Article ID Journal Published Year Pages File Type
4987752 Desalination 2017 9 Pages PDF
Abstract
Modern bio-refineries generate considerable volumes of wastewater that are highly coloured (5600-572,000 PtCo) as well as being concentrated in both salts (conductivities up 72.4 mS cm− 1) and organics (up to 380 g COD L− 1). In this study, bench-scale batch electrodialysis was performed to examine the feasibility of separating salts from organics for a range of industrial biorefinery streams. High levels of salt removal (up to 96% for a lignocellulosic effluent) were possible with minimal organic losses (0.3-6.3%), while key performance parameters were highly encouraging (current efficiencies = 69-104%; specific power consumption = 0.44-1.59 kWh kg− 1 of salt recovered). Collectively, the experimental results obtained here showed the cost-effective potential of electrodialysis to separate salts from organics in complex bio-refinery streams at the industrial scale.
Related Topics
Physical Sciences and Engineering Chemical Engineering Filtration and Separation
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