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

Carolina Calderón, Marcela Levío-Raimán and M. Cristina Diez
Additional contact information
Carolina Calderón: Doctoral Program in Sciences of Natural Resources, University of La Frontera, Temuco 4780000, Chile
Marcela Levío-Raimán: Doctoral Program in Sciences of Natural Resources, University of La Frontera, Temuco 4780000, Chile
M. Cristina Diez: Biotechnological Research Center Applied to the Environment (CIBAMA-BIOREN), University of La Frontera, Temuco 4780000, Chile

IJERPH, 2021, vol. 19, issue 1, 1-17

Abstract: 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.

Keywords: cadmium removal; iminodiacetic resin; hydrolysate protein; fixed-bed column; Thomas model (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/19/1/442/pdf (application/pdf)
https://www.mdpi.com/1660-4601/19/1/442/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:19:y:2021:i:1:p:442-:d:715777

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().