June 1–5, Yalta, Crimea — Winners of the All-Ukrainian Junior Water Prize competition showcased their works at the 9th International Congress and Technical Exhibition ETEWS-2013 (Ecology Technology Economics Water-supply Sewerage).

By answering questionnaires, congress participants recognized as the best work "The development of a device for biologically safe utilization of hydrogen sulfide in the Black Sea" by Kyrylo Dobrosol and Dmytro Bukata from Alchevsk, Luhansk Oblast, who received a first-grade diploma.

Anyuta Mulyarchuk from the village of Dzvynyachka, Ternopil Oblast, received a second-grade diploma for the "Design of a microhydro plant with a hydraulic piezoceramic generator."

Third-grade diplomas went to the works "A stand-alone device for protection of water bodies against mass fish suffocation" by Zynoviy Shvayk from Lviv, "A wave power plant" by Mykhaylo Lytovchenko from Dnipropetrovsk, and "An experimental study of the effect of electrode form and material on electrolysis in a power plant energy system" by Viktor Kurylenko from Kryvy Rih, Dnipropetrovsk Oblast.

The State Enterprise "Research and Development Institute of Urban Economy" awarded a special prize for original approach to Viktoria Myhal from Halych, Ivano-Frankivsk Oblast, for her work "Hydraulic ram – a source of alternative energy." An audience choice award was given to Ksenia Turbina from the Crimean village of Mizhvodne for her work "The water management culture in the Crimean Khanate period."

The contest winners' works were also highly commended by the first deputy minister of regional development, construction, housing and utilities of Ukraine, Hryhoriy Semchuk.

The All-Ukrainian Junior Water Prize competition is a national stage of the international Stockholm Junior Water Prize competition, in which over 30 countries participate and which takes place within the framework of the World Water Week in Stockholm. This year's Ukrainian competition was the ninth. Its final was held at the National Technical University of Ukraine "Kyiv Polytechnic Institute" from April 9–12.

MAMA-86 is a partner of the All-Ukrainian Junior Water Prize Organizing Committee.

ETEWS-2013 was carried out by the Ministry of Regional Development, Construction, Housing & Utilities of Ukraine. Issues the congress focused on included improving the efficiency and stability of water supply and sanitation, energy conservation, development of modern water treatment technologies, materials, reagents and equipment, process automation, and protection of natural water resources.