Size distribution of aluminum hydroxide flocs in dilute aluminum(III) solutions

Research output: Contribution to journalArticle

Abstract

Electronic particle counting and sizing technique was used in this study to characterize the particle size distribution of Al(OH)3(S) precipitates that are produced from AlCl3, Al2(SO4)3 and two preformed polymeric aluminum salts (polyaluminum chloride and polyaluminum sulfate) solutions. Results indicate that polyaluminum chloride solutions tend to form a large number of small particles with a relative dense structure. On the other hand, alum and polyaluminum sulfate form large particles with a loose structure and which dominate the particle volume distribution. The repulsive electrostatic barrier between primary particles is suggested to be the main factor affecting the particle growth for different Al salt solutions.

Original languageEnglish
Pages (from-to)363-371
Number of pages9
JournalToxicological and Environmental Chemistry
Volume69
Issue number3-4
DOIs
Publication statusPublished - 1999 Jan 1

Fingerprint

Aluminum Hydroxide
Hydrated alumina
Aluminum
hydroxide
aluminum
Sulfates
Salts
Static Electricity
Particle Size
Particle size analysis
Precipitates
Electrostatics
chloride
sulfate
salt
Growth
particle
particle size
aluminum oxychloride

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

@article{f14ead08f3ff4670996dac525759034d,
title = "Size distribution of aluminum hydroxide flocs in dilute aluminum(III) solutions",
abstract = "Electronic particle counting and sizing technique was used in this study to characterize the particle size distribution of Al(OH)3(S) precipitates that are produced from AlCl3, Al2(SO4)3 and two preformed polymeric aluminum salts (polyaluminum chloride and polyaluminum sulfate) solutions. Results indicate that polyaluminum chloride solutions tend to form a large number of small particles with a relative dense structure. On the other hand, alum and polyaluminum sulfate form large particles with a loose structure and which dominate the particle volume distribution. The repulsive electrostatic barrier between primary particles is suggested to be the main factor affecting the particle growth for different Al salt solutions.",
author = "Yun-Hwei Shen",
year = "1999",
month = "1",
day = "1",
doi = "10.1080/02772249909358717",
language = "English",
volume = "69",
pages = "363--371",
journal = "Toxicological and Environmental Chemistry",
issn = "0277-2248",
publisher = "Taylor and Francis Ltd.",
number = "3-4",

}

Size distribution of aluminum hydroxide flocs in dilute aluminum(III) solutions. / Shen, Yun-Hwei.

In: Toxicological and Environmental Chemistry, Vol. 69, No. 3-4, 01.01.1999, p. 363-371.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Size distribution of aluminum hydroxide flocs in dilute aluminum(III) solutions

AU - Shen, Yun-Hwei

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Electronic particle counting and sizing technique was used in this study to characterize the particle size distribution of Al(OH)3(S) precipitates that are produced from AlCl3, Al2(SO4)3 and two preformed polymeric aluminum salts (polyaluminum chloride and polyaluminum sulfate) solutions. Results indicate that polyaluminum chloride solutions tend to form a large number of small particles with a relative dense structure. On the other hand, alum and polyaluminum sulfate form large particles with a loose structure and which dominate the particle volume distribution. The repulsive electrostatic barrier between primary particles is suggested to be the main factor affecting the particle growth for different Al salt solutions.

AB - Electronic particle counting and sizing technique was used in this study to characterize the particle size distribution of Al(OH)3(S) precipitates that are produced from AlCl3, Al2(SO4)3 and two preformed polymeric aluminum salts (polyaluminum chloride and polyaluminum sulfate) solutions. Results indicate that polyaluminum chloride solutions tend to form a large number of small particles with a relative dense structure. On the other hand, alum and polyaluminum sulfate form large particles with a loose structure and which dominate the particle volume distribution. The repulsive electrostatic barrier between primary particles is suggested to be the main factor affecting the particle growth for different Al salt solutions.

UR - http://www.scopus.com/inward/record.url?scp=33745286848&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33745286848&partnerID=8YFLogxK

U2 - 10.1080/02772249909358717

DO - 10.1080/02772249909358717

M3 - Article

VL - 69

SP - 363

EP - 371

JO - Toxicological and Environmental Chemistry

JF - Toxicological and Environmental Chemistry

SN - 0277-2248

IS - 3-4

ER -