Eco-efficient recovery of bio-based volatile C2-6 fatty acids.

ABSTRACT:

Background

Volatile fatty acids (VFAs) are produced by fermentation of various bio-sources and human wastes at minimal cost; sometimes, even sources having a prepaid processing fee were used. However, low concentrations of VFAs in water have prevented their commercial production, even with modern separation technologies, due to the high operating costs. We have applied newly developed solvents, selected by chemical structure similarity, to the separation of five different VFAs.

Results

Since most of the water was separated by extraction using hexyl acetate and nonyl acetate, the utilities necessary for solvent recovery and product purification were a fraction of those required by the existing VFAs' separation processes. The solvents separated almost all the water in the feed

SUBMITTER: Woo HC 

PROVIDER: S-EPMC6477716 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature