I am a Year 12 student at Dartford Grammar School for Boys with a strong interest in science, technology, and understanding how the world works. I enjoy learning across a range of subjects, particularly those that combine analytical thinking with creativity and problem-solving. Outside the classroom, I am motivated by curiosity and enjoy exploring new ideas, developing practical skills, and taking on challenging projects. I am particularly interested in how innovation can be used to address real-world environmental and societal challenges. Through my studies and extracurricular activities, I aim to continue developing the knowledge and skills needed to make a meaningful impact in the future.
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Manager for Stockholm Junior Water Prize
Alia Baidoun
2026•Devansh Srivastava
Hydrological Nitrate Response Monitoring with Integrated Biochar Remediation Assessment
Nitrate contamination in UK agricultural watercourses remains a major issue, but existing monitoring methods are often too costly for farm-scale use. This project introduces NitroGauge, a £190 manometric nitrate monitor, alongside BioFix, a biochar-based remediation column. Tested across three sites over sixteen visits, NitroGauge identified rainfall-lag patterns suggesting different subsurface flow pathways. BioFix improved through successive designs, with removal increasing from 12.5–36.5% using raw biochar to 63.5–66.5% with FeCl₃ modification and 81.2–84.0% using a two-zone biological system. The prototype costs over 99% less than commercial sensors, and future designs will enable autonomous deployment. Findings remain preliminary due to the limited sample size.
