Eshani Jha: The teen’s bio-waste filtration device can increase access to clean water

(June 17, 2023) Eshani Jha was only 17 years old when she created a low-cost, water filtration device to address the problem of clean water around the world. In 2021, just as the San Jose teen entered the University of Berkley, she was named winner of the Stockholm Junior Water Prize for her innovative, low-cost, water filtration device, which uses treated biochar as a filtering material. Eshani received a blue crystal award, a handmade diploma and a cash prize of $15,000 awarded by the Stockholm International Water Institute. Her work is also in keeping with the UN’s SDG, in particular, SDG 6, which aims to ensure available and sustainable management of water and sanitation for all. The idea is to improve access to clean drinking water, sanitation facilities and hygiene practices, while addressing water scarcity, water pollution and water-related ecosystems.

The clean water challenge

“Water contamination is a key challenge of modern civilisation,” the Global Indian said. “Nearly half the world’s hospital beds are filled with patients suffering from water-related diseases. According to the UN’s Environment Program, 80 percent of global wastewater goes untreated and contains a wide range of contaminants, from human waste to toxic industrial discharge. Severe pathogenic pollution affects around one-third of the world’s rivers. Correct water filters are inaccessible to those who need them dueto tradeoffs between cost and effectiveness,” the young innovator remarked. Her invention, she says, can lower the cost of use to less than $1 per month for consumers, if it is mass-produced.

Young innovator Eshani Jha

The San Jose- teen is the winner of two of the top competitions for science and innovation – the Stockholm Junior Water Prize and the Regeneron Science Talent Search 2021. Eshani received recognition and a cash prize of US$150,000 for her innovative low-cost water filtration device called Biochar. Her invention not only removes heavy metals like lead but also addresses pesticides, microplastics, and pharmaceuticals in drinking water. Inspired by her Indian heritage and witnessing the plight of underprivileged communities during a trip, Eshani is determined to provide accessible solutions for water contamination issues. “I see a multitude of applications for this, and I also see great potential in targeting other contaminants too,” Jha said. “My ambition is that this should be a one-stop filter.”

The journey to the Stockholm Junior Water Prize

Jha’s research is titled ‘Thiol Functionalized and Manganese Dioxide Doped Biochar for the Removal of Toxic Organic and Inorganic Contaminants from Water” It was chosen for its applicability, the choice of a commonly-available material (biochar) and its potential for scaleability, the Stockholm International Water Instititute said later.

The young innovator began her work when she was a student at Lymbrook High School in San Jose, and was first recognized by the California Stockholm Water and Environment Association. Her research was chosen by a panel of engineering professors and board members of the CWEA, after which she went on to represent her state at a competition hosted by the Water Environment Federation. After being declared the winner there too, she went on to the SIWI international platform, competing against 44 finalists from 32 countries.

Eshani Jha’s remarkable journey from a high school student to an internationally recognized innovator serves as an inspiration to young minds around the world. Her determination to address the global water crisis has led to the creation of a low-cost water filtration device that holds the potential greatly increase access to clean water.

Receiving the Stockholm Junior Water Prize and the Regeneron Science Talent Search 2021 accolades further solidifies Eshani’s place as a pioneering force in the field of science and innovation. The recognition and cash prizes she has received not only validate her groundbreaking work but also provide her with the resources to continue her research and bring her vision to life.

Re-purposing bio waste

Eshani’s invention, Biochar, not only filters out heavy metals but also tackles contaminants like pesticides, microplastics, and pharmaceuticals, ensuring cleaner and safer drinking water. Her commitment to addressing water pollution and scarcity aligns perfectly with the United Nations’ Sustainable Development Goal 6, underscoring the relevance and impact of her work on a global scale.

With a clear vision of expanding the application of her filtration device to target other contaminants, the young innovator is determined to provide accessible solutions for water contamination. As Eshani Jha continues her journey at the University of Berkeley, her innovative spirit and dedication will undoubtedly shape the future of water filtration technologies. Through her groundbreaking research, she has opened doors to a world where clean drinking water is not a luxury but a fundamental right for all.