In Situ Treatment of Contaminated Sediments

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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

2002

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Table of Contents

PURPOSE . 1

BACKGROUND 1

Contaminants . 2

Remediation Techniques 2

DESCRIPTION OF IN SITU TREATMENT 3

Advantages 4

Disadvantages 4

IN SITU BIOLOGICAL/CHEMICAL TREATMENT . 7

TREATMENT PROJECTS - IN SITU BIOLOGICAL/CHEMICAL 7

Hamilton Harbor (Dofasco Boatslip), Canada 7

St. Mary’s River, Canada . 10

Salem, MA (Future Project) . 10

In Situ Hudson River Research Study . 11

Microencapsulation Study 14

Biological Carpet (Proposal) 14

IN SITU SOLIDIFICATION/STABILIZATION TREATMENT 15

TREATMENT PROJECTS - IN SITU SOLIDIFICATION/STABILIZATION . 15

In Situ Lead Fixation - Fox River, WI . 16

In Situ Solidification - Manitowoc River, WI . 18

Japanese Solidification Activities 19

U.S. Army Corps of Engineers Laboratory Study on Chemical Mobility After Solidification 20

Several Laboratory Studies on In Situ Metal Fixation . 20

PLANNED/ONGOING ACTIVITIES FOR IN SITU TREATMENT 21

CONCLUSIONS . 22

REFERENCES 25

APPENDIX - LIST OF CONTACTS FOR MAJOR IN SITU TREATMENTS 27

FIGURES AND TABLES INDEX . 28