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This year the competition was held in 32 countries and 44 participants made it to the international finals. The winner was announced on 24 August during a festive award ceremony that was part of World Water Week (23-27 August).

ABOUT WATERTANK

Welcome to WaterTank, the community for Stockholm Junior Water Prize finalists! Here participants and alumni can share ideas, seek advice, and stay in touch. Join us and be inspired by the many creative solutions to the world’s greatest water challenges!

FEATURED NEWS

Young American researcher wins Stockholm Junior Water Prize 2021
News | 24 Aug, 2021 | Ania Andersch

Young American researcher wins Stockholm Junior Water Prize 2021

Eshani Jha from the USA is the winner of the prestigious 2021 Stockholm Junior Water Prize. She was awarded the Prize for her research on simple and affordable ways to purify water. 
Join us for the Stockholm Junior Water Prize Ceremony on 24 August
News | 19 Aug, 2021 | Ania Andersch

Join us for the Stockholm Junior Water Prize Ceremony on 24 August

With less than a week to go before the award ceremony, excitement is growing around Stockholm Junior Water Prize 2021. On 24 August 2pm CEST we will find out who the winners are.
Thank you for voting in the People’s Choice Award!
News | 13 Aug, 2021 | Ania Andersch

Thank you for voting in the People’s Choice Award!

A record number of 55,000 people had voted for their favourite Stockholm Junior Water Prize projects. Thank you for participating. The winners will be announced on 24 August during World Water Week. 
See all »

COMPETING PROJECTS 2020

First Evidence of Microplastics in the Waters of the Upper Engadine in Switzerland
2020 | Switzerland | Too dirty

First Evidence of Microplastics in the Waters of the Upper Engadine in Switzerland

The objective of this study was to find out whether microplastic particles can be found at 8 locations in the Upper Engadine with different population densities, types of land use, and distances…
A research on the basic formula development for marine environmental friendly sunscreen based on edible ingredients
2020 | China | Too dirty

A research on the basic formula development for marine environmental friendly sunscreen based on edible ingredients

The synthetic chemical components test of sunscreen, such as benzophenone, are harmful to marine environments. It has been proven that plant oils (olive, jojoba, carrot seed, aloe, avocado, grapeseed and coconut) have…
P.E.N.G.U.I.N.S.
2020 | USA | Too dirty

P.E.N.G.U.I.N.S.

Oil spills are environmental catastrophes – yet much of the danger comes from the less-famous emulsion that forms between spilled oil and seawater. I developed prototypes to educe overall emulsion stability by…
The Effectiveness of Using Replacement Reactions of Carbonate Minerals in Removing Groundwater Pollutants
2020 | Israel |

The Effectiveness of Using Replacement Reactions of Carbonate Minerals in Removing Groundwater Pollutants

The aim of the research is removal of metals from contaminated groundwater via chemical reaction between the aquifer rocks and oxalic acid injected in the water. The research consisted of laboratory experiments…
Use of FCH Filters (Human Hair Filters) in fishing boats artisan for the capture of hydrocarbons present in bilge maneuvers.
2020 | Chile | Too dirty

Use of FCH Filters (Human Hair Filters) in fishing boats artisan for the capture of hydrocarbons present in bilge maneuvers.

Oil spills can cause serious damage to the resources of the fishing sector and the aquaculture through physical contamination, toxic effects on fish and shellfish populations and by interruption of business activities….
‘Hydro-Filtricity’
2020 | United Kingdom | Too dirty

‘Hydro-Filtricity’

The amalgamation of both hydro-electricity and microplastic filtration is an area that is currently unexplored. Our project provides a new alternative ultimately making sustainable energy even more environmentally friendly. Both concepts combined,…
Magnetic Fluid Biochar, Eco-Friendly Novel from Sawdust for Wastewater Treatment
2020 | Thailand | Too dirty

Magnetic Fluid Biochar, Eco-Friendly Novel from Sawdust for Wastewater Treatment

This innovation was developed to improve biochemical properties of biochar as adsorbent called Magnetic Fluid Biochar (MFB) for removal of heavy metal, microplastics and dyes from wastewater. MFB can absorb more than…
Syzygium cumini SeedExtract-Mediated Green Synthesis of Iron Oxide Particles for the Removal of Cadmium Ion in Wastewater
2020 | Sri Lanka | Too dirty

Syzygium cumini SeedExtract-Mediated Green Synthesis of Iron Oxide Particles for the Removal of Cadmium Ion in Wastewater

Water is an inevitable aspect of not only humans but all living beings. On the other hand, contamination of water results in many acute and chronic illnesses in humans, and environmental pollution….
Treatment of Metal Containing Wastewater using Eco-friendly Alginate: Selective Recovery of Metal ions
2020 | Republic of Korea | Too dirty

Treatment of Metal Containing Wastewater using Eco-friendly Alginate: Selective Recovery of Metal ions

Heavy metal pollution from wastewater poses a significant health risk. Conventional methods of heavy metal removal from wastewater use a coagulant to attract metal ions into sludge. The treatment is long, costly…
“Use of ancestral Mazahua natural soaps for water sustainability”
2020 | Mexico | Too little

“Use of ancestral Mazahua natural soaps for water sustainability”

Mazahuas are an indigenous group that lives in a small area in Central Mexico and have accumulated centennial knowledge on the use of plant substrates as cleansing agents. In this project, students…
Smart Water Harvesting System For Agriculture
2020 | Malaysia | Too little

Smart Water Harvesting System For Agriculture

According to New Straits Times, about 100 farmers in Pinang Tunggal, Paya Keladi and Pantai Kamloon in Penang, are at risk of suffering major losses when there is inadequate water supply to…
2020 | Laos | Too dirty

"Treating Waste Water for Re-usage"

Last year, 2019, Laos was hit by one of the worst droughts in a decade. We thought of researching for a solution to save water and an idea we came up with…
Training for 20 low-income families from peripheral neighborhoods of the city of Cobija for the design and construction of greywater and rainwater purification modules, using Brazil nut and coconut shells
2020 | Bolivia | Too dirty

Training for 20 low-income families from peripheral neighborhoods of the city of Cobija for the design and construction of greywater and rainwater purification modules, using Brazil nut and coconut shells

This project seeks to improve the health of 20 low-income families from peripheral neighborhoods of the city of Cobija who will have access to an alternative for self-management of greywater and rainwater….
Microplastics pollution of water in Belarus: from the problem to the solution
2020 | Belarus | Too dirty

Microplastics pollution of water in Belarus: from the problem to the solution

Nowadays the microplastic pollution is becoming a macroproblem in the world scale but the responsibility is devoted to every country. What is about Belarus? In the results of the project it has…
Pollution-induced changes in enzyme activity in aquatic ecosystems
2020 | Russian Federation | Too dirty

Pollution-induced changes in enzyme activity in aquatic ecosystems

The project goal was improvement of the rivers’ environmental monitoring using changes in enzymes’ activity in the surface waters, bottom sediments and hydrophytes. Activity of the following hydrolase enzymes has been researched:…
Using naturally derived poly glutamic acid in association with Moringa oleifera seeds as a coagulant for treating water
2020 | Bangladesh | Too dirty

Using naturally derived poly glutamic acid in association with Moringa oleifera seeds as a coagulant for treating water

Bangladesh is currently undergoing some massive economic changes, and the river bodies are being affected by pollution. Unethical practices are not accounted and the rise in economic growth translates to more industries,…
Bioflocculant pectin activity extracted from the orange peel (Citrus sinensis (L.) Osbeck) for wastewater treatment
2020 | Brazil | Too dirty

Bioflocculant pectin activity extracted from the orange peel (Citrus sinensis (L.) Osbeck) for wastewater treatment

The main flocculant agent used in the water and wastewater treatment process is the polyacrylamide, of which monomers are highly toxic. The purpose of this project is to solve this problem by…
Remote Sensing Applied to Precision Agriculture
2020 | Spain | Too much

Remote Sensing Applied to Precision Agriculture

We are Manuel Martínez, Joan Viñallonga and Marc Pérez, students from the technological field. Our research project is called Remote sensing applied to precision agriculture. Our goal is to reduce the high…
Biomimicry: Nature's blueprint
2020 | Netherlands | Too dirty

Biomimicry: Nature's blueprint

Biomimicry is an art that uses processes that are found in nature to solve human problems. Biomimicry can be used to clean water. During this research, the problem-driven approach is used. This…
AI FRESH STATION” – Platform for Growing ECO-GREEN
2020 | Ukraine | Too little

AI FRESH STATION” – Platform for Growing ECO-GREEN

AI Fresh Station (AIFS) – is an artificial intelligence home kitchen appliance that grows organic food all year round. It can save water, help keep soil clean and eliminate waste and CO2…
Phytoplankton and Thiamine
2020 | Sweden | Too little

Phytoplankton and Thiamine

Have you ever heard of thiamine deficiency? A high mortality among animals due to thiamine deficiency has recently been observed and the cause has been proposed to be phytoplankton. These are the…
A Novel Electrochemical Enhancement of Activated Carbon Fibre for the Purification of Contaminated Pharmaceutical Effluents
2020 | Singapore | Too dirty

A Novel Electrochemical Enhancement of Activated Carbon Fibre for the Purification of Contaminated Pharmaceutical Effluents

Adsorption by activated carbon is conventionally used for wastewater treatment but is inefficient for pharmaceutical wastewater purification. This study investigates a novel, low-cost electrochemical enhancement of activated carbon fibre (ACF). With 1.0V…
CONTROLLED BREEDING AND SELECTION OF RESISTANT SPECIES Aegagropila linnaei and Taxiphyllum Barbieri FOR PREVENTING PETROLEUM BASED POLLUTION IN FRESH WATER RESOURCES
2020 | Turkey | Too dirty

CONTROLLED BREEDING AND SELECTION OF RESISTANT SPECIES Aegagropila linnaei and Taxiphyllum Barbieri FOR PREVENTING PETROLEUM BASED POLLUTION IN FRESH WATER RESOURCES

Our project consists of four processes: 1. Cultivating and the reproduction of these species in stable conditions, 2. Preparation of an experiment which consisted of adding 50 and 100 μl of diesel…
Detecting the Toxin Production of the Microcystis species in Hungarian Lakes
2020 | Hungary | Too dirty

Detecting the Toxin Production of the Microcystis species in Hungarian Lakes

Algal bloom causes several damages for lakes all around the word. The goal of this project was to develop an efficient way to follow the toxin production during algal blooming at an…
A Hybrid Artificial Wetland System, for the Treatment of Domestic Wastewater in Rural Areas
2020 | Ecuador | Too dirty

A Hybrid Artificial Wetland System, for the Treatment of Domestic Wastewater in Rural Areas

Wastewater generation is a current environmental and public-health problem. In this project, the influence of the species Canna indica and Racinaea fraseri on the removal of contaminants present in domestic wastewater was…
Natural Water Purifier with GSM Monitoring System
2020 | Nigeria | Too much

Natural Water Purifier with GSM Monitoring System

The use of chemicals in water treatment, which is a popular practice all over the world, contributes to climate change. For example, chlorine reacts to form tetra-halo-methane which are green house gases…
Controlling soil runoff and increasing food production by the functional water collection system using traditional Japanese soil solidification technology: “Ta-Ta-Ki”
2020 | Japan | Too little

Controlling soil runoff and increasing food production by the functional water collection system using traditional Japanese soil solidification technology: “Ta-Ta-Ki”

In this research, by applying “Ta-Ta-Ki” soil, a traditional Japanese soil solidification technology, we developed a novel multifunctional water collection system to control soil runoff and increase food production with low environmental…
CRACK for the FUTURE: The use of eggshell waste as a bio-adsorbant of phosphates for water and soil quality
2020 | Australia | Too dirty

CRACK for the FUTURE: The use of eggshell waste as a bio-adsorbant of phosphates for water and soil quality

This study looked at potential bio-waste adsorbents to decrease the phosphate run-off into natural waterways from agricultural fertilisers and animal manures. Identifying eggshell waste as an effective adsorbent for phosphate, a mathematical…

GET ENGAGED

Would you like to be part of the WaterTank community? If you are or have been a Stockholm Junior Water Prize finalist, you should join our alumni network to stay connected with water enthusiasts across the world. We also work together with partner organizations who share our passion for solving major water challenges.

Alumni All 2019 winners at the SJWP award evening

Alumni

Stay connected with fellow participants and meet new friends! Through WaterTank you learn about opportunities and news from the water community and can get input from senior water experts and others who share your interests.
Partner

Partner

We’re always looking for partners to help us raise the voices and ambitions of these young talents. If you too want to contribute to a water-wise world, please get in touch. We’re looking for partners of every size and kind.
Vote

Vote

Your favourite 2021 Stockholm Junior Water Prize project in the People’s Choice Award will be announced on 24 August during World Water Week. Last day to vote is 12 August.

NATIONAL ORGANIZERS

Around 35 countries are part of Stockholm Junior Water Prize. In all countries, SIWI collaborates with a national organizer that arranges the national competitions and nominate candidates to the international finals. Click on the map below for details on the organizers. To become a national organizer, contact Ms Ania Andersch.