WADI by Helioz

An inexpensive and sustainable solar water disinfection tool


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Vienna, Austria
AT Austria
Web http://www.helioz.org/en-gb/home/aboutwadi/faq.aspx

In development

About the project Edit

Helioz is an Austrian social enterprise start-up that provides affordable and efficient tools to low-income households, humanitarian organizations and emergency aid organizations around the globe. They are a dedicated team of medical doctors, economists, scientific researchers and project coordinators with partners around the globe to bring safe water to people living at the bottom-of-the-pyramid (BoP) throughout the world.

They've developed an inexpensive device to guarantee safe drinking water using only solar power: WADI!


In what ways is this project unique and creative? Edit

WADI (water disinfection) is a sustainable and cost-efficient tool that helps track the progress of solar water disinfection in a PET-bottle filled with non-potable water.

Chlorine tablets are presently the only other viable alternative to the boiling of water and receive wide-spread support of NGOs. Chlorine tablets, however, are often inaccessible for the world’s poor. What adds to this is the unpleasant taste that chlorine leaves in the water!

WADI doesn’t require boiling, chlorine tablets or batteries - it uses solar power and is based on the SODIS method. WADI detects and calculates the relevant UV-rays of the sun that purify the water, and lets the user know as soon as the water is safe to drink.

What is the social value of this project? Edit

Wadi is an inexpensive and easy-to-use water disinfection tool that can fight the illnesses and deaths caused by diseases in developing countries derived from insufficient or contaminated drinking water supply.
Its use is simple and does not need any particular training on part of the end customer. It is put on a water-filled PET bottle like a screw cap and indicates the microbial reduction in the water through solar disinfection - illustrated by a smiley face. With its built-in solar panel, WADI works energy self-sufficient and is guaranteed to be maintenance-free for at least two years.

What is the potential of this project to expand and develop? Edit

WADI has been featured in the international press, won 19 awards and has been invited to several international events.

They have already tested this device in the field in India and Africa and one of their project partners there, Austria's largest health-care NPO the Arbeiter Samariter Bund, has concluded that: "WADI is a viable solution for clean and safe drinking water, especially for the impoverished rural population."

With help, they can conduct a comprehensive Health Impact Study in India to provide large-scale evidence of WADI's effectiveness in reducing waterborne diseases. The study will allow them to better understand and respond to specific needs of those affected by waterborne diseases and the NPO/NGO organisations that serve them. This knowledge will enable them to foster the necessary partnerships for bridging the last mile and allow us to innovate micro-entrepreunrial business models that integrate locals into the value chain and further reduce the impact of poverty.
With the funds they raise on Indiegogo ( http://www.indiegogo.com/projects/helioz-wadi-a-new-inexpensive-and-sustainable-solar-water-disinfection-tool ) we will conduct a scientific health impact study (HIS) in the Indian state of Odisha. Odisha has the third highest under-5 mortality rate in all of India, leading to around 80 child deaths per 1,000 births.

What was the triggering factor of this project? Edit

Worldwide, there are over 780 million people without access to an improved drinking water source. An additional 1.5 billion people have just limited access to safe drinking water. The problem is usually not water shortage as such, but lack of disinfected, drinkable water. In Africa, Asia and South America, the water is often contaminated with coliform bacteria, viruses, and other kinds of pathogens.

According to the UN, 80% of all illnesses and deaths caused by diseases in developing countries derive from insufficient or contaminated drinking water supply. Over 50% of all hospital beds in developing countries are occupied by people who suffer from diseases caused by contaminated water. And it is always the most vulnerable who have to pay the highest price: Each year, 1.5 million children under the age of five die because of unsafe water. This is equal to around 4,000 children every day.

What is the business model of this project? Edit


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