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

OSIM Nr. R102355
ISSN Print 0034-7752
ISSN Online 2668-8212
Journal Metrics
* Impact Factor 2019: 1.755
* 5-Year IF: 1.351
* CiteScore: 2.2
* H index: 28
(InCites Journal Citation Reports)

SPECIAL ISSUE >>>

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
 
<<<< back

Revista de Chimie (Rev. Chim.), Year 2020, Volume 71, Issue 1, 100-106

https://doi.org/10.37358/RC.20.1.7819

Daniel Mitru, Gheorghe Nechifor, Stefania Gheorghe, Alina Roxana Banciu, Lucian Ionescu, Catalina Stoica, Daniela Liliana Ionica, Irina Eugenia Lucaciu

Removal and Effects of Surfactants in Activated Sludge System

Abstract:

The widespread use of detergents has raised concern with regard to the environmental pollution caused by their active substances, which are biorefractory, toxic or persistent. Even though anionic and non-ionic surfactants often used in commercial detergents composition are reasonably degradable under aerobic conditions and not particularly toxic at low concentrations, high concentration of surfactants influenced the activated sludge activity and are harmful for the aquatic environment. In the literature, data on the biodegradability and/or ecotoxicity of a certain type of surfactant (anionic, nonionic, cationic) are usually presented. Our study aimed to assess the biodegradability of a mixture of two types of surfactants (anionic mixed with non-ionic) and also, effects caused by their presence of elevated concentrations to the activated sludge micro-organisms, within a batch experiment. We performed a biodegradability test (according Zahn-Wellens method) on 2 synthetic solutions with high concentrations of anionic surfactant -methyl dodecylbenzene sulfonate (15-25 mg/L) and non-ionic surfactant -4-nonylphenyl-polyethylene glycol (10 mg/L). The study established different percent of biodegradability (measured by COD decrease and surfactants removal) depending on initial concentrations of anionic and nonionic surfactants in the tested solutions. High surfactants concentrations modulated the activity and morphology of activated sludge, so its degradation efficiency of the organic substrate has decreased. Surfactant solutions resulting from biodegradability experiment have been tested for toxicity to planktonic crustaceans (Daphnia magna).
Keywords:
anionic surfactants; non-ionic surfactants; COD; activated sludge; flocs morphology

Issue: 2020, Volume 71, Issue 1
Pages: 100-106
Publication date: 2020/2/7
https://doi.org/10.37358/RC.20.1.7819
download pdf   Download Pdf Article
Creative Commons License
This article is published under the Creative Commons Attribution 4.0 International License
Citation Styles
Cite this article as:
MITRU, D., NECHIFOR, G., GHEORGHE, S., BANCIU, A.R., IONESCU, L., STOICA, C., IONICA, D.L., LUCACIU, I.E., Removal and Effects of Surfactants in Activated Sludge System, Rev. Chim., 71(1), 2020, 100-106.

Vancouver
Mitru D, Nechifor G, Gheorghe S, Banciu AR, Ionescu L, Stoica C, Ionica DL, Lucaciu IE. Removal and Effects of Surfactants in Activated Sludge System. Rev. Chim.[internet]. 2020 Jan;71(1):100-106. Available from: https://doi.org/10.37358/RC.20.1.7819


APA 6th edition
Mitru, D., Nechifor, G., Gheorghe, S., Banciu, A.R., Ionescu, L., Stoica, C., Ionica, D.L. & Lucaciu, I.E. (2020). Removal and Effects of Surfactants in Activated Sludge System. Revista de Chimie, 71(1), 100-106. https://doi.org/10.37358/RC.20.1.7819


Harvard
Mitru, D., Nechifor, G., Gheorghe, S., Banciu, A.R., Ionescu, L., Stoica, C., Ionica, D.L., Lucaciu, I.E. (2020). 'Removal and Effects of Surfactants in Activated Sludge System', Revista de Chimie, 71(1), pp. 100-106. https://doi.org/10.37358/RC.20.1.7819


IEEE
D. Mitru, G. Nechifor, S. Gheorghe, A.R. Banciu, L. Ionescu, C. Stoica, D.L. Ionica, I.E. Lucaciu, "Removal and Effects of Surfactants in Activated Sludge System". Revista de Chimie, vol. 71, no. 1, pp. 100-106, 2020. [online]. https://doi.org/10.37358/RC.20.1.7819


Text
Daniel Mitru, Gheorghe Nechifor, Stefania Gheorghe, Alina Roxana Banciu, Lucian Ionescu, Catalina Stoica, Daniela Liliana Ionica, Irina Eugenia Lucaciu,
Removal and Effects of Surfactants in Activated Sludge System,
Revista de Chimie,
Volume 71, Issue 1,
2020,
Pages 100-106,
ISSN 2668-8212,
https://doi.org/10.37358/RC.20.1.7819.
(https://revistadechimie.ro/Articles.asp?ID=7819)
Keywords: anionic surfactants; non-ionic surfactants; COD; activated sludge; flocs morphology


RIS
TY - JOUR
T1 - Removal and Effects of Surfactants in Activated Sludge System
A1 - Mitru, Daniel
A2 - Nechifor, Gheorghe
A3 - Gheorghe, Stefania
A4 - Banciu, Alina Roxana
A5 - Ionescu, Lucian
A6 - Stoica, Catalina
A7 - Ionica, Daniela Liliana
A8 - Lucaciu, Irina Eugenia
JF - Revista de Chimie
JO - Rev. Chim.
PB - Revista de Chimie SRL
SN - 2668-8212
Y1 - 2020
VL - 71
IS - 1
SP - 100
EP - 106
UR - https://doi.org/10.37358/RC.20.1.7819
KW - anionic surfactants
KW - non-ionic surfactants
KW - COD
KW - activated sludge
KW - flocs morphology
ER -


BibTex
@article{RevCh2020P100,
author = {Mitru Daniel and Nechifor Gheorghe and Gheorghe Stefania and Banciu Alina Roxana and Ionescu Lucian and Stoica Catalina and Ionica Daniela Liliana and Lucaciu Irina Eugenia},
title = {Removal and Effects of Surfactants in Activated Sludge System},
journal = {Revista de Chimie},
volume = {71},
number = {1},
pages = {100-106},
year = {2020},
issn = {2668-8212},
doi = {https://doi.org/10.37358/RC.20.1.7819},
url = {https://revistadechimie.ro/Articles.asp?ID=7819}
}
 
<<<< back
 
PUBLISHING SECTION
Author Guidelines
 * Paper Drafting
 * Paper Template
 * Ethical Statement
 * Paper Submission
 * Author Payments
Ghidul Autorului (ro)
Submit Paper
Author's Page
Publishing Ethics
Peer Review Process
Open Access & Archiving Policy
 Search Authors
 LATEST NEWS
REvista de Chimie Revista de Chimie - 70 de ani de aparitie neintrerupta.. detalii
dictionar English-Romanian Dictionary for Mechanical Engineering
(download pdf)
  News, Events
Crossref Member Badge
 DOI  logo
 Gold Open Access | Source=http://www.plos.org/  | Author=art designer at PLoS
Creative Commons License
 Conferences of Contemporary
 Chemistry
 Biblioteca Chimiei
 Materiale Plastice