Acknowledgement to Reviewers
The high scientific standards maintained by Blue-Green Systems, in their papers owe much to the continuing dedication of the journals’ reviewers, who give freely of their time and expertise. IWA Publishing is pleased to pay tribute to this contribution by recognizing those who have participated in the review process. Thus, the Editor in Chiefs, Editors and Associate Editors acknowledge with particular gratitude the following reviewers who have reviewed papers during the period January 2019–December 2019.
| Nurul Syazana Abdul Halim | Orlando Garcia Rodriguez | Viet-Anh Nguyen |
| Amila Abeynayaka | Kirill V Gorin | Wikke Novalia |
| Miimu Airaksinen | Hong Guo | Anthony Parolari |
| Maria Alvarez Alvarez | Scott Hawken | Elodie Passeport |
| Beatrice Andreucci | Jiajie He | Veljko Prodanovic |
| Andreas Angelakis | Brigitte Helmreich | Anacleto Rizzo |
| Caroline Araujo | Behzad Jamali | Joerg Schaffner |
| L.F. Arenas | Jan Kazak | Alexandros Stefanakis |
| Richard Ashley | Yong-ha Kim | Blaž Stres |
| Borislava Blagojevic | Martijn Kuller | Thomas Track |
| Gianluigi Buttiglieri | João Leitão | Hai Nguyen Tran |
| Artemi Cerda | Tao Li | Huanting Wang |
| Walter Den | Maria Lousada Ferreira | Brandon Winfrey |
| Sophie Duchesne | Fabio Masi | Ken Wong |
| Mawuli Dzakpasu | Carmelo Maucieri | Fern Yong |
| Ana Galvao | Sanjay Mohanty | Jin Zhang |
| Pin Gao | Thomas Nehls |