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Table 6 Heat values for fluid–fluid (2D * \(\hbox {TB}_{\mathrm{chelating}}\) or \(\hbox {DI}_{\mathrm{chelating}}\) into TB)

From: Chelating agents for diluted geothermal brine reinjection

Inj

Oxalic into TB (mJ)

EDTA into TB (mJ)

EDDS into TB (mJ)

Humic into TB (mJ)

2D * \(\hbox {TB}_{\mathrm{oxalic}}\)

\(\hbox {DI}_{\mathrm{oxalic}}\)

2D * \(\hbox {TB}_{\mathrm{EDTA}}\)

\(\hbox {DI}_{\mathrm{EDTA}}\)

2D * \(\hbox {TB}_{\mathrm{EDDS}}\)

\(\hbox {DI}_{\mathrm{EDDS}}\)

2D * \(\hbox {TB}_{\mathrm{Humic}}\)

\(\hbox {DI}_{\mathrm{Humic}}\)

1

2.15

10.40

3.95

15.75

0.44

19.18

0.89

13.13

2

1.01

11.22

5.43

13.79

− 0.34

19.86

0.01

14.64

3

0.31

9.93

4.18

11.28

− 1.26

22.54

− 0.96

13.92

4

− 0.18

8.64

3.42

9.60

− 1.83

22.33

− 1.55

15.80

5

− 0.52

7.70

2.62

7.39

− 1.96

23.25

− 1.71

15.46

6

− 0.37

7.27

2.06

7.68

− 1.96

21.46

− 1.43

14.81

7

− 0.64

6.58

1.97

5.66

− 1.83

18.51

− 0.83

14.14

8

− 0.82

5.85

1.78

5.57

− 1.90

17.05

− 0.13

13.67

9

− 0.45

5.44

1.65

5.12

− 1.82

16.38

− 0.19

13.12

10

− 0.07

4.45

1.96

5.02

− 1.22

14.66

− 0.69

11.38