| Inoculum | MFC | Medium | Removal yield | Anode material | Regulation | Potential | Ref. |
| Natural microbial consortium | 100 mL Single cell | contaminated marine sediment | 24% removal/66 d from 16 g/kg total petroleum hydrocarbons | carbon cloth | 1000 Ω resistor | n.d. | [152] |
| Natural microbial consortium | Snorkel in 120 mL serum bottles | artificially contaminated marine sediment (crude oil) | Up to 22% removal/200d | Graphite rods | n.a. | n.a. | [156] |
| Pure culture of Geobacter metallireducens and G. sulfurreducens | 250 mL dual-chamber | River sediment | reduce nitrate to nitrite | graphite | Potentiostat poised | −500 mV | [179] . |
| Pure culture of G. metallireducens | 250 mL dual-chamber | hydrocarbon-contaminated harbour sediment | [14C]-toluene (≈90% removal/7 d) and [14C]-benzene (≈35% removal/9 d) | solid graphite stick | Potentiostat poised | + 300 mV (vs Ag/AgCL) | [176] . |
| Pure culture of G. lovleyi | 250 mL dual-chamber | Synthetic growth medium | Tetrachloroethene removal rate: 25 µmol/d | graphite lectrode | Potentiostat poised | +500 mV or −300 mV (NHE) | [180] |
| Mixed culture dominated by sulphate reducers | 250 mL dual-chamber | artificial sea water + hydrocarbon-contaminated marine sediment | Toluene removal rate: ≈1 mg/(L.d) | Graphite plate | Potentiostat poised | +300mV (Ag/AgCl) | [178] |
| Mixed culture rich in γ-Proteobacteria, in mineral medium | 320 mL single cell | Anode biofilms in artificial medium | 93.5 removal from 8000 mg/L within 30 d | Carbon fibre brush | external resistance of 1000 Ω | n.a. | [172] |
| Natural microbial consortium | Snorkel, PVC 10 cm column, granular coal filled, stainless steel mesh stopper (400 × 400 mm) in sediment tank | Swamp sediment | 8% - 18% organic matter removal/120 d | stainless steel mesh | No poised | 200 mV | [105] |
| Natural microbial consortium | 2.5 L, 1.2 m cylinder in PVC, Ø 5 cm | 100 cm organic-rich sediment; and overlying water from pond |
| stainless steel bottle brush | 1000 Ω resistor |
| [152] |
| Natural microbial consortium | 3 L, Tubular MFC PVC tube (20 cm, Ø 3.5 cm) | Waterlogged diesel and engine oil contaminated soil | 63.5% - 78.7% removal/64 d (37.6% - 43.4% in open control) | carbon cloth or biochar | 100 Ω resistor |
| [151] |
| Natural microbial consortium | 4 L Plexiglas column (35 cm, Ø 12 cm) | 0 - 10 cm depth lake sediment | 92% benzo[a]pyrene removal/970d (54% in controls) | graphite felt | 100 Ω resistor | 132 ± 24 mV (NHE) | [77] |
| Concentrated anaerobic sludge from WWTP | 35 L, 50 cm cylinder in polyacrylate, Ø 30 cm | Artificial constructed wetland soil, Ipomoea aquatica planted | 61% brilliant red X-3B dye decolorisation/3d hydraulic retention time | Granular activated carbone | 1000 Ω resistor |
| [177] |
| Natural microbial consortium | Water tank: 390 L, L:120 cm, l: 50 cm, h: 65 cm | River sediment | 74% PAH removal/72 d | Carbon mesh on porous honeycomb- structure | 10 Ω resistor | 150 mV (Ag/AgCl) | [160] |