Novel Photocatalytic Method for Site Remediation

描述（由申请人提供）：国家一直需要减少公众对危险废物的接触。新的补救技术可以提供一种有效的方法，以减少这种危险废物的接触。虽然健康问题需要迅速清理废弃和不受控制的危险废物场地，但高昂的补救费用往往会延误项目。在今后几十年中，估计每年对这些地点进行补救的费用达数十亿美元。 当务之急是开发更具成本效益的技术，以减少这些危险废物场地补救的社会成本。 拟议的研究计划的目标是证明一种新的修复技术的技术可行性，使用新的光催化剂，旨在破坏危险废物污染物。这种新的光催化技术将与现有的技术一起使用，这些技术在地下水和土壤修复方面是有效的，但否则会导致有害的空气排放。有证据表明，与现有技术相比，这一技术可将补救费用降低一个数量级。该研究计划包括开发新型光催化剂和吸附-集成-反应（AIR）技术的反应器系统，提供破坏挥发性有机化合物的光催化剂，并表现出高活性和长使用寿命。 KSE公司已经开发了比常规二氧化钛光催化剂活性高几个数量级的光催化剂。新催化剂的选择性也更高，更耐失活。该研究计划将包括新催化剂组合物的合成，挥发性有机化合物的代表性类别的动力学研究，以及建立概念可行性的设计和经济研究。预计将开发有效的补救技术，为危险废物场地补救提供具有成本效益的工具。

DESCRIPTION (provided by applicant): The nation has an ongoing need to reduce exposure of the public to hazardous wastes. Novel remediation technologies can provide an effective method to reduce such hazardous waste exposure. Although health issues require prompt cleanup of abandoned and uncontrolled hazardous waste sites, the high cost of remediation often delays the project. The cost of remediation of such sites is estimated at billions of dollars annually over the next several decades. It is imperative that more cost-effective technologies be developed to reduce the societal cost of remediation of these hazardous waste sites. The goal of the proposed research program is to demonstrate the technical feasibility of a new remediation technology, using novel photocatalysts designed to destroy the hazardous waste contaminants. This new photocatalytic technology would be employed with existing technologies which are effective at groundwater and soil remediation, but which otherwise would result in hazardous air emissions. Evidence suggests that this technology can reduce remediation costs by an order of magnitude over those of current technology. The research plan includes development of novel photocatalysts and reactor systems for an Adsorption-Integrated-Reaction (AIR) technology, providing photocatalysts which destroy volatile organic compounds and which exhibit high activity and long operating lifetimes. KSE, Inc. has developed photocatalysts which are orders of magnitude more active than conventional titania photocatalysts. The new catalysts are also more selective and more resistant to deactivation. The research program will consist of synthesis of new catalyst compositions, kinetic studies on representative classes of volatile organic compounds, and design and economic studies which establish the feasibility of the concept. It is anticipated that an effective remediation technology will be developed, providing a cost-effective tool for hazardous waste site remediation.