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Clay Filters are Simple Solution for Clean Water

By David SouthDevelopment Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Access to clean water is critical to good health. It is a basic human need that when met, leads to the biggest improvements in health and well-being. Dirty water causes diarrhoea (http://en.wikipedia.org/wiki/Diarrhea), cholera and typhoid. Diseases caused by dirty drinking water kill almost 5,000 children a day around the world (WHO).

But millions have benefited from a simple solution using clay filters invented and pioneered in Central America, and now manufactured by 28 small factories in 23 countries – the largest in Ghana and Cambodia. Each factory makes up to several thousand filters a day. They offer an ingenious solution that also creates local jobs and skills.

Looking like 30 centimetre-high flowerpots, the filters designed by Guatemalan chemist Fernando Mazariegos blend local clay and plant husks to create a filter capable of killing 98 percent of the contaminants that cause diarrhoea. The husks are burnt away when the filters are fired in a kiln, creating tiny holes that filter out harmful organisms. A coating of colloidal silver (http://en.wikipedia.org/wiki/Colloidal_silver) is painted on the filters after they have been fired in the kiln.

“Each filter can support a family of six,” said Kaira Wagoner, Coordinator of Ceramic Water Filter Projects with the NGO Potters for Peace (www.pottersforpeace.org). Founded in Nicaragua but now US-based, Potters for Peace has popularized the filters and helps with all the training and support required to establish the workshops and market the filters.

The first filter-making workshop was set up in Managua, Nicaragua after Hurricane Mitch in 1999 (http://en.wikipedia.org/wiki/Hurricane_Mitch). That workshop has made and distributed 40,000 filters through the Red Cross and NGOs such as Medecins Sans Frontieres/Doctors Without Borders. Potters for Peace has now stopped running workshops and factories themselves, and provides others with the training and advice necessary to produce clay filters.

To work, the filters are placed in a plastic bucket, a spigot added, and a cover put on top to prevent contamination. The filters are capable of filtering four litres of water an hour.

The genius behind the filters is the fact they can be made by small, local workshops – making access to clean water available anywhere, and creating jobs. Just three to four people can produce up to 50 filters a day. According to tests by the Family Foundation of the Americas, a Guatemalan NGO, the filters halve the incidence of diarrhoea in households that use them.

“The cost of establishing a workshop varies largely,” said Wagoner, “depending on the factory’s location, desired production – from 50 per day to 1000 per day – and on the equipment already available in the potter’s workshop. Potters for Peace generally tries to work with potters who already have some of the needed equipment, such as a hammer mill and clay mixer.

“Filters are distributed hand in hand with health and sanitation information which highlights practices such as hand washing,” said Wagoner. “Since many individuals would otherwise boil their water, the filter significantly reduces the time many women would spend gathering firewood. This gives them time for other things such as school and income generating activities, and is better for the environment, especially in locations where problems with deforestation are significant.”

Experience has found marketing is key to the successful adoption of the filters by communities.

“It is very difficult to create a market in a region of poverty,” said Beverly Pillars, also from Potters for Peace, “and to gain acceptance of a new product that the community will want to purchase to keep a workshop sustainable. NGOs may distribute the ceramic water filters, but for the community to fully accept the idea of seeking out clean, safe drinking water on their own, we urge the local owners of the factory to be innovative in marketing.

“Our best approach has been to select partners in developing areas that have some experience such as a potter or brick maker, and help them to find methods that work in their communities to distribute as many of the ceramic water filters as possible, such as a distribution link through local health centres and small corner markets, adds in Yellow Pages, road signs.”

To get a workshop up and running, they need to have a machine to press the clay filters, a kiln to fire them, and a pyrometer (http://en.wikipedia.org/wiki/Pyrometer) to measure the temperature of the kiln. It usually takes between three and six weeks of training to become proficient at making the filters. Trainers help with acquiring the proper equipment, building the kiln, the clay filter formula, quality control procedures, and marketing techniques and materials.

“My advice to people wanting to start making filters is to look for local craftspeople to partner with,” said Pillars. “Look at local access to brick, clay and sawdust. Be prepared for hard and rewarding work to bring safe, clean drinking water to developing populations.

“Every location is a best location, because the demand for safe, clean drinking water worldwide is so great. The beauty of the ceramic water filter technology is that it uses very few resources: clay, sawdust or other burnout material available and bricks for a kiln. We have found these resources to be present worldwide.”

The filter has been cited by the United Nations’ Appropriate Technology Handbook, and is used by the International Red Cross and the Nobel Prize winning medical relief organization Doctors Without Borders. There are plans to start more filter factories in Cote d’Ivoire, Bolivia and Somaliland.

Published: December 2008

Resources

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator. 

Creative Commons License

This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2022

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Indian Toilet Pioneer Champions Good Ideas

By David SouthDevelopment Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Access to adequate sanitation and toilet facilities is critical to making development gains. Yet this simple fact of life often gets overlooked, especially in fast-growing cities where populations are on the rise or in transit. Out of an estimated 2.6 billion people in the world without toilets, two-thirds are in southern and eastern Asia (World Toilet Organization).

It is easy to take toilet technology for granted in developed countries, but in the fast-growing urban world of the global South, increasing access will be the dividing line between a future of good human health and dignity, or misery and poor health. The biggest gains in human health always come about once people have access to clean water and sanitation. Yet this proven fact gets lost in many places for a wide variety of reasons.

One country currently failing to meet the needs of its population is India. According to the McKinsey Global Institute, by 2030, 70 percent of India’s jobs will be created in its cities, and 590 million Indians will be city-dwellers. An enormous infrastructure task lies ahead for India: a city the size of Chicago needs to be built every year. But so far this challenge is not being met, leaving the country with the largest number of urban slum dwellers anywhere in the world. Housing is just not keeping up with populations’ needs.

As K.T. Ravindran, a professor of urban development, told the New York Times: “We require radical rethinking about urban development. It is not that there are no ideas. It is that there is no implementation of those ideas.”

It is this ability to act that makes the Sulabh International Social Service Organization stand out. The Indian non-governmental organization (NGO) sees itself as a movement and is a passionate advocate for toilets and toilet innovation for the poor and underserved.

Sulabh was founded in 1970 by Dr. Bindeshwar Pathak, who saw the vast task ahead. “I thought the challenges to provide toilet facilities have been overcome in rich countries; it has still to be met in developing countries like India,” he said.

So far, Sulabh has brought together 50,000 volunteers across the country to build toilets and sanitation facilities.

The organization’s success flows from understanding that it needs to do more than supply the ‘hardware’ of the toilets; it also needs to address the ‘software’: ideas and innovation and concepts.

The organization has directly built 1.2 million household toilets – but the government of India has built a further 54 million toilets based on the designs made by Sulabh. It’s an example of a good idea multiplying its impact when picked up by others.

While 10 million Indians use a Sulabh-built sanitation facility each day, according to the group’s website, an estimated 300 million are using a toilet based on Sulabh’s designs.

Most influential is Sulabh’s two-pit, pour-flush toilet (www.sulabhenvis.nic.in/Sulabhtechnology.htm). It consists of a toilet pan with a steep slope using gravity to flush the pan. Water is poured in to the pan to flush the toilet and the waste goes into either one of two pits. As one pit fills up with waste, waste is diverted to the second pit. After around 18 months, the first, filled pit’s waste becomes a safe, organic fertiliser suitable for agriculture and the fertiliser’s value covers the cost of emptying the pit. The successful design has been evaluated and approved by UNDP and the World Bank.

Sulabh has also been designing ways to get power and energy from toilets, building 200 biogas plants that turn the gas generated from the human excrement deposited in the toilets into a source of energy. Biogas (http://en.wikipedia.org/wiki/Biogas) is a clean-burning gas that can be made from animal, plant and human waste with the right technology and is a green solution to the need for gas to cook and run electricity generators.

Pride of place for the NGO is its vast toilet and bath complex at the holy shrine of Shri Sai Baba in Shirdi, Maharashtra (http://en.wikipedia.org/wiki/Maharashtra). Millions flock to the shrine every year, but it lacked proper sanitation facilities. To solve this problem Sulabh’s local branch has built a vast complex occupying two acres. The brightly coloured and palace-like facility has 120 toilets, 108 bathing cubicles, six dressing rooms, and urinals and can serve 30,000 people a day. There are telephones and 5,000 lockers for tourists to keep possessions safe.

There are also three biogas plants connected to the facility, generating electricity and hot water for bathing used by the toilet and bath complex. This solves the puzzle of how to fund the utilities. Water discharged from the facility is used to irrigate the surrounding green spaces.

Sulabh has also built a museum dedicated to toilets and toilet technology (http://www.sulabhtoiletmuseum.org). The museum places the toilet as a critical part of human civilisation and shows how it fits in with the cultural context of India. Toilets and toilet designs from around the world and throughout history are gathered together and make a fascinating journey through this essential human need.

Published: May 2011

Resources

1) World Toilet Organization: World Toilet Organization (WTO) is a global non- profit organization committed to improving toilet and sanitation conditions worldwide. Website: http://www.worldtoilet.org

2) World Toilet Day: On November 19 every year, this event draws attention to the lack of access for 2.6 billion people. Website: http://www.worldtoilet.org

3) Dirt: The Filthy Reality of Everyday Life: An exhibit by the prestigious Wellcome Collection on the human relationship with dirt and hygiene in history. Website:http://www.wellcomecollection.org/whats-on/exhibitions/dirt.aspx

4) World Toilet College: Established in 2005, the World Toilet College (WTC) started as a social enterprise, with the belief that there is need for an independent world body to ensure the best practices and standards in Toilet Design, Cleanliness, and Sanitation Technologies are adopted and disseminated through training. Website:http://worldtoilet.org/ourwork3.asp

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator. 

Creative Commons License

This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2022

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Brewing Prosperity Creates Good Jobs

By David SouthDevelopment Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

In the Democratic Republic of Congo – home to the world’s largest United Nations peacekeeping mission and decades of bloody civil war – a brewery has not only survived, it has thrived to become a popular brand throughout central Africa. By being a success, the Brasimba brewery has brought prosperity and high-quality jobs to Congo’s second largest city, Lubumbashi (http://en.wikipedia.org/wiki/Lubumbashi), and proven that a modern business can do well there despite the obstacles.

The Brasimba brewery has an ultra-modern factory (http://www.viddler.com/explore/kaysha/videos/298/) complete with high-tech laboratories to constantly test the quality of the beer. It employs 700 people – most of whom are Congolese – and produces 250,000 bottles of Simba beer every day, according to Monocle magazine. The company’s beer brands are Simba Biere du Lion and Tembo Biere and its slogan is a proud Notre Biere (Our Beer).

Lubumbashi is a city described by the BBC as without “child beggars, without potholes and where there are no festering mounds of rubbish.”

A study of the economic impact of breweries in Uganda and Honduras found that more than 100 local jobs, from farmers to truck drivers, depended on every person employed by a brewery (http://www.inclusivebusiness.org/2009/10/sabmiller-impact-assessment.html). Markets across the South are seen as growth areas for beer companies: China’s beer consumers now outnumber those in the U.S. By 2003, world sales of beer reached 148 billion hectolitres (Euromonitor). Overall, it is forecast that global beer consumption will rise by 3.5 percent by 2015, mostly in the South.

Apart from creating steady employment, breweries also help to improve the development of the advertising and marketing businesses of a community as they promote their various brands, and they support local activities like sport with team sponsorship. They also offer a local example of how to run a modern beverage business, with mechanized production, distribution systems and laboratories to ensure hygiene and quality standards are maintained.

Brasimba has been operating in Lubumbashi for eight decades, through the twists and turns of the country’s history. The city has prospered from its copper mines and wisely used that wealth to improve the city’s general prosperity.

The brewery has successfully become a regional favourite, producing beer that is drunk not only in the surrounding Katanga province, but also in Zimbabwe and Zambia. It’s an impressive accomplishment for a company operating in such a turbulent environment. Distribution of the beer by truck is not easy, with the trip taking between six days and two weeks depending on the weather and the condition of the roads.

And the beer is not cheap, at around US $1.48 for a big bottle — a sure sign there is money to be made.

The healthy economic environment has also spawned a beer war with rivals Bralima, owned by the multinational Heineken. With five breweries in Congo and its head office in the capital Kinshasa, Heineken claims the lessons it has learned in Congo are helping it to change its marketing and business strategies far away in the United States.

It recently transferred its commercial director of Congo operations to head up operations in the United States. Heineken Chief Executive Officer Jean-Francois van Boxmeer told the Bloomberg news agency that working in Africa was “certainly worth three times Harvard Business School.”

Heineken’s market share doubled in the Democratic Republic of Congo in just four years and Africa has become a significant market for the brewer.

Published: December 2009

Resources

  • Small businesses looking to develop their brand can find plenty of free advice and resources here: Website: http://www.brandingstrategyinsider.com
  • A Brandchannel: The world’s only online exchange about branding, packed with resources, debates and contacts to help businesses intelligently build their brand. Website: http://www.brandchannel.com
  • Just Food is a web portal packed with the latest news on the global food industry and packed with events and special briefings to fill entrepreneurs in on the difficult issues and constantly shifting market demands. Website: http://www.just-food.com

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator. 

Creative Commons License

This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2022

Categories
Archive

Small-scale Farmers Can Fight Malaria Battle

By David SouthDevelopment Challenges, South-South Solutions

SOUTH-SOUTH CASE STUDY

Malaria is one of Africa’s biggest killers. Each year globally 300 to 500 million people are infected, and around 1 million die from the disease (theglobalfund). Ninety percent of malaria deaths occur in sub-Saharan Africa – mostly to children under the age of five. The disease costs African countries US$12 billion a year in lost gross domestic product.

Malaria is a parasitic disease – the parasite plasmodium – transmitted by mosquito bites. Symptoms include fever, headache and vomiting. Internal bleeding, kidney and liver failure may follow and can result in coma and death.

The most common and effective treatment, recommended by the World Health Organization, is artemisinin-based combination therapies, known as ACTs. ACTs have low toxicity, few side effects and act rapidly against the parasite. Research shows that artemisinin remedies cure 90 percent of patients within three days.

But there are far fewer doses available than people who need them. WHO has claimed the quantity made available by pharmaceutical companies falls far short of the more than 130 million doses required to combat malaria throughout the world.

And ACTs are very expensive to deliver: in just one country, Tanzania, providing such therapy for three years would cost US $48.3 million. Every year, this would account for 9.5 percent of Tanzania’s health budget, and 28.7 percent of yearly spending on medical supplies: a six-fold increase in budget for malaria treatment (Malaria Journal 2008, 7:4).

But a cheap alternative to the expensive pill form of the treatment is being piloted across Africa. It involves the drinking of a tea made from the bushes of the artemisia plant. Artemisia annua is an annual shrub and the active ingredient in the pills (artemisinin). It is native to China and Vietnam and has been used for 2,000 years to treat fevers.

Bushes cultivated by farmers in Kenya, Malawi, Tanzania, Zambia, Zimbabwe and Mozambique under the supervision of the World Agroforestry Centre in Nairobi, Kenya, are helping to bring down malaria rates without the long wait for the pills to arrive.

The leaves are boiled and made into a tea. Drinking the tea gives a high enough dose of artemisinin in the blood to cure malaria. Helen Meyer, a nurse operating nine mobile health clinics in rural Mozambique, is using the bitter tea made from the dried leaves. Even in treating drug resistant malaria, she has found the artemisia tea effective: “If you drink the tea, you feel better after the first day. Other medicines take a few days.”

A special hybrid of artemisia, A-3, is used because it is adapted for warmer climates. The wild variety grows to only five centimetres in the tropics, but A-3 grows to three metres and packs 20 times more artemisinin. It is also highly economical: thousands of plants can come from a single stem.

The daily adult dose of anti-malaria tea just needs five grams of dried A-3 leaves in one litre of water. The tea is drunk every six hours for seven days. Each plant produces 200 grams of dried leaves, and a thousand shrubs can cure 5,700 people. Since it is a cheap cure, money can be spent instead on other things. Farmers are also able to supplement their income by growing the bushes. And the dried leaves have long-lasting power: even after three years the leaves retain close to a 100 percent of their artemisinin.

Access to authentic artemisinin is critical: it is estimated 16 percent of malaria medicines in Kenya are counterfeit. Elsewhere, the proliferation of counterfeit anti-malarials substantially raises the risk of the emergence of resistance to artemesinin combination therapy, the last truly effective treatment against malaria. Past misuse of other malaria drugs, such as chloroquine in the 1980s and sulphadoxine/pyrimethamine in the 1990s, resulted in the malaria parasite becoming resistant. Hundreds of thousands of people in malaria-prone areas may have died as a result.

The World Agroforestry Centre, recognizing potential problems with artemesinin monotherapies, is working to combine it with indigenous herbal remedies made from other anti-malarial trees, producing a herbal combination therapy (HCT).

“I used to grow fruits and beans here,” said Charles Kiruthi, a Kenyan farmer, to the IRIN news service. “but I will get a better return from this plant. No pests attack it, and until harvesting time it requires very little labour.”

“I expect to get a good return, and I am also very happy to be helping fight malaria,” continued Kiruthi. “I recently lost two friends to the disease, and my child gets sick with malaria sometimes.”

Published: July 2008

Resources

Development Challenges, South-South Solutions was launched as an e-newsletter in 2006 by UNDP’s South-South Cooperation Unit (now the United Nations Office for South-South Cooperation) based in New York, USA. It led on profiling the rise of the global South as an economic powerhouse and was one of the first regular publications to champion the global South’s innovators, entrepreneurs, and pioneers. It tracked the key trends that are now so profoundly reshaping how development is seen and done. This includes the rapid take-up of mobile phones and information technology in the global South (as profiled in the first issue of magazine Southern Innovator), the move to becoming a majority urban world, a growing global innovator culture, and the plethora of solutions being developed in the global South to tackle its problems and improve living conditions and boost human development. The success of the e-newsletter led to the launch of the magazine Southern Innovator. 

Creative Commons License

This work is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License.

ORCID iD: https://orcid.org/0000-0001-5311-1052.

© David South Consulting 2022