Today’s Solutions: January 19, 2022

India is home to 22 of the world’s 30 most polluted cities, contributing to high levels of lung and heart disease. Growing up in Mumbai, Angad Daryani experienced the negative health consequences of smog in the form of childhood asthma. Seeking a solution, he came up with the idea to take soot and other polluting particles and turn them into a useful material: building tiles.

While studying at the Georgia Institute of Technology, Daryani came up with an outdoor purification system that removes particles from the air and sucks them into a container. This captured pollution is then given to another company, Carbon Craft Design, which combines it with stone waste from quarries and a binding agent to create floor tiles.

The pollution-capturing devices are 76cm tall and can be mounted onto street lamps, schools, or apartment buildings. They can filter 300 cubic feet of air per minute and store 11,540 cubic centimeters of pollutants. The device doesn’t use a filter, which cuts down on waste and cost, making the cost for two filters $1,830 (135,000 Indian rupees/£1,329). Each filter has a collection chamber to capture the pollutants that need to be emptied out every six months or so, depending on location.

Daryani has recently raised $1.5 million in funding to conduct pilot testing of his filters in schools, hotels, and industrial projects. He is also working on making the devices more affordable so they can be deployed where they are most needed. “Many of the world’s most polluted countries are among the poorest,” Daryani told the BBC. “Poor people work in factories, build the streets and infrastructure, and take public transport to get to work. They live and work in the most polluted environments.”

Solutions News Source Print this article
More of Today's Solutions

The Philippines bans child marriage to help stop child abuse

According to a report issued last year by the United Nations Children’s Fund, more than half a billion girls and women across the globe were married as children, meaning under the age of majority (18). ... Read More

This circular leather alternative is made from algae and peels

As people are increasingly becoming reluctant to use clothes and fashion accessories made out of animal-sourced leather, more and more designers are turning their eyes towards more sustainable and ethical alternatives. One of the latest ... Read More

Rapidly retrofitting old buildings is key for climate goals – Here̵...

Buildings account for about 40 percent of annual global carbon emissions. In order to meet our climate goals, every building on the planet will have to be net-zero by 2050. But since most of the ... Read More

IKEA buys land ravaged by hurricane to transform into forests

The Optimist Daily has shared several stories about the popular Swedish furniture company IKEA and its environmentally friendly initiatives such as its buyback and resell program, its pledge to stop using plastic packaging, its zero-waste ... Read More

This market is tossing “use-by” dates to help curb food waste

The British supermarket Morrisons has decided to remove “use-by” dates on milk packaging by the end of the month in an effort to save millions of pints of milk from being needlessly thrown away each ... Read More

The population of Ugandan tree-climbing lions is growing

One of the only populations of Ishasha tree-climbing lions in the world resides in Uganda’s Queen Elizabeth National Park (QENP). Unfortunately, the population faces numerous threats such as loss of habitat, climate change, and illegal ... Read More