Active capping demonstration project in anacostia DC

Danny Reible, W. David, Keegan Roberts, Yuewei Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Innovative active capping techniques offering both containment and treatment are effective, low-cost means of managing the sediments that endanger the health of our nation's waterways. This project seeks to advance the implementation and acceptance of these under-utilized technologies by validating their efficacy at the Anacostia River where historic industrial, municipal, and military activities have resulted in toxic levels of PAHs, PCBs, metals, and other contaminants. Objectives are to demonstrate, on a field scale, the ability to design, construct and place caps that will provide long-term treatment of sediment contaminants while simultaneously providing containment. Cap materials under consideration included Aquablok, a commercial product designed to reduce the permeability at the sediment-water interface, zero-valent iron and Bion soil, which encourage reductive dechlorination conditions, apatite, designed to sorb or bind metals and coke breeze and an organo modified clay, both capable of absorbing hydrophobic organic contaminants. After treatability testing, Aquablok, apatite and coke breeze have been selected for placement in the demonstration which will occur in fall 2003. Evaluation of post-placement effectiveness is expected to take place through 2005. A summary of activities and results to-date will be presented.

Original languageEnglish
Title of host publicationRemediation of Contaminated Sediments - 2003
Subtitle of host publicationProceedings of the Second International Conference on Remediation of Contaminated Sediments
EditorsM. Pellei, A. Porta
Pages925-931
Number of pages7
StatePublished - 2004
EventSecond International Conference on Remediation of Contaminated Sediments - 2003 - Venice, Italy
Duration: Sep 30 2003Oct 3 2003

Publication series

NameRemediation of Contaminated Sediments - 2003: Proceedings of the Second International Conference on Remediation of Contaminated Sediments

Conference

ConferenceSecond International Conference on Remediation of Contaminated Sediments - 2003
CountryItaly
CityVenice
Period09/30/0310/3/03

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  • Cite this

    Reible, D., David, W., Roberts, K., & Zhu, Y. (2004). Active capping demonstration project in anacostia DC. In M. Pellei, & A. Porta (Eds.), Remediation of Contaminated Sediments - 2003: Proceedings of the Second International Conference on Remediation of Contaminated Sediments (pp. 925-931). (Remediation of Contaminated Sediments - 2003: Proceedings of the Second International Conference on Remediation of Contaminated Sediments).