Adsorbent

Mass, g

Biogas flowrate, m³/min

H₂S removal, g S/100g of adsorbent

pH

Ref.

Moist soils

1 - 5

8.00 × 10^?5

0.50

5.70 - 7.70

[54]

Montmorillonite clay

12.50

51.00 × 10^?2

1.27

9.00

[33]

Municipal waste bottom ash

13 × 10³

55.94 × 10^?3

0.30

9.80

[55]

Red mud soil

5

5 × 10^?5

2.10

>13.00

[19]

Coal ashes

10

14.20 × 10^?5

0.50

11.90 ± 0.01

[15]

OLA-TP-850

1

2 × 10^?3

1.00

12.31

Current study