water being supplied in your home might seem clear but possess various sorts of health-affecting bacteria and viruses such as fluorine compounds, chlorine, lead, pesticides and other types of waste particles. Clean and safe water is a fundamental human need.

UVC filters[edit | edit source]

UVC light is part of the electromagnetic spectrum that spans 100-400nm. It is divided into 3 types UVA, UVB and UVC. UVC is an invisible light spanning the range of 100-280nm and has powerful germicidal properties so UVC light is used as a disinfectant for water, surface, air etc. Ultra Violet disinfection usually involves a UV lamp. The UV lamp is used to provide pure and safe drinking water. The UV light used in this process is a high-powered UV termed UV-C or germicidal UV. UVC rays have the shortest wavelength, and therefore highest energy, they are capable of killing bacteria and viruses, also called pathogens. Water is disinfected as it runs through a stainless steel chamber containing a UV lamp. As water flows past the lamp, illness-causing microorganisms receive a lethal dose of UV light that attacks their DNA and eliminates their ability to reproduce. Harmful bacteria and viruses are deactivated, and your family is safe.

Under no circumstances should you stare at a UV-C light source for any amount of time. When UV-C light shines on water or if the bulb is immersed in the water, some of the light penetrates the water and is absorbed by germs, such as bacteria and viruses, in the water. The average bacterium will be killed in ten seconds at a distance of six inches from the lamp in an American Ultraviolet Germicidal Fixture. UV light can have efficient inactivation of bacteria up to a distance of eight feet on either side and exposure time of 30 minutes is adequate. The medical profession was the first to endorse the germicidal effect of UV lamps and it has been used traditionally to disinfect operation theaters.

UV light is a natural process and does not produce harmful chemicals in water. It's a safe, effective and environmentally friendly disinfection method that is widely used for residential and industrial applications around the world.

Ultraviolet purification advantages[edit | edit source]

  • Chemical Free: UV purification does not use any chemicals like chlorine or leave any harmful by products.
  • Taste & Odor Free: UV does not add any chemical taste or odor to the water.
  • Extremely Effective: One of the most effective ways to kill disease-causing microbes by destroying 99.99%.
  • Requires very little energy: Uses about the same energy as it would to run a 60-Watt light bulb.
  • Low Maintenance: Set and forget type of system, just change the UV bulb annually.

Limitations in UV water systems[edit | edit source]

  • Ultraviolet purification itself is not enough to purify water down to drinking water purposes. This is because the UV radiation is only effective for treating bacteria and viruses. UV light does not work to eliminate contaminants such as chlorine, heavy metals and VOC's (Volatile Organic Compounds). UV systems are often paired with Reverse Osmosis Systems to provide a complete purification process for the safest drinking water.

Construction[edit | edit source]

A very complete description of how the final project is built. This large section should have lots of pictures. Use the Help:Images#Galleries and probably Template:Steps (e.g. Barrel O' Fun Worm Bin Instructions).

Bill of materials[edit | edit source]

Description of costs, donations, the fact that this is just proposed, etc. For a simple cost table, see Help:Table examples#Cost Table and Template:Bill of materials for two nice formats.

Item Amount Cost per unit Total
Inverter — 100W 1 Rs 4,900.00 Rs 4,900.00
Panel — 20W 1 Rs 850.00 Rs 850.00
Battery — 12V,7Ah 1 Rs 1,000.00 Rs 1,000.00
Grand total Rs 6,750.00

Instructions[edit | edit source]

This is a plan to maintain your project. The step by step how to template {{Steps}} is most likely the best way to display a process, which will look like this:

Barb. Palstek AL1.jpg
Do this.
Barb. Palstek AL2.jpg
Do that.
Brief description of the image.
Do more.
Here may go a longer text explaining the step in more detail.

Conclusion[edit | edit source]

Final comments.

References[edit | edit source]