The hydrolyzate of lignocellulocis need to be detoxified before fermentation. However, there must be a consideration of the efficiency and cost when a method is selected.
Biological and membrane are very effective but not cost-effective for bioethanol production;
Lime treatment is effective and cheap but the sugar loss and by-product (gypsum) handling is another cost and environmental issue.
I like the idea of stripping combined with activated charcoal treatment, which works well with good cost advantage. The charcoal can be easily re-activated and reuse.
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