A new approach to chromium concentration from salt mixture solution using nanofiltration

Paweł Religa , Anna Kowalik , Paweł Gierycz

Abstract

The possibility of increasing of chloride ions in permeate, with keeping high chromium(III) retention, during nanofiltration of salt mixture solution characterized by very low pH has been investigated. An influence of the initial chlorides concentration and the relationship between chlorides and sulfates concentration on permeate composition and chromium(III) concentration factor was analyzed. Based on the obtained results the initial chlorides (on level 12–16 gCl−/dm3) and sulfates concentration as well as Cl−/ SO 4 2 - ratio (below 1) in the feed has been determined. The obtained results allowed to offer the new approach to nanofiltration of chromium tannery wastewater by the recirculation of part of permeate for obtaining the optimum feed composition. In this way the conducted nanofiltration of chromium tannery wastewater will enable the direct reuse of both retentate – recovered tanning bath (high concentration of chromium) and permeate – recovered pickling bath (high concentration of chloride ions).
Author Paweł Religa - [Kazmierz Pulaski University of Technology and Humanities (UTHRAD), MNiSW [80]]
Paweł Religa,,
-
- Uniwersytet Technologiczno-Humanistyczny im. Kazimierza Pułaskiego w Radomiu
, Anna Kowalik (FCPE / DSP)
Anna Kowalik,,
- Department of Separation Processes
, Paweł Gierycz (FCPE / DSP)
Paweł Gierycz,,
- Department of Separation Processes
Journal seriesSeparation and Purification Technology, ISSN 1383-5866, (A 40 pkt)
Issue year2011
Vol82
Pages114-120
Publication size in sheets0.5
Keywords in Englishchromium concentration, nanofiltration (NF), permeate recirculation
ASJC Classification1506 Filtration and Separation; 1602 Analytical Chemistry
DOIDOI:10.1016/j.seppur.2011.08.032
URL http://www.sciencedirect.com/science/article/pii/S1383586611005016
Languageen angielski
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Religa P. (i in.) - A new approach....pdf 856.63 KB
Score (nominal)40
Score sourcejournalList
Publication indicators WoS Citations = 11; Scopus SNIP (Source Normalised Impact per Paper): 2014 = 1.54; WoS Impact Factor: 2011 = 2.921 (2) - 2011=3.562 (5)
Citation count*26 (2020-02-24)
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