Medium

Current intensity or voltage gradient used

Highlights/main outcome

Reference

Liquid and

Soil slurry (silt)

20 mA/cm²

High cell density survive despite to the applied current

[50]

Soil (kaolinite)

0.31, 0.63, 1.88, 3.13 mA/cm²

Optimum current 0.63 mA/cm²

[32]

Liquid

0.04, 4, 8, 12, 14 mA/cm²

Optimum electric field density 100 kJ/L

[74]

Liquid

10.2 mA/cm²

No effect on cell activity

[76]

Glass beads

1.8 mA/cm²

Low level DC has no effect of cell viability

[77]

Soil (clay and silt)

0.314 mA/cm²

pH changes near the anode is major factor affecting

the microbial communities

[78]

Soil

1.0 mA/cm²

If pH is controlled no negative effect from applied electric field on indigenes bacteria

[79]

hide-soak liquors

2 A (data are not enough to determine the current intensity)

Deactivated bacteria

[80]

Activated sludge

0.5 - 1.5 mA/cm²

pH or direct contact caused bacterial inhibition

[81]

Fine grained soil

2 V/cm

The population of bacteria increased near the cathode

[73]

Sandy loam

0.46 v/cm

Rate of transport is 0.11 cm/h

Microorganisms are active after the transport process

[42] [82]

Tap water/Sludge

0.28 - 1.4 v/cm

Optimum voltage intensity is between 0.28 and 1.4 v/cm

[83]