In-Situ Sediment Remediation Using Benthic Waterjet Amendment Placement

描述（由申请人提供）： 这项研究奋进的广泛目标是开发原位沉积物修复修正物的放置方法。修正案将不会被开发，但研究的重点是开发水射流设计和参数，以提供修正案，已被证明在实验室规模。本文开发的水射流设计和参数将特别导致修正物放置的效率和精度，这将允许有效使用新开发的修正物，这是昂贵的，并且可能促进对其他修正物的研究，尽管这些修正物太昂贵或无法交付。水射流放置方法已经显示出具有较低的再悬浮和对底栖生物群落的有害影响，一个具体的目标是进一步开发方法，设计和程序，以尽量减少这些污染。该项目将为扩大规模和过渡到实地规模的测试和实施提供直接投入，设计和规划阶段将在本项目时间表内开始。基本原理：污染沉积物的修复是目前没有有效的有限的选择，基础科学发展目前有一个重点补救修正案，但没有交付和放置方法存在有效的工程利用这些修正案。水射流处理可用于一系列针对几乎所有常见沉积物污染物的改良，特别是多氯联苯、多环芳烃和氧化还原敏感金属。研究设计：研究设计将侧重于优化设计和操作参数，以逐步升级的规模，以满足上述目标，并将导致在项目期间的现场准备技术。该团队在将基础科学发现扩大到非常大的实地规模项目和技术开发甚至利用方面拥有丰富的经验。这一系列的经验和专业知识是独一无二的，肯定会有助于在这项研究奋进中取得成功的可能性很大。

DESCRIPTION (provided by applicant): This research endeavor has the broad goal to develop placement methods for in-situ sediment remediation amendments. Amendments will not be developed, but research is focused upon developing the water jet design and parameters to deliver amendments that have been proven at a bench-scale. Waterjet design and parameters developed herein will specifically result in efficiency and precision in amendment placement that will allow for efficient use of newly developed amendments, which are expensive, and likely foster the research into other amendments that were though to be too expensive or undeliverable. Waterjets placement methods are already shown to have lower resuspension and harmful impact to the benthic community, and a specific objective is to further develop methods, designs and procedures to minimize these detriments even further. This project will provide direct input for scale-up and transition to field-scale testing and implementation, with design and planning stages starting within this project schedule. RATIONALE: Remediation of contaminated sediments is not currently efficient with limited options, and the basic science developing currently has a focus upon remedial amendments, yet no deliver and placement method exists for efficient engineering utilization of these amendments. Waterjet placement can be applied for a suite of amendments targeting nearly all common sediment contaminants, specifically PCBs, PAHs and redox sensitive metals. RESEARCH DESIGN: Research design is will focus on optimizing design and operational parameters at escalating scales to meet the goal listed above and will result in a field-ready technology within the project period. The assembled team has extensive experience in scale-up of basic science discovery to very large, field-scale projects and technology development and even utilization. This range of experiences and expertise is unique and will certainly help in making success in this research endeavor highly likely.