- 02 June, 2026
June 2, 2026: What commenced as a straightforward worry regarding contaminated drinking water has now gained three Indian adolescents global recognition for environmental innovation.
Sixteen-year-olds Vivaan Chhawchharia, Ariana Agarwal, and Avyana Mehta were declared the Asia winners of The Earth Prize 2026 for creating “Plas-Stick,” a biodegradable solution designed to eliminate microplastics from water utilising powdered tamarind seeds.
The concept reportedly arose after the students visited rural communities where families kept drinking water in large communal containers without access to sophisticated filtration systems.
During one visit, observing a child drink from one of the containers drew attention to the growing problem of invisible microplastic contamination in everyday drinking water.
What Is 'Plas-Stick'?
Plas-Stick is a biodegradable powder principally created from tamarind seed waste. According to the students, when the powder is added to contaminated water, it attracts microplastic particles and causes them to combine into larger clumps. These clumps can then reportedly be removed utilising a handheld magnet.
Because the solution utilises biodegradable, locally available materials and does not require electricity or costly infrastructure, the students believe it could be useful in rural and low-resource communities.
Collaboration With IIT Guwahati
The students also collaborated with experts from Indian Institute of Technology Guwahati whilst developing the project.
Growing Concerns Around Microplastics
Microplastics are extremely tiny plastic particles, usually measuring less than five millimetres, formed from the breakdown of larger plastics, synthetic clothing fibres, industrial waste, and packaging materials.
Recent scientific studies have detected microplastics in drinking water, seafood, human blood, lungs, placentas, and even brain tissue. Whilst researchers are still studying the long-term health effects, many scientists consider microplastic pollution an emerging global environmental concern.
About The Earth Prize
The Earth Foundation describes The Earth Prize as the world's largest environmental competition and “ideas incubator” for teenagers aged 13 to 19.
Clarification on Prize Money
Several viral social media posts incorrectly claimed that each student individually received $125,000. However, official information released by The Earth Prize confirmed that the team collectively received a regional award grant of $12,500.
One of the project's most innovative features is its utilisation of tamarind seed waste. Tamarind seeds naturally contain binding compounds that may help attract and bind particles in water.
By utilising agricultural waste instead of synthetic chemicals, the students created a low-cost and biodegradable solution whilst highlighting how locally available resources can support environmental innovation.
Still in Development Stage
Although the project has received international recognition, Plas-Stick is still under development and has not yet undergone large-scale independent scientific testing. Further validation and testing would be required before the solution can be implemented on a wider scale.
Courtesy: The Economic Times
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