Two Change Makers Who are Tackling Hygienic Sanitation on #WorldToiletDay


One third of the world’s population does not have access to a basic toilet. On #WorldToiletDay, they are telling us, #WeCantWait. Isabel Medem and David Auerbach are doing something about that.

November 19 is World Toilet Day. Why? Because globally, about 2.4 billion people, about one-third of the world’s population, do not have access to a basic toilet. Sanitation-related illnesses kill over a thousand children per day. This problem is compounded by the concentration of informal housing in urban setting.

This week I spoke to two change makers who are doing something about hygienic sanitation, David Auerbach of Sanergy and Isabel Medem of X-Runner Ventures.

Social Entrepreneurship Ideas


David’s mother was a psychologist and social worker. His father was an economist. It seems to him, that he has always been thinking of social justice. When David was a teacher in rural China, he saw first-hand a lack of hygienic sanitation.

In 2010, David and his cofounders participated in the Development Ventures class at MIT. The team quickly settled as hygienic sanitation (read that toilets) as the problem that they were going to tackle. In January 2011, they traveled to the urban slums near Nairobi, Kenya where they researched and confirmed their ideas.

What they found when they arrived was pit latrines, not much more than a hole in the ground with some tin and wood tacked up for privacy. Otherwise, people would use what are euphemistically called “flying toilets,” which were simply plastic bags that are subsequently discarded in the roads and waterways. In fact, over 90% of the waste is never treated and ends up in the waterways, spreading disease.

In 2011, the team started Sanergy, a social enterprise that is working to improve access to hygienic sanitation for residents of urban slums, starting in Nairobi, Kenya. Sanergy built and launched their first toilet on World Toilet Day in 2011.

Sanergy has developed an aspirational brand, Fresh Life, which they distribute in a franchise model. Sanergy uses a full value-chain approach: build, collect and convert. They sell the toilets to franchisees who are residents of the community. The franchisee charges a few cents per use. Sanergy provides training, branding, marketing, government & community relations. They collect, process and treat the waste. The waste is then converted to nutrient rich fertilizer.

Sanergy is creating jobs. 93% of their employees are Kenyans and 60% are from the informal housing community.

You can hear my conversation with David on the Social Entrepreneur podcast here. You can also subscribe on iTunes, Stitcher Radio or Soundcloud. You can learn more about Sanergy here.

X-Runner Venture

This week I also spoke with Isabel Medem about her work in hygienic sanitation in Lima, Peru. X-Runner Venture is a social enterprise that brings toilets to the residents of informal housing.

After university, Isabel worked in microfinance in Africa. Later, when living in Berlin, she met her cofounder, Jessica Altenburger, who was working on hygienic sanitation. After a pilot program in India, they found that they had a great solution, but it was not yet suited for the Indian market. Because Isabel had family ties to Peru, she and Jessie launched a second pilot in Lima, Peru.

Why Lima? Lima is the second driest capitals on earth. In the informal housing communities, many people resort to pit latrines which spread disease. Because the pit latrines are dug near the houses, they can cause the ground on which the houses are built to become unstable. Some people try to delay using the pit latrines, which can cause further health problems.

X-Runner uses a portable dry toilet that can be placed inside of informal houses. Their workers come to the neighborhood where they pick up the waste and take it away for processing. The sanitized, processed waste can be used for fertilizer. Today, their toilets are in about 400 households.

I was particularly impressed to learn that X-Runner uses mobile technology throughout their system from installation to pickup to impact measurements. As we were speaking, Isabel and the team were busily installing Salesforce.

You can hear my conversation with Isabel on the Social Entrepreneur podcast here. You can also subscribe on iTunes, Stitcher Radio or Soundcloud. You can learn more about X-Runner Venture here.

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About the Author
Tony Loyd is a leadership development expert. He is a best-selling author, keynote speaker, and coach. He helps purpose-driven business leaders to thrive so that they can connect and contribute at a deeper level. Find out more at

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