A lot of time in his childhood before secondary school he spent at homeland of his parents in the Rivne region.

[4][5] In January 2015, Vitalii Demianiuk initiated the creation of a think-tank, whose main goal was making quality proposals for the development of the Chernobyl Exclusion Zone.

[6] Since February 2017 Vitalii Demianiuk has headed the Public Council under the State agency of Ukraine on Exclusion Zone Management.

In 2007, he became one of the patrons who supported the first edition of the book by Volodymyr Viatrovych, Ruslan Zabiliy, Igor Derevianskiy and Petro Sodol "Ukrainian Insurgent Army.

In 2008, he became one of the patrons of printing of the facsimile edition of Peresopnytsia Gospel, which was issued by the publishing house "ADEF-Ukraine".