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Advisor(s)
Abstract(s)
Produced water (PW) and crude glycerin (CG) are compounds overproduced by the
oil and biodiesel industry and significant scientific efforts are being applied for properly
recycling them. The aim of this research is to combine such industrial byproducts
for sustaining the production of xanthan by Xanthomonas campestris. Xanthan yields
and viscosity on distinct PW ratios (0, 10, 15, 25, 50, 100) and on 100% dialyzed PW
(DPW) in shaker batch testing identified DPW treatment as the best approach for
further bioreactor experiments. Such experiments showed a xanthan yield of
17.3 g/L within 54 h and a viscosity of 512 mPa s. Physical-chemical characterization
(energy dispersive X-ray spectroscopy, scanning electron microscopy and Raman
spectroscopy) showed similarities between the produced gum and the experimental
control. This research shows a clear alternative for upcycling high salinity PW and CG
for the generation of a valued bioproduct for the oil industry.
Description
Keywords
Crude glycerin Produced water Reuse Stirred-tank bioreactor Xanthan gum
Citation
Sampaio, Igor Carvalho Fontes; Crugeira, Pedro Jorge Louro; Ferreira, Joalene de Azevedo Santos; Santos, Jacson Nunes dos; Matos, Josilene Borges Torres Lima; Pinheiro, Antonio Luiz Barbosa; Chinalia, Fabio Alexandre; Almeida, Paulo Fernando de (2022). Up‐recycling oil produced water as the media‐base for the production of xanthan gum. Biopolymers. ISSN 1097-0282. p. 1-9
Publisher
John Wiley