Table 2 The crystal growth rates obtained from different feed temperatures and pH values, derived from the linear plots as defined by the R2 values and linear equations

From: Innovative dual-purpose remediation of acid mine drainage and resource recovery through membrane distillation crystallization

Feed temperature (°C)

Growth rates of crystals salts and linear correlation

pH 3.58 (µm·h−1)

R2

pH 6.47 (µm·h−1)

R2

50

4.92

0.99

2.85

0.97

60

5.66

0.99

2.98

0.94

70

7.07

0.98

3.49

0.94