Research Article
Adsorptive Removal of Methylene Blue Dye Using Biowaste Materials: Barley Bran and Enset Midrib Leaf
Table 5
Comparative presentation of costs of adsorbents.
| Adsorbents | Cost USD/kg | Reference |
| Activated carbon from nutshells | 2.15 | [45] | Virgin carbon | 0.86-2.95 | [46] | Reactivated carbon | 0.43-0.70 | [47] | Alumina | 0.03 | [48] | Sludge-based adsorbents | 0.1-0.2 | [41] | Clay minerals | 0.04-0.12 | [49] | Zeolite | 0.14-0.8 | [48, 50] | Diatomite | 0.011-1.10 | [48] | BB | <0.012 (processing cost only) | Current study | EVML | <0.02 (processing cost only) | Current study |
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