Membrane screening for humic substances removal

Ildikó Galambos, G. Vatai, E. Békássy-Molnár

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

To produce healthy drinking water is the main problem almost all over the world. The aim of this study is to find an efficient method to remove humic substances (HS) from water, because HS cause some types of cancer when they react with chlorine or other disinfection materials composing disinfection by-products, e.g. trihalomethans. Different membranes with a wide range of nominal molecular weight cut off (NMWCO), using different recycle flow rates and transmembrane pressures were investigated. The solutions were well-water with humic substances, model-solution with humic acid from Sigma-Aldrich GmbH and deionized water. The permeates and feeds in the case of model-solution and natural well-water were analyzed measuring the UV absorbance on 254 nanometer. Based on the experiments, it can be established that the membranes with NMWCO ≤2 kDa are suitable for the removal of humic substances. The UF membranes with NMWCO >2 kDa were proper for model-solutions, but in the case of natural well-water the HS content of the permeates was higher than the limit value (3.5 mg/L). The measured HS values showed a moderate increase with an increase in the NMWCO of the membranes.

Original languageEnglish
Pages (from-to)111-116
Number of pages6
JournalDesalination
Volume162
Issue number1-3
DOIs
Publication statusPublished - Mar 10 2004

Fingerprint

Humic Substances
humic substance
Screening
membrane
Membranes
well water
Molecular weight
Water
Disinfection
disinfection
absorbance
Deionized water
Chlorine
humic acid
screening
removal
chlorine
cancer
Potable water
Drinking Water

Keywords

  • Disinfection by-products
  • Humic substances
  • Membrane filtration
  • Nanofiltration
  • Natural organic matter
  • Ultrafiltration

ASJC Scopus subject areas

  • Filtration and Separation

Cite this

Membrane screening for humic substances removal. / Galambos, Ildikó; Vatai, G.; Békássy-Molnár, E.

In: Desalination, Vol. 162, No. 1-3, 10.03.2004, p. 111-116.

Research output: Contribution to journalArticle

Galambos, Ildikó ; Vatai, G. ; Békássy-Molnár, E. / Membrane screening for humic substances removal. In: Desalination. 2004 ; Vol. 162, No. 1-3. pp. 111-116.
@article{afd9fe86c957458bab94f231ea726458,
title = "Membrane screening for humic substances removal",
abstract = "To produce healthy drinking water is the main problem almost all over the world. The aim of this study is to find an efficient method to remove humic substances (HS) from water, because HS cause some types of cancer when they react with chlorine or other disinfection materials composing disinfection by-products, e.g. trihalomethans. Different membranes with a wide range of nominal molecular weight cut off (NMWCO), using different recycle flow rates and transmembrane pressures were investigated. The solutions were well-water with humic substances, model-solution with humic acid from Sigma-Aldrich GmbH and deionized water. The permeates and feeds in the case of model-solution and natural well-water were analyzed measuring the UV absorbance on 254 nanometer. Based on the experiments, it can be established that the membranes with NMWCO ≤2 kDa are suitable for the removal of humic substances. The UF membranes with NMWCO >2 kDa were proper for model-solutions, but in the case of natural well-water the HS content of the permeates was higher than the limit value (3.5 mg/L). The measured HS values showed a moderate increase with an increase in the NMWCO of the membranes.",
keywords = "Disinfection by-products, Humic substances, Membrane filtration, Nanofiltration, Natural organic matter, Ultrafiltration",
author = "Ildik{\'o} Galambos and G. Vatai and E. B{\'e}k{\'a}ssy-Moln{\'a}r",
year = "2004",
month = "3",
day = "10",
doi = "10.1016/S0011-9164(04)00033-5",
language = "English",
volume = "162",
pages = "111--116",
journal = "Desalination",
issn = "0011-9164",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Membrane screening for humic substances removal

AU - Galambos, Ildikó

AU - Vatai, G.

AU - Békássy-Molnár, E.

PY - 2004/3/10

Y1 - 2004/3/10

N2 - To produce healthy drinking water is the main problem almost all over the world. The aim of this study is to find an efficient method to remove humic substances (HS) from water, because HS cause some types of cancer when they react with chlorine or other disinfection materials composing disinfection by-products, e.g. trihalomethans. Different membranes with a wide range of nominal molecular weight cut off (NMWCO), using different recycle flow rates and transmembrane pressures were investigated. The solutions were well-water with humic substances, model-solution with humic acid from Sigma-Aldrich GmbH and deionized water. The permeates and feeds in the case of model-solution and natural well-water were analyzed measuring the UV absorbance on 254 nanometer. Based on the experiments, it can be established that the membranes with NMWCO ≤2 kDa are suitable for the removal of humic substances. The UF membranes with NMWCO >2 kDa were proper for model-solutions, but in the case of natural well-water the HS content of the permeates was higher than the limit value (3.5 mg/L). The measured HS values showed a moderate increase with an increase in the NMWCO of the membranes.

AB - To produce healthy drinking water is the main problem almost all over the world. The aim of this study is to find an efficient method to remove humic substances (HS) from water, because HS cause some types of cancer when they react with chlorine or other disinfection materials composing disinfection by-products, e.g. trihalomethans. Different membranes with a wide range of nominal molecular weight cut off (NMWCO), using different recycle flow rates and transmembrane pressures were investigated. The solutions were well-water with humic substances, model-solution with humic acid from Sigma-Aldrich GmbH and deionized water. The permeates and feeds in the case of model-solution and natural well-water were analyzed measuring the UV absorbance on 254 nanometer. Based on the experiments, it can be established that the membranes with NMWCO ≤2 kDa are suitable for the removal of humic substances. The UF membranes with NMWCO >2 kDa were proper for model-solutions, but in the case of natural well-water the HS content of the permeates was higher than the limit value (3.5 mg/L). The measured HS values showed a moderate increase with an increase in the NMWCO of the membranes.

KW - Disinfection by-products

KW - Humic substances

KW - Membrane filtration

KW - Nanofiltration

KW - Natural organic matter

KW - Ultrafiltration

UR - http://www.scopus.com/inward/record.url?scp=1842663037&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1842663037&partnerID=8YFLogxK

U2 - 10.1016/S0011-9164(04)00033-5

DO - 10.1016/S0011-9164(04)00033-5

M3 - Article

VL - 162

SP - 111

EP - 116

JO - Desalination

JF - Desalination

SN - 0011-9164

IS - 1-3

ER -