Project data
Device data
Hardware license CERN-OHL-S Start OSHWA certification

## Idea origin

It was a process that was ignited by Mrs.Isha Ray, an Assistant Professor at the Energy and Resources Group, UC Berkeley came to my school, Mallya Aditi International School, Bangalore to address the problem of water scarcity. The idea, like any other, evolved over time. However a significant point in the development was when I read an article regarding the TATASwach on their website.

## Novelty

It will cost about Rs.650, including overheads. Although it has other merits, i want to shed light on the fact that in a country like India cost is and will reamain the most important.

## Idea development and experimentation

For the purpose of simplicity, I divided my experiment into three parts; First, I made a homemade filter using 4 grams of Nano carbon tubes, a plastic bottle and cotton, followed by one using Coconut Husk Fibre (Coconut Husk Ash is commonly used in commercialized water filters) and in the third I used varied proportions of each of them.

During the run of the experiment, which involved titration, h2S strips and home water tests, the indicators were kept constant. They're based on IS 10500: 1991 (Indian Water Standards).

The results (94-99% purity) showed that there was a limit to which how much rice husk can be added before the effect saturates.

The cost reduction possibilities are limitless.

## References

Though there is plenty of cited literature on the internet regarding the issue, I also referred to Last Oasis: Facing Water Scarcity (The Worldwatch Environmental Alert Series) for a deeper understanding on the issue.

An URL i used constantly was :eHow.com http://www.ehow.com/how 378 test-water-purity.html#ixzz0yCXxQWAs/

Page data
Type Project, Device water purifier, water, water filters, nanocarbon tubes, rice husk, plastic bottles SDG06 Clean water and sanitation 2010 CC-BY-SA-4.0 299 No main image "The Life Bowl : Low cost water purifier". Appropedia. 2010. Retrieved August 15, 2022.
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