Effects of Nonreversibility, Particle Concentration, and Ionic Strength on Heavy Metal Sorption

Dominic M. Di Toro; John D. Mahony; Paul R. Kirchgraber; Ann L. O'Byrne; Louis R. Pasquale; Dora C. Piccirilli

doi:10.1021/es00143a006

Effects of Nonreversibility, Particle Concentration, and Ionic Strength on Heavy Metal Sorption

Dominic M. Di Toro
, John D. Mahony
, Paul R. Kirchgraber
, Ann L. O'Byrne
, Louis R. Pasquale
, Dora C. Piccirilli

Research output: Contribution to journal › Article › peer-review

165 Scopus citations

Abstract

The reversible component partition coefficient for nickel and cobalt sorbed to montmorillonite and quartz is shown to be a function of particle concentration. Resuspension and dilution experiments appear to exclude explanations that rely on nonseparated particles and/or complexing ligands associated with the particles. A particle interaction model is presented that assumes the existence of an additional desorption reaction that results from particle-particle interactions. The model is in conformity with the experimental results. The observed partition coefficient decrease with increasing ionic strength is a result of the decrease in the classical, low particle concentration limit, partition coefficient. The particle-particle interaction is independent of ionic strength.

Original language	English
Pages (from-to)	55-61
Number of pages	7
Journal	Environmental Science and Technology
Volume	20
Issue number	1
DOIs	https://doi.org/10.1021/es00143a006
State	Published - 1986
Externally published	Yes

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@article{c03571ecd03b44c4aba9d8dbca58f830,

title = "Effects of Nonreversibility, Particle Concentration, and Ionic Strength on Heavy Metal Sorption",

abstract = "The reversible component partition coefficient for nickel and cobalt sorbed to montmorillonite and quartz is shown to be a function of particle concentration. Resuspension and dilution experiments appear to exclude explanations that rely on nonseparated particles and/or complexing ligands associated with the particles. A particle interaction model is presented that assumes the existence of an additional desorption reaction that results from particle-particle interactions. The model is in conformity with the experimental results. The observed partition coefficient decrease with increasing ionic strength is a result of the decrease in the classical, low particle concentration limit, partition coefficient. The particle-particle interaction is independent of ionic strength.",

author = "\{Di Toro\}, \{Dominic M.\} and Mahony, \{John D.\} and Kirchgraber, \{Paul R.\} and O'Byrne, \{Ann L.\} and Pasquale, \{Louis R.\} and Piccirilli, \{Dora C.\}",

year = "1986",

doi = "10.1021/es00143a006",

language = "English",

volume = "20",

pages = "55--61",

journal = "Environmental Science and Technology",

issn = "0013-936X",

publisher = "American Chemical Society",

number = "1",

}

TY - JOUR

T1 - Effects of Nonreversibility, Particle Concentration, and Ionic Strength on Heavy Metal Sorption

AU - Di Toro, Dominic M.

AU - Mahony, John D.

AU - Kirchgraber, Paul R.

AU - O'Byrne, Ann L.

AU - Pasquale, Louis R.

AU - Piccirilli, Dora C.

PY - 1986

Y1 - 1986

N2 - The reversible component partition coefficient for nickel and cobalt sorbed to montmorillonite and quartz is shown to be a function of particle concentration. Resuspension and dilution experiments appear to exclude explanations that rely on nonseparated particles and/or complexing ligands associated with the particles. A particle interaction model is presented that assumes the existence of an additional desorption reaction that results from particle-particle interactions. The model is in conformity with the experimental results. The observed partition coefficient decrease with increasing ionic strength is a result of the decrease in the classical, low particle concentration limit, partition coefficient. The particle-particle interaction is independent of ionic strength.

AB - The reversible component partition coefficient for nickel and cobalt sorbed to montmorillonite and quartz is shown to be a function of particle concentration. Resuspension and dilution experiments appear to exclude explanations that rely on nonseparated particles and/or complexing ligands associated with the particles. A particle interaction model is presented that assumes the existence of an additional desorption reaction that results from particle-particle interactions. The model is in conformity with the experimental results. The observed partition coefficient decrease with increasing ionic strength is a result of the decrease in the classical, low particle concentration limit, partition coefficient. The particle-particle interaction is independent of ionic strength.

UR - https://www.scopus.com/pages/publications/0022642214

U2 - 10.1021/es00143a006

DO - 10.1021/es00143a006

M3 - Article

AN - SCOPUS:0022642214

SN - 0013-936X

VL - 20

SP - 55

EP - 61

JO - Environmental Science and Technology

JF - Environmental Science and Technology

IS - 1

ER -

Effects of Nonreversibility, Particle Concentration, and Ionic Strength on Heavy Metal Sorption

Abstract

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