Recovery of Spent Sulphuric Acid by Diffusion Dialysis Using a Spiral Wound Module
In this study, we assess the effects of volumetric flow and feed temperature on the performance of a spiral-wound module for the recovery of free acid using diffusion dialysis. Performance was evaluated using a set of equations based on mass balance under steady-state conditions that describe the fr...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/96c55c6b1c4f4ee3bc30df89cb7c70bc |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:96c55c6b1c4f4ee3bc30df89cb7c70bc |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:96c55c6b1c4f4ee3bc30df89cb7c70bc2021-11-11T17:15:33ZRecovery of Spent Sulphuric Acid by Diffusion Dialysis Using a Spiral Wound Module10.3390/ijms2221118191422-00671661-6596https://doaj.org/article/96c55c6b1c4f4ee3bc30df89cb7c70bc2021-10-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/21/11819https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067In this study, we assess the effects of volumetric flow and feed temperature on the performance of a spiral-wound module for the recovery of free acid using diffusion dialysis. Performance was evaluated using a set of equations based on mass balance under steady-state conditions that describe the free acid yield, rejection factors of metal ions and stream purity, along with chemical analysis of the outlet streams. The results indicated that an increase in the volumetric flow rate of water increased free acid yield from 88% to 93%, but decreased Cu<sup>2+</sup> and Fe<sup>2+</sup> ion rejection from 95% to 90% and 91% to 86%, respectively. Increasing feed temperature up to 40 °C resulted in an increase in acid flux of 9%, and a reduction in Cu<sup>2+</sup> and Fe<sup>2+</sup> ion rejection by 2–3%. Following diffusion dialysis, the only evidence of membrane degradation was a slight drop in permselectivity and an increase in diffusion acid and salt permeability. Results obtained from the laboratory tests used in a basic economic study showed that the payback time of the membrane-based regeneration unit is approximately one year.Arthur MerkelLadislav ČopákLukáš DvořákDaniil GolubenkoLibor ŠedaMDPI AGarticleanion-exchange homogeneous membranemembrane degradationmass balancecase studypayback timeBiology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 11819, p 11819 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
anion-exchange homogeneous membrane membrane degradation mass balance case study payback time Biology (General) QH301-705.5 Chemistry QD1-999 |
| spellingShingle |
anion-exchange homogeneous membrane membrane degradation mass balance case study payback time Biology (General) QH301-705.5 Chemistry QD1-999 Arthur Merkel Ladislav Čopák Lukáš Dvořák Daniil Golubenko Libor Šeda Recovery of Spent Sulphuric Acid by Diffusion Dialysis Using a Spiral Wound Module |
| description |
In this study, we assess the effects of volumetric flow and feed temperature on the performance of a spiral-wound module for the recovery of free acid using diffusion dialysis. Performance was evaluated using a set of equations based on mass balance under steady-state conditions that describe the free acid yield, rejection factors of metal ions and stream purity, along with chemical analysis of the outlet streams. The results indicated that an increase in the volumetric flow rate of water increased free acid yield from 88% to 93%, but decreased Cu<sup>2+</sup> and Fe<sup>2+</sup> ion rejection from 95% to 90% and 91% to 86%, respectively. Increasing feed temperature up to 40 °C resulted in an increase in acid flux of 9%, and a reduction in Cu<sup>2+</sup> and Fe<sup>2+</sup> ion rejection by 2–3%. Following diffusion dialysis, the only evidence of membrane degradation was a slight drop in permselectivity and an increase in diffusion acid and salt permeability. Results obtained from the laboratory tests used in a basic economic study showed that the payback time of the membrane-based regeneration unit is approximately one year. |
| format |
article |
| author |
Arthur Merkel Ladislav Čopák Lukáš Dvořák Daniil Golubenko Libor Šeda |
| author_facet |
Arthur Merkel Ladislav Čopák Lukáš Dvořák Daniil Golubenko Libor Šeda |
| author_sort |
Arthur Merkel |
| title |
Recovery of Spent Sulphuric Acid by Diffusion Dialysis Using a Spiral Wound Module |
| title_short |
Recovery of Spent Sulphuric Acid by Diffusion Dialysis Using a Spiral Wound Module |
| title_full |
Recovery of Spent Sulphuric Acid by Diffusion Dialysis Using a Spiral Wound Module |
| title_fullStr |
Recovery of Spent Sulphuric Acid by Diffusion Dialysis Using a Spiral Wound Module |
| title_full_unstemmed |
Recovery of Spent Sulphuric Acid by Diffusion Dialysis Using a Spiral Wound Module |
| title_sort |
recovery of spent sulphuric acid by diffusion dialysis using a spiral wound module |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/96c55c6b1c4f4ee3bc30df89cb7c70bc |
| work_keys_str_mv |
AT arthurmerkel recoveryofspentsulphuricacidbydiffusiondialysisusingaspiralwoundmodule AT ladislavcopak recoveryofspentsulphuricacidbydiffusiondialysisusingaspiralwoundmodule AT lukasdvorak recoveryofspentsulphuricacidbydiffusiondialysisusingaspiralwoundmodule AT daniilgolubenko recoveryofspentsulphuricacidbydiffusiondialysisusingaspiralwoundmodule AT liborseda recoveryofspentsulphuricacidbydiffusiondialysisusingaspiralwoundmodule |
| _version_ |
1718432133267062784 |