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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Continuous System of Combined Columns of Ion Exchange Resins and Activated Charcoal as a New Approach for the Removal of Toxics from Sugar Cane Bagasse Hemicellulosic Hydrolysate

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Author(s):
Santos, Julio C. [1] ; Marton, Jose M. [2] ; Felipe, Maria G. A. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Escola Engn Lorena, Dept Biotecnol, BR-12602810 Sao Paulo - Brazil
[2] CETESB Companhia Ambiental Estado Sao Paulo, Agenda Ambiental Sao Jose dos Campos, BR-12211115 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Industrial & Engineering Chemistry Research; v. 53, n. 42, p. 16494-16501, OCT 22 2014.
Web of Science Citations: 9
Abstract

A continuous system of combined columns of ion exchange resins and activated charcoal was proposed as a new approach for the removal of toxics from sugar cane bagasse hemicellulosic hydrolysate. A factorial design was carried out to evaluate the influence of temperature and feed flow rate in the performance of the detoxification procedure. By using a temperature of 30 circle C and a flow rate of 2.5 V-B/h, the total removal of furfural and 5-(hydroxymethyl) furfural was observed, as well as a large reduction in the color and concentration of phenolic compounds. Removal of metals was also observed, with 50, 63, and 23% reduction in the concentration of copper, chromium, and nickel, respectively. The product of the detoxification process was a hydrolysate with a reduced concentration of inhibitors that can be used as a raw material for a number of processes to obtain products of economic and social interest. (AU)