DESCRIPTION OF TECHNOLOGIES REVIEWED

ERDC TN-DOER-T2

December 2000

Particular physical and/or chemical characteristics of dredged sediments that signifi-

cantly impact costs

The speakers were also requested to address the following factors where applicable, particularly for

those technologies that have not been demonstrated on dredged sediments on a large scale:

Current state of technology development and time required for commercialization

Factors affecting technology performance when applied to dredged sediments

Estimates of performance for application of the technology to dredged sediment

remediation

Factors affecting economics of the technology

Estimates of the capital and operating costs for the technology for ranges of project sizes

Examples of application of the technology to dredging projects or remediation of contam-

inated sediments

Unknowns or potential problems associated with applications of the technology to

dredged sediments

Health, safety, and environmental risks or related areas of concern associated with appli-

cation of the technology to dredged sediments

At the conclusion of the presentations, the technical review panel and the audience were invited to

ask questions and provide comments. The review panel then provided a brief comparative analysis

of each technology as a means of clarifying the information presented and stimulating further

discussion between the presenters and the audience. After completion of the comparative analysis,

the technology presenters and the review panel led an open discussion on barriers to implementation

of the technologies on dredged sediments. Barriers from the perspective of both the technology

development firms and potential users were identified. Possible solutions or ways to reduce or

overcome the barriers were also discussed.

DESCRIPTION OF TECHNOLOGIES REVIEWED: The technologies reviewed are

categorized under two groups. The first category of technologies consists of those that achieve

significant contaminant destruction using thermal processes including the following:

Blended cement

Building bricks

Glass aggregate

Lightweight aggregate

The second category of technologies comprises those that use primarily contaminant containment or

partial contaminant removal processes including the following:

Flowable fill