Skip to main content
AMB Express

Table 1 Characterization of original acid mine drainage (AMD) and influent water for the bioreactor

From: Hydraulic retention time and pH affect the performance and microbial communities of passive bioreactors for treatment of acid mine drainage

 

Original AMD

Influent watera

Neutral condition

Acid condition

pH

3.53

6.25

3.02

ORP (mV)

361

221

531

Sulfate (mg l−1)

320.2

315.9

312.5

Zn (mg l−1)

16.29

14.93

16.59

Fe (mg l−1)

36.49

1.36

5.90

Cu (mg l−1)

6.48

4.21

5.13

Cd (mg l−1)

0.070

0.061

0.054

Al (mg l−1)

8.55

2.63

7.68

Ca (mg l−1)

13.15

71.88

13.77

  1. aOriginal AMD was initially passed through an iron-oxidation reactor, and resultantly, the iron concentration became approximately 5 mg l−1. In the neutral condition, iron-treated AMD neutralized with limestone (pH 6.3) was used, while iron-treated AMD (pH 3.0) was used in the acid condition
Back to article page