| Similarity | Rank | |
|---|---|---|
| bioga | 0.747 | 33090 |
| organic_waste | 0.741 | 69060 |
| digester | 0.717 | 79636 |
| biomass | 0.691 | 8352 |
| wastewater_treatment | 0.656 | 51114 |
| compost | 0.654 | 7005 |
| feedstock | 0.652 | 44952 |
| bioenergy | 0.643 | 43864 |
| Biomass | 0.640 | 78430 |
| food_waste | 0.637 | 25475 |
| biochar | 0.634 | 50196 |
| waste_stream | 0.632 | 52188 |
| solid_waste | 0.621 | 32002 |
| incineration | 0.621 | 50302 |
| district_heating | 0.615 | 89833 |
| wastewater | 0.615 | 16254 |
| solar_thermal | 0.604 | 84209 |
| Bioenergy | 0.604 | 86779 |
| manure | 0.603 | 18466 |
| waste_water | 0.599 | 36994 |
| effluent | 0.598 | 39640 |
| fermentation | 0.596 | 27054 |
| biofuel | 0.593 | 11346 |
| energy_generation | 0.591 | 60953 |
| lignin | 0.586 | 75500 |