ABOUT INDEXING BOARD ARCHIVES AUTHOR GUIDELINES SUBMIT PAPER AUTHORS'S SUBSCRIPTIONS AUTHORS'S PAGE PUBLISHING ETHICS NEWS, EVENTS
REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
ISSN 0034-7752
ISSN 2668-8212 (Online)
Journal Metrics
* Impact Factor 2018-19: 1.605
* 5-Year IF: 1.34
* CiteScore: 1.23
* SNIP: 0.710
* SJR: 0.294
(academic-accelerator.com)
Crossref Member Badge
 DOI  logo

REVISTA DE CHIMIE Latest Issue

LATEST ISSUE >>>

   Volume 71, 2020
   Volume 70, 2019
   Volume 69, 2018
   Volume 68, 2017
   Volume 67, 2016
   Volume 66, 2015
   Volume 65, 2014
   Volume 64, 2013
   Volume 63, 2012
   Volume 62, 2011
   Volume 61, 2010
   Volume 60, 2009
   Volume 59, 2008
   Volume 58, 2007
   Volume 57, 2006
   Volume 56, 2005
   Volume 55, 2004
   Volume 54, 2003
   Volume 53, 2002
 
<<<< back

Revista de Chimie, Volume 65, Issue 1, pp. (2014)




MIRCEA SEGARCEANU, DANIELA ELENA PASCU, GINA ALINA TRAISTARU, MIHAELA PASCU (NEAGU), SOFIA TEODORESCU, CRISTINA ORBECI Optimization of Membrane Processes with Polysulfone/Polyaniline Composite Membranes

Abstract:

In this paper we studied the optimization of the process parameters of membranes. We studied four ions: nitrate, sulfate, chloride and phosphate. The results of the experimental study were processed using the following mathematical models: Langmuir, Freundlich and Temkin - Pyzhev. The four ions were microfiltered through a composite membrane with pores of different sizes (0.1mm and 0.5 mm). The four ions analyzed were: nitrates, sulfates, phosphates and chlorides. To determine these, ions were used together with spectrophotometric and titrimetric methods. Experiments were conducted at three different temperatures: 288K, 308K, 328k. The sorption parameters and the fitting of the models were determined by nonlinear regression and then discussed. Wastewaters containing these ions were filtered through polysulfone/ polyaniline (PSf/PANI) membrane composites. The morphological characterization of the membrane was performed using scanning electron microscopy (SEM) and the structural characterization was performed using infrared spectroscopy (FT-IR). The best results were obtained using the Langmuir model for nitrate ions and Temkin- Pyzhev for chloride ions. The following parameters for each ion in part were: initial ion concentration, solution pH, working adsorption capacity, size and thickness of the composite membrane and temperature. The best results for the adsorption capacity were obtained with 0.1mm composite membranes for nitrate and sulfate ions. Keywords: composite membrane, nitrate, sulfate, phosphate, chloride, mathematical models

Issue: 2014 Volume 65, Number 1
Pages:
download pdf   Download Pdf Article
 
Views number: 161    |     Downloads number: 29  
<<<< back
 
PUBLISHING SECTION
Author Guidelines
 * Paper Drafting
 * Paper Template
 * Paper Submission
 * Author Payments
Ghidul Autorului (ro)
Publishing Ethics
Submit Paper
Author's Page
  Search Authors
  News, Events
 chimie
*REVISTA DE CHIMIE - 70 de ani de aparitie neintrerupta*

Un eveniment special pentru comunitatea stiintifica din Romania va fi organizat in data de
4 martie 2020
Hotel Hilton Athenee Palace Bucuresti
Sala Regina Maria
ora 9.30.

Va asteptam.
 Chemistry Conferences Conferences of Contemporary Chemistry
 Publicatii de Chimie Publicatii de Chimie in Romania.
Scurt istoric
 BIBLIOTECA CHIMIEI Biblioteca Chimiei
 Materiale Plastice Materiale Plastice