Analyses of calcium carbonate scale deposition on four RO membranes under a seawater desalination condition

Nam Wook Kang, Seockheon Lee, Dooil Kim, Seungkwan Hong, Ji Hyang Kweon

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Inorganic fouling is one of the critical operational issues in reverse osmosis membrane. Few researches investigated effects of membrane surface characteristics on inorganic fouling and on anti-scaling techniques although the fouling occurs on the membrane surface. The objective of this paper was to examine whether different characteristics of deposition of calcium carbonate solids would occur on four membranes having distinctive surface properties. A lab-scale cell reactor with a crossflow velocity was installed and two coupons were used for one type of membranes. Two feed waters were examined: concentrated synthetic seawater simulating a 30% recovery and a concentrate from a seawater RO plant in operation at Changwon, Korea. The amounts of solid deposition on the attached membranes were increased in all four membranes but the degree of deposition on each membrane was different. Various types of calcium carbonate solids were clearly detected by both XRD and SEM analyses. In general, a membrane with greater roughness and negative surface charge appeared to form more scales. This implied that membrane surface characteristics such as roughness and surface charge affected inorganic fouling, presumably by providing favourable sites for precipitation and enhancing attraction of species to the membrane surface.

Original languageEnglish
Pages (from-to)1573-1580
Number of pages8
JournalWater Science and Technology
Volume64
Issue number8
DOIs
Publication statusPublished - 2011 Oct 31

Fingerprint

Calcium Carbonate
Seawater
Calcium carbonate
Desalination
calcium carbonate
desalination
membrane
seawater
Membranes
Fouling
fouling
Surface charge
roughness
Surface roughness
Osmosis membranes
Osmosis
Reverse osmosis
Surface Properties
Korea
Surface properties

Keywords

  • CaCO scale
  • Inorganic scale
  • Membrane surface characteristics
  • Seawater reverse osmosis desalination

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

Cite this

Analyses of calcium carbonate scale deposition on four RO membranes under a seawater desalination condition. / Kang, Nam Wook; Lee, Seockheon; Kim, Dooil; Hong, Seungkwan; Kweon, Ji Hyang.

In: Water Science and Technology, Vol. 64, No. 8, 31.10.2011, p. 1573-1580.

Research output: Contribution to journalArticle

Kang, Nam Wook ; Lee, Seockheon ; Kim, Dooil ; Hong, Seungkwan ; Kweon, Ji Hyang. / Analyses of calcium carbonate scale deposition on four RO membranes under a seawater desalination condition. In: Water Science and Technology. 2011 ; Vol. 64, No. 8. pp. 1573-1580.
@article{7b8902f681c345d6a144435278086620,
title = "Analyses of calcium carbonate scale deposition on four RO membranes under a seawater desalination condition",
abstract = "Inorganic fouling is one of the critical operational issues in reverse osmosis membrane. Few researches investigated effects of membrane surface characteristics on inorganic fouling and on anti-scaling techniques although the fouling occurs on the membrane surface. The objective of this paper was to examine whether different characteristics of deposition of calcium carbonate solids would occur on four membranes having distinctive surface properties. A lab-scale cell reactor with a crossflow velocity was installed and two coupons were used for one type of membranes. Two feed waters were examined: concentrated synthetic seawater simulating a 30{\%} recovery and a concentrate from a seawater RO plant in operation at Changwon, Korea. The amounts of solid deposition on the attached membranes were increased in all four membranes but the degree of deposition on each membrane was different. Various types of calcium carbonate solids were clearly detected by both XRD and SEM analyses. In general, a membrane with greater roughness and negative surface charge appeared to form more scales. This implied that membrane surface characteristics such as roughness and surface charge affected inorganic fouling, presumably by providing favourable sites for precipitation and enhancing attraction of species to the membrane surface.",
keywords = "CaCO scale, Inorganic scale, Membrane surface characteristics, Seawater reverse osmosis desalination",
author = "Kang, {Nam Wook} and Seockheon Lee and Dooil Kim and Seungkwan Hong and Kweon, {Ji Hyang}",
year = "2011",
month = "10",
day = "31",
doi = "10.2166/wst.2011.671",
language = "English",
volume = "64",
pages = "1573--1580",
journal = "Water Science and Technology",
issn = "0273-1223",
publisher = "IWA Publishing",
number = "8",

}

TY - JOUR

T1 - Analyses of calcium carbonate scale deposition on four RO membranes under a seawater desalination condition

AU - Kang, Nam Wook

AU - Lee, Seockheon

AU - Kim, Dooil

AU - Hong, Seungkwan

AU - Kweon, Ji Hyang

PY - 2011/10/31

Y1 - 2011/10/31

N2 - Inorganic fouling is one of the critical operational issues in reverse osmosis membrane. Few researches investigated effects of membrane surface characteristics on inorganic fouling and on anti-scaling techniques although the fouling occurs on the membrane surface. The objective of this paper was to examine whether different characteristics of deposition of calcium carbonate solids would occur on four membranes having distinctive surface properties. A lab-scale cell reactor with a crossflow velocity was installed and two coupons were used for one type of membranes. Two feed waters were examined: concentrated synthetic seawater simulating a 30% recovery and a concentrate from a seawater RO plant in operation at Changwon, Korea. The amounts of solid deposition on the attached membranes were increased in all four membranes but the degree of deposition on each membrane was different. Various types of calcium carbonate solids were clearly detected by both XRD and SEM analyses. In general, a membrane with greater roughness and negative surface charge appeared to form more scales. This implied that membrane surface characteristics such as roughness and surface charge affected inorganic fouling, presumably by providing favourable sites for precipitation and enhancing attraction of species to the membrane surface.

AB - Inorganic fouling is one of the critical operational issues in reverse osmosis membrane. Few researches investigated effects of membrane surface characteristics on inorganic fouling and on anti-scaling techniques although the fouling occurs on the membrane surface. The objective of this paper was to examine whether different characteristics of deposition of calcium carbonate solids would occur on four membranes having distinctive surface properties. A lab-scale cell reactor with a crossflow velocity was installed and two coupons were used for one type of membranes. Two feed waters were examined: concentrated synthetic seawater simulating a 30% recovery and a concentrate from a seawater RO plant in operation at Changwon, Korea. The amounts of solid deposition on the attached membranes were increased in all four membranes but the degree of deposition on each membrane was different. Various types of calcium carbonate solids were clearly detected by both XRD and SEM analyses. In general, a membrane with greater roughness and negative surface charge appeared to form more scales. This implied that membrane surface characteristics such as roughness and surface charge affected inorganic fouling, presumably by providing favourable sites for precipitation and enhancing attraction of species to the membrane surface.

KW - CaCO scale

KW - Inorganic scale

KW - Membrane surface characteristics

KW - Seawater reverse osmosis desalination

UR - http://www.scopus.com/inward/record.url?scp=80054912510&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80054912510&partnerID=8YFLogxK

U2 - 10.2166/wst.2011.671

DO - 10.2166/wst.2011.671

M3 - Article

C2 - 22335098

AN - SCOPUS:80054912510

VL - 64

SP - 1573

EP - 1580

JO - Water Science and Technology

JF - Water Science and Technology

SN - 0273-1223

IS - 8

ER -