| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| biochar production by sewage sludge pyrolysis | 1.47 | 0.5 | 1418 | 79 | 45 |
| biochar | 0.63 | 0.9 | 4660 | 48 | 7 |
| production | 0.66 | 0.4 | 8751 | 80 | 10 |
| by | 1.87 | 1 | 2857 | 96 | 2 |
| sewage | 0.59 | 0.6 | 1862 | 80 | 6 |
| sludge | 0.13 | 0.4 | 6948 | 49 | 6 |
| pyrolysis | 1.38 | 0.6 | 8329 | 30 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| biochar production by sewage sludge pyrolysis | 1.17 | 0.9 | 4619 | 8 |
| biochar from sewage sludge | 1.91 | 0.1 | 6667 | 26 |
| pyrolysis for sewage sludge | 0.11 | 0.7 | 641 | 28 |
| sludge-based biochar | 0.7 | 0.3 | 3047 | 69 |
| biochar from biomass slow pyrolysis | 0.23 | 0.4 | 3755 | 31 |
| sewage sludge biochar phosphate sorption | 0.83 | 0.5 | 5853 | 56 |
| biogas production from sewage sludge | 0.46 | 0.4 | 2079 | 30 |
| biochar production process pdf | 0.87 | 0.8 | 7663 | 62 |
| biochar production from agricultural waste | 0.82 | 0.5 | 1840 | 26 |
| process of biochar production | 0.21 | 0.3 | 7016 | 64 |
| pyrolytic characteristics of sewage sludge | 0.46 | 0.9 | 3087 | 7 |
| biochar production process diagram | 0.06 | 0.8 | 8628 | 54 |
| biochar in wastewater treatment | 1.8 | 1 | 3248 | 82 |
| small scale biochar production | 1.74 | 0.2 | 5645 | 99 |
| sewage sludge to biogas | 1.48 | 0.8 | 3342 | 46 |
| biochar from agricultural waste | 0.32 | 0.8 | 2337 | 32 |
| biochar from biomass and waste | 0.01 | 0.4 | 7094 | 67 |
