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Nederland bij de jubileum-editie Stockholm Junior Water Prize

(English below)

De Stockholm Junior Water Prize viert dit jaar het 25-jarig bestaan. Net als vorig jaar reisden de finalisten niet af naar Stockholm, maar was er een online editie. In totaal deden er 44 finalisten uit 32 landen mee. Stijn Wiersma (18), winnaar van de Dutch Junior Water Prize, mocht Nederland representeren. Op dinsdag 24 augustus maakte Kroonprinses Victoria van Zweden de winnaars bekend tijdens de online Award Ceremony.

Drie prijzen

Dit jaar waren er, net als vorig jaar, drie prijzen te verdienen. De Public Choice Award, een nieuwe categorie waarbij het publiek via social media kon stemmen op uitlegfilmpjes van de finalisten, werd gewonnen door Brazilië. Het Diploma of Excellence, een prijs voor het project met veel potentie, ging naar Thailand. De hoofdprijs van 15.000 dollar is gewonnen door U.S.A.  Dit winnende project is een onderzoek naar het gebruik van ‘Biochar’, oftewel verbrande biomassa. Door Biochar op een bepaalde manier aan te passen, kan je hiermee water zuiveren van organische en niet-organische vervuiling.

Nederlandse inzending

Ondanks dat Nederland niet in de prijzen is gevallen, blijkt het onderzochte thema van Stijn Wiersma wel belangrijk. ‘Bij de uitreiking van het Diploma of Excellence dacht ik even gewonnen te hebben. De omschrijving van het project van Thailand leek erg op het mijne!’

Stijn heeft onderzoek gedaan naar de relatie tussen deeltjesgrootte van organisch kunstmest en oplosbaarheid in water. Hij heeft hierbij hooi gebruikt als organisch materiaal. Ook heeft hij gekeken naar het effect van het gebruik van hooi op de mogelijkheid van de grond om water vast te houden. Een mengsel van hooi en grond kan beter water vasthouden dan zonder hooi. Met het gebruik van hooi hoeft zo bijvoorbeeld minder water gebruikt te worden door boeren.

Dutch Junior Water Prize

In Nederland zal er volgend jaar weer een editie van de Dutch Junior Water Prize plaatsvinden. Dit is een werkstukkenwedstrijd voor het beste idee op gebied van waterinnovatie. Tevens is dit de voorronde voor de internationale finale in Stockholm. Voor meer informatie, zie www.dutchjuniorwaterprize.nl. De Dutch Junior Water Prize wordt georganiseerd door het onderzoeksinstituut Wetsus in Leeuwarden.

English

U.S.A. wins 25th edition of Stockholm Junior Water Prize

On August 24th Crown Princess Victoria of Sweden announced the winner of the Stockholm Junior Water Prize. This year’s winner is Eshani Jha from U.S.A., with her research on the use of adjusted ‘Biochar’ (burned biomass) for the removal of contaminants from water. The winner of the Diploma of Excellence is Thailand, and the winner of the Public Choice Award is Brazil. Stijn Wiersma, winner of the Dutch Junior Water Prize, represented the Netherlands with his research on the use of hay as a fertilizer to improve the water retainment quality of soil.

Just like last year this 25 th edition was held online. In total 44 finalists from 32 countries participated. Hopefully next year the finalists can travel to Stockholm again to meet each other in an inspiring week of events. For now we are proud of the participation of Stijn!

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