| Challenge |
Weight |
| Availability of biomass |
Major challenge. Suppliers do not find new uses for side streams necessary. |
| Logistic costs |
Major challenge. Due to long distances the transportation cost would significantly increase the total cost of biosorbent material. |
| Biomass acquirement and preprocessing cost |
Major challenge. Many industrial side streams are sold on the open market for a price or used for energy production at plant. |
| Risk to endanger IPR of genetically modified microorganisms |
Minor challenge that only applies to a small proportion of produced side streams. |
| Presence of filtration aids |
Minor challenge. Reports regarding the presence of filtration aids suggest that their effect may be neglected. |
| Presence of various microbial species |
Minor challenge or even positive effect. Possibility for enhanced biosorption by mixed consortium of microbes. |
