Democratia Aqua | Olga Jantsen | Activity https://democratia-aqua.org/mitglieder/olgajantsen/activity/ Activity feed for Olga Jantsen. Wed, 22 Apr 2026 08:07:29 +0000 https://buddypress.org/?v= en-US 30 hourly 2 832cb5cd1cf9e7bed54cdaaa17d7f268 Olga Jantsen changed their profile picture https://democratia-aqua.org/aktivitaet/p/346/ Tue, 18 May 2021 19:25:00 +0000 0 3f5662d0c952267e8bd4d136bfdd884e Olga Jantsen created the doc Here is the invitation in the group Challenge 3 – Design features and methods of efficient operation during seasonal operation of WWTP. https://democratia-aqua.org/aktivitaet/p/340/ Tue, 18 May 2021 17:45:33 +0000 af2596628d62e6e4a994f2c6dd2619bb Olga Jantsen joined the group Challenge 3 – Design features and methods of efficient operation during seasonal operation of WWTP. https://democratia-aqua.org/aktivitaet/p/322/ Tue, 18 May 2021 11:15:03 +0000 0 9ebe057609574544d46cf5a2869ab0d8 Olga Jantsen became a registered member https://democratia-aqua.org/aktivitaet/p/298/ Mon, 17 May 2021 18:57:26 +0000 0