๐ŸŒŠ High School Researcher ยท Environmental Advocate

Providing Clean & Safe Water
For People Who Need It Most

A passive solar desalination project targeting post-conflict and low-income regions

Jinseok Ahn ยท ์•ˆ์ง„์„

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About Me

Who I Am

Hi! I'm Jinseok Ahn (์•ˆ์ง„์„), a high school student with a deep passion for environmental protection and water conservation.

After realizing that water scarcity directly threatens the lives of millions โ€” especially in post-conflict and marginalized regions โ€” I decided to go beyond awareness and build a real solution myself.

My focus is on developing a passive solar desalination device that works without electricity or large infrastructure, making clean water accessible to anyone, anywhere.

๐ŸŒ SDG 6 Clean Water โ™ป๏ธ SDG 13 Climate Action ๐Ÿ”ฌ Environmental Research
๐Ÿ’ง
"To design a cost-effective, energy-free desalination system that empowers individuals and communities โ€” especially in post-conflict and low-income regions โ€” to access clean, safe drinking water."
2
Prototypes Built
2
SDGs Addressed
1+
Year of Research
My Story

Why Water?

My interest began in an environmental science class, where I first learned about the devastating scale of global water scarcity. But the more I researched, the more I realized this wasn't just an environmental issue โ€” it was a matter of survival for hundreds of millions of people.

Seeing news coverage of children in post-conflict regions drinking contaminated water pushed me to ask: "If the technology exists, why can't we solve this?"

"Clean water is not a privilege for certain nations or classes โ€” it is a fundamental human right."

In war-torn and conflict-affected regions, infrastructure collapses. People are left without energy, money, or clean water. I wanted to build something for those people โ€” something that works with nothing but sunlight.

GCC Countries Map

GCC Countries โ€” Primary target region for this research

๐Ÿ“ Most Water-Stressed Countries (WRI 2023)

๐Ÿ‡ฐ๐Ÿ‡ผ

Kuwait

99% of freshwater from desalination. World's #1 water-stressed country.

Extreme
๐Ÿ‡ถ๐Ÿ‡ฆ

Qatar

No rivers. Water demand nearly doubled between 2006โ€“2013.

Extreme
๐Ÿ‡ธ๐Ÿ‡ฆ

Saudi Arabia

Poor agricultural policy eliminated 2/3 of groundwater reserves.

Extreme
๐Ÿ‡ฎ๐Ÿ‡ถ

Iraq

Tigris & Euphrates rivers predicted to run dry by 2040.

Extreme
๐Ÿ‡ฎ๐Ÿ‡ณ

India

18% of world population, only 4% of global freshwater.

Extreme
๐Ÿ‡ต๐Ÿ‡ฐ

Pakistan

UN warns of imminent absolute water scarcity.

Extreme
๐Ÿ‡ง๐Ÿ‡ฉ

Bangladesh

Up to 6% GDP loss by 2050.

High
๐Ÿ‡ป๐Ÿ‡ณ

Vietnam

2024 Mekong saltwater intrusion affected 65M people.

High
The Problem

Why Is Clean Water So Hard to Access?

As technological advancements inevitably cause more environmental issues, the preservation of clean water has become exceptionally harder than ever before.

๐ŸŒก๏ธ

Global Warming

Rising sea levels cause salination of freshwater sources such as underground water and ponds.

โšก

Energy Dependency

Existing desalination systems consume enormous energy, increasing fossil fuel use and worsening global warming.

๐ŸŒ

Economic Inequality

Low-income countries and post-conflict regions face "economic water scarcity."

๐Ÿ—๏ธ

Infrastructure Collapse

Large-scale desalination plants require government-level investment, inaccessible for individuals.

Global Water Stress by Region
Post-conflict Regions
88%
88%
Middle East / Gulf
83%
83%
South Asia
74%
74%
Sub-Saharan Africa
75%
75%
Low Income Countries
70%
70%
My Project

Passive Solar Desalination System

The main objective of this project is to create a more cost and energy efficient desalination system using 100% passive solar energy, specifically focused on post-conflict regions such as the Gulf region.

SDG 6
SDG 6 & SDG 13
Clean Water ยท Climate Action

๐ŸŒŠ SDG 6 โ€” Clean Water & Sanitation

Directly addressing Target 6.1 โ€” achieving universal and equitable access to safe and affordable drinking water for all.

๐ŸŒฟ SDG 13 โ€” Climate Action

Supporting adaptive capacity in climate-vulnerable nations by providing a grid-independent solution that utilizes 100% passive solar energy.

โšก

No artificial energy input required: Reduces fossil fuel use. People without access to energy can have a reliable source of water.

๐Ÿ“ฆ

Small size โ€” no cost for implementation: Can be used by individuals. Adequate for people suffering from economic water scarcity.

๐Ÿ’ฐ

Cheap and accessible: Designed specifically for communities that cannot afford large-scale infrastructure.

Research Journey

Timeline

January 2025
๐Ÿ” Brainstorming & Research

Began research to identify the current problem, structural design, and materials to use for developing a prototype.

April 2025
๐Ÿงช First Prototype Development

Developed the first prototype using Diamite, SiOโ‚‚, Gluconobacter, Bacterial Cellulose, Biochar, Feโ‚ƒOโ‚„, and Agar.

First Prototype
September 2025
๐Ÿ“Š Performance Evaluation & Paper

Evaluated performance, limitations, and environmental and economic feasibility. Research paper published.

January 2026
๐Ÿš€ Second Prototype Development

Developed an improved second prototype overcoming the limitations identified in the first.

Second Prototype
Prototypes

Prototype Development

๐Ÿงฌ Materials Used

DiamiteSiOโ‚‚GluconobacterBacterial CelluloseBiocharFeโ‚ƒOโ‚„Agar

Hydrophilic, low density, high porosity materials. Biochar maximized heat absorption. Feโ‚ƒOโ‚„ removes heavy metals with high photothermal conversion efficiency.

Materials

๐Ÿ”ฌ Experimental Setup

Dome Setup Parts Layout

๐Ÿ”ฌ Lab Process

Lab 1
Bacterial cellulose culture preparation
Lab 2
Pipetting into petri dishes
Lab 3
Mixing biochar composite material
Lab 4
Measuring structure samples
Lab 5
Material preparation in lab
Lab 6
Thermal camera measurement

๐Ÿงช Prototype Structures

Structures
Completed gel structures โ€” SiOโ‚‚+BCC (left) vs SiOโ‚‚ (right)
Floating
Structure floating in water container

๐Ÿ“Š Experimental Results

Water dome experiment
Solar dome desalination experiment
FLIR
FLIR thermal imaging โ€” 37.0ยฐC peak temperature
Temp graph
Temperature change โ€” SiOโ‚‚+BCC reached 49.5ยฐC vs SiOโ‚‚ at 39.4ยฐC
Absorption graph
Water absorption โ€” SiOโ‚‚+BCC absorbed more water consistently
Evaporation graph
Water evaporation โ€” SiOโ‚‚+BCC (orange) evaporated faster than SiOโ‚‚ (blue)
Hypothesis diagram
Hypothesis โ†’ Result โ†’ Improvement diagram

โš ๏ธ Limitations Identified

The structure retained a significant amount of water, indicating the rate of evaporation was slower than absorption. The surface did not heat efficiently because faster absorption provided cooler water, further reducing the evaporation rate.

๐Ÿ”ง Updated Materials

Sodium AlginateCarbonized Rice HullLarger SizeFloating Structure

Major changes in materials and physical structure to overcome Prototype 1 limitations.

P2 Materials

๐Ÿ“ New Structure

Cup device

The second prototype floats on water, increasing contact surface area and absorption rate.

๐Ÿ”ฌ Lab Process

P2 lab 1
Preparing Prototype 2 materials
P2 assembly
Assembling Prototype 2
P2 cups
Side-by-side comparison of two cup devices

โœ… Improvements & Reasoning

Bigger Size

To increase the practicality and efficiency of water collection.

Agar โ†’ Sodium Alginate

Agar retained water, preventing efficient evaporation. Sodium alginate has lower water retention, improving evaporation rate.

Biochar โ†’ Carbonized Rice Hull

To increase the rate of water absorption.

Partial submersion โ†’ Floating structure

Increases surface area in contact with water, subsequently increasing absorption rate.

Connect

Let's Talk

Interested in environmental research, water scarcity, or sustainable technology? Want to learn more about my project? Feel free to reach out!

๐Ÿ“ฌ Reach out via email or social media.

Contact details coming soon.