Repositorio
Institucional

Diez, M. Cristina

Calderon, Carolina

Levio-Raiman, Marcela

Cadmium Removal from Giant Squid (Dosidicus gigas) Hydrolysate in Fixed-Bed Columns Packed with Iminodiacetic Resin: Tools for Scaling up the Process

MDPI

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH

en

Giant squid hydrolysate (GSH) elaborated from different batches from a fishing company was evaluated for cadmium removal. Fixed-bed column packed with iminodiacetic resin as adsorbent was used. GSH solution at different cadmium concentrations were fed in the fixed-bed column and breakthrough curves were evaluated. A high degree of metal removal from the solution was achieved and the saturation point (C-e/C-0 <= 0.8) was achieved more quickly at higher concentrations of cadmium. The maximum capacity of adsorption (q(0)) was obtained using the Thomas model, where 1137.4, 860.4, 557.4, and 203.1 mg g(-1) were achieved using GSH with concentrations of 48.37, 20.97, 12.13, and 3.26 mg L-1, respectively. Five cycles of desorption of the resin with HCl (1 M) backflow and regeneration with NaOH (0.5 M) were also evaluated, where no significant differences (p-value > 0.05) were observed between each cycle, with an average of 935.9 mg g(-1) of q(max). The in-series columns evaluated reached a total efficiency of 90% on average after the third column in GSH with a cadmium concentration of 20.97 mg L-1. This kind of configuration should be considered the best alternative for cadmium removal from GSH. Additionally, the chemical composition of GSH, which was considered a quality parameter, was not affected by cadmium adsorption.

artículo original

.This research was funded by ANID/FONDAP/15130015, DIUFRO GAP DI18, ANID Scholarship N?21140220, CORFO PI-1642 and Sociedad Pesquera Landes S.A-Chile.

.Esta investigación fue financiada por ANID/FONDAP/15130015, DIUFRO GAP DI18, Beca ANID N°21140220, CORFO PI-1642 y Sociedad Pesquera Landes S.A-Chile.

10.3390/ijerph19010442

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cadmium removal

iminodiacetic resin

hydrolysate protein

fixed-bed column

Thomas model

CHELATING RESIN

ION-EXCHANGE

METAL

ADSORPTION

SORPTION

CD(II)

Ciencias Ambientales

Salud pública

ambiental y ocupacional

eliminación de cadmio

resina iminodiacética

hidrolizado de proteína

columna de lecho fijo

modelo Thomas

RESINA QUELANTE

INTERCAMBIO IÓNICO

METAL

ADSORPCIÓN

SORPCIÓN

CD(II)

Biorremediación

Biotecnología Ambiental

Biotecnología Industrial

Cadmium Removal from Giant Squid (Dosidicus gigas) Hydrolysate in Fixed-Bed Columns Packed with Iminodiacetic Resin: Tools for Scaling up the Process

artículo original

version publicada

CC BY 4.0

CC BY 4.0

acceso abierto

acceso abierto

ANID-FONDAP 1513001

UFRO GAP DI18

ANID 21140220

CORFO PI-1642

ANID FONDAP 1513001

WOS:000758885500001