@misc{10481/61615,
year = {2019},
month = {4},
url = {http://hdl.handle.net/10481/61615},
abstract = {Production water is the largest byproduct of the oil industry and must be treated before
 disposal, either by reinjection or shedding processes, with the purpose of eliminating emulsified crude
 oil and avoiding the operational and toxic problems associated with it. The objective of this work was
 to immobilize a hydrocarbon-degrading strain on activated carbons, to evaluate the biocomplex’s
 capacity for catalyzing hydrocarbons from Oil in Brine emulsions (O/W) simulating produced waters.
 Activated carbons were prepared and their chemical and porous properties were estimated by XPS,
 pHPZC and SEM, N2 adsorption, and mercury porosimetry. Biomaterials were synthesized and
 hydrocarbon removal tests were performed. The basic and neutral carbons immobilized Pseudomonas
 stutzeri by physisorption in the macroporous space and electrostatic interactions (108–109 UFC),
 while acid materials inhibited bacterial growth. Removal of aromatic hydrocarbons was more efficient
 using materials (60%–93%) and biomaterials (16%–84%) than using free P. stutzeri (1%–47%), and
 the removal efficiencies of crude oil were 22%, 48% and 37% for P. stutzeri and two biomaterials,
 respectively. The presence of minor hydrocarbons only when P. stutzeri was present confirmed the
 biotransformation process.},
organization = {The authors thank Colciencias for financing the doctoral studies of Karol Zapata Acosta through the
announcement 617/2014. The authors also thank Colciencias and the Agencia Nacional de Hidrocarburos (ANH)
for the support provided in the agreement 064-2018. Part of this work was supported by Junta de Andalucía
(grant numbers P12-RNM-2892 and RNM172).},
publisher = {MDPI},
keywords = {Biomaterials},
keywords = {Crude oil},
keywords = {Produced water},
keywords = {Hydrocarbons},
keywords = {Immobilization},
keywords = {Catalysis},
title = {Immobilization of P. stutzeri on Activated Carbons for Degradation of Hydrocarbons from Oil-in-Saltwater Emulsions},
doi = {10.3390/nano9040500},
author = {Zapata Acosta, Karol and Carrasco Marín, Francisco and Cortés, Farid and Franco, Camilo A. and Lopera, Sergio H. and Rojano, Benjamín A.},
}