Assertion: lignin | /r/HasProperty | waste
Facets:
Source sentences:
text: Initially, when biofuel was produced from lignocellulosic biomass, lignin was regarded as waste generated by the biorefinery and had to be removed, because of its inhibitory effects on fermentative bacteria.
text: The lignin industry is gaining considerable traction, as lignin is considered as waste and a major portion of it that is produced around the world is mostly burned to be used as a fuel in manufacturing.