Investigating the kinetic nature of natural oxidant demand during ISCO

K. G. Mumford; N. R. Thomson; R. M. Allen-King

Investigating the kinetic nature of natural oxidant demand during ISCO

K. G. Mumford
, N. R. Thomson
, R. M. Allen-King

Earth Sciences

University of Waterloo

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

7 Scopus citations

Abstract

Excess permanganate requirements have been observed during field applications of in situ chemical oxidation (ISCO) using permanganate ion (MnO₄^-). A portion of this excess has been attributed to consumption by reduced species in the surrounding aquifer material, commonly referred to as Natural Oxidant Demand (NOD). Batch and column experiments were conducted to evaluate the kinetics of the NOD reactions in a sandy aquifer material. Batch tests showed a maximum possible NOD of greater than 0.8 g KMnO₄/kg of aquifer material that was not reached after a 4 week time period. Column tests showed that significant breakthrough of aqueous KMnO ₄ occurred after an average NOD of only 0.34 g/kg was reached. This result was attributed to a slow NOD reaction. The identification of possible slow NOD kinetics affects the application strategy during ISCO and impacts the approach used in bench scale testing.

Original language	English
Title of host publication	Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Editors	A.R. Gavaskar, A.S.C. Chen
Pages	1383-1388
Number of pages	6
State	Published - 2002
Event	Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds - Monterey, CA., United States Duration: May 20 2002 → May 23 2002

Publication series

Name	Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds

Conference

Conference	Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds
Country/Territory	United States
City	Monterey, CA.
Period	05/20/02 → 05/23/02

Cite this

Mumford, K. G., Thomson, N. R., & Allen-King, R. M. (2002). Investigating the kinetic nature of natural oxidant demand during ISCO. In A. R. Gavaskar, & A. S. C. Chen (Eds.), Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds (pp. 1383-1388). (Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds).

Mumford, K. G. ; Thomson, N. R. ; Allen-King, R. M. / Investigating the kinetic nature of natural oxidant demand during ISCO. Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds. editor / A.R. Gavaskar ; A.S.C. Chen. 2002. pp. 1383-1388 (Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds).

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title = "Investigating the kinetic nature of natural oxidant demand during ISCO",

abstract = "Excess permanganate requirements have been observed during field applications of in situ chemical oxidation (ISCO) using permanganate ion (MnO4-). A portion of this excess has been attributed to consumption by reduced species in the surrounding aquifer material, commonly referred to as Natural Oxidant Demand (NOD). Batch and column experiments were conducted to evaluate the kinetics of the NOD reactions in a sandy aquifer material. Batch tests showed a maximum possible NOD of greater than 0.8 g KMnO4/kg of aquifer material that was not reached after a 4 week time period. Column tests showed that significant breakthrough of aqueous KMnO 4 occurred after an average NOD of only 0.34 g/kg was reached. This result was attributed to a slow NOD reaction. The identification of possible slow NOD kinetics affects the application strategy during ISCO and impacts the approach used in bench scale testing.",

author = "Mumford, \{K. G.\} and Thomson, \{N. R.\} and Allen-King, \{R. M.\}",

year = "2002",

language = "English",

isbn = "1574771329",

series = "Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds",

pages = "1383--1388",

editor = "A.R. Gavaskar and A.S.C. Chen",

booktitle = "Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds",

note = "Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds ; Conference date: 20-05-2002 Through 23-05-2002",

}

Mumford, KG, Thomson, NR & Allen-King, RM 2002, Investigating the kinetic nature of natural oxidant demand during ISCO. in AR Gavaskar & ASC Chen (eds), Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds. Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds, pp. 1383-1388, Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Monterey, CA., United States, 05/20/02.

Investigating the kinetic nature of natural oxidant demand during ISCO. / Mumford, K. G.; Thomson, N. R.; Allen-King, R. M.
Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds. ed. / A.R. Gavaskar; A.S.C. Chen. 2002. p. 1383-1388 (Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Investigating the kinetic nature of natural oxidant demand during ISCO

AU - Mumford, K. G.

AU - Thomson, N. R.

AU - Allen-King, R. M.

PY - 2002

Y1 - 2002

N2 - Excess permanganate requirements have been observed during field applications of in situ chemical oxidation (ISCO) using permanganate ion (MnO4-). A portion of this excess has been attributed to consumption by reduced species in the surrounding aquifer material, commonly referred to as Natural Oxidant Demand (NOD). Batch and column experiments were conducted to evaluate the kinetics of the NOD reactions in a sandy aquifer material. Batch tests showed a maximum possible NOD of greater than 0.8 g KMnO4/kg of aquifer material that was not reached after a 4 week time period. Column tests showed that significant breakthrough of aqueous KMnO 4 occurred after an average NOD of only 0.34 g/kg was reached. This result was attributed to a slow NOD reaction. The identification of possible slow NOD kinetics affects the application strategy during ISCO and impacts the approach used in bench scale testing.

AB - Excess permanganate requirements have been observed during field applications of in situ chemical oxidation (ISCO) using permanganate ion (MnO4-). A portion of this excess has been attributed to consumption by reduced species in the surrounding aquifer material, commonly referred to as Natural Oxidant Demand (NOD). Batch and column experiments were conducted to evaluate the kinetics of the NOD reactions in a sandy aquifer material. Batch tests showed a maximum possible NOD of greater than 0.8 g KMnO4/kg of aquifer material that was not reached after a 4 week time period. Column tests showed that significant breakthrough of aqueous KMnO 4 occurred after an average NOD of only 0.34 g/kg was reached. This result was attributed to a slow NOD reaction. The identification of possible slow NOD kinetics affects the application strategy during ISCO and impacts the approach used in bench scale testing.

UR - https://www.scopus.com/pages/publications/2342445221

M3 - Conference contribution

AN - SCOPUS:2342445221

SN - 1574771329

T3 - Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds

SP - 1383

EP - 1388

BT - Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds

A2 - Gavaskar, A.R.

A2 - Chen, A.S.C.

T2 - Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds

Y2 - 20 May 2002 through 23 May 2002

ER -

Mumford KG, Thomson NR, Allen-King RM. Investigating the kinetic nature of natural oxidant demand during ISCO. In Gavaskar AR, Chen ASC, editors, Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds. 2002. p. 1383-1388. (Proceedings of the Third International Conference on Remediation of Chlorinated and Recalcitrant Compounds).

Investigating the kinetic nature of natural oxidant demand during ISCO

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