The specialist group Wasserchemische Gesellschaft of the German Chemical Society (GDCh) awards honorary membership as a special honour to individuals who have made exceptional scientific contributions in their specialist field. The "Honorary Chair" award is presented to long-serving chairmen of the Wasserchemische Gesellschaft
.| Year | Appreciation | Awardee:in | Affiliation at time of award |
| 2022 | Honourary Chair (2013-2021) | Prof. Dr Torsten C. Schmidt | Essen |
| 2022 | Honourary Membership | Prof. Dr Thilo Hofmann | Vienna/AT |
| 2015 | Honourary Membership | Dipl.Ing. Ninette Zullei-Seibert | Schwerte |
| 2013 | Honourary Chairmanship (2004-2012) | Prof. Dr.-Ing. Martin Jekel | Berlin |
| 2013 | Honourary Membership | Prof. Dr. Eckhard Worch | Dresden |
| 2010 | Honourary Membership | Prof. Dr Ralf Klopp | Essen |
| 2004 | Honourary Chairmanship (1992-2003) | Prof. Dr Fritz Frimmel | Karlsruhe |
| 2004 | Honourary Membership | Prof. Dr Ulrich Förstner | Hamburg |
| 2001 | Honourary Membership | Prof. Dr. Siegfried Eberle | Karlsruhe |
| 2000 | Honourary Membership | Prof. Dr Johannes Reichert | Warstein |
| 1999 | Honourary Membership | Prof. Dr Hans-Joachim Walther | Dresden |
| 1996 | Honourary Membership | Prof. Dr Wilhelm Fresenius | Taunusstein |
| 1995 | Honourary Membership | Prof. Dr. Heinz Bernhardt | Siegburg |
| 1994 | Honourary Membership | Prof. Dr Rudolf Wagner | Steinenbronn |
| 1993 | Honourary Membership | Prof. Dr Joachim Kaeding | Dresden |
| 1992 | Honourary chairmanship (1971-1992) | Prof. Dr. Karl-Ernst Quentin | Kulmbach |
| 1991 | Honourary Membership | Prof. Dr Klaus Haberer | Wiesbaden |
| 1990 | Honourary Membership | Prof. Dr Paul Koppe | Essen |
| 1989 | Honourary Membership | Prof. Dr Heinrich Sontheimer | Karlsruhe |
| 1982 (1986?) | Honourary Membership | Prof. Dr. Walter Niemitz | Berlin |
| 1981 | Honourary Membership | Prof. Dr Waldemar Ohle | Plön |
| 1979 (1986?) | Honourary membership | Prof. Dr Bernard Braukmann | Bochum |
| 1970 | Honourary chairmanship (1949-1970) | Prof. Dr Wilhelm Husmann | Essen |
| 1933 | Honourary Membership | Prof. Dr Josef Tillmans | Frankfurt a.M. |
| 1930 | Honourary chairmanship (1926-1930) | Prof. Dr Hugo Haupt | Bautzen |