Fig. 12
From: Dissolved organic compounds in geothermal fluids used for energy production: a review
a DOC, and b sum of organic acid anions vs. temperature, color-coded by chloride content (\(\hbox {g}\,\hbox {L}^{-1}\)). Temperature zones are marked according to Kharaka et al. (2000). c DOC vs. chloride content for the samples within the temperature range of 30–\(80\,{}^{\circ }\hbox {C}\). For the Klaipeda geothermal site (B1, Baltic Sea Basin) no chloride concentrations were given for the respective DOC concentrations. Thus, the average chloride concentration from well data reported in Brehme et al. (2019) was used instead