THERMALLY ENHANCED SUBSURFACE REMEDIATION OF CONTAMINATION

热强化地下污染修复

• 批准号: 6271067
• 负责人: KENT S UDELL
• 金额: $ 21万
• 依托单位: UNIVERSITY OF CALIFORNIA BERKELEY
• 依托单位国家: 美国
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-04-01 至 1999-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6271067
• 关键词: biotransformation; detoxification; environmental contamination; environmental toxicology; environmental transport; field study; ground water; heat; metal poisoning; method development; microorganism population study; soil microbiology; soil pollution; solvent extraction; temperature; thermodynamics; vapor; video microscopy; waste disposal; waste treatment; water pollution

The long-term objective of this project is to reduce future human exposure to toxic chemicals through the development and application of thermal techniques for removing, immobilizing, or detoxifying contaminants found in a range of subsurface environments. The specific aims are: 1. investigate the range and effectiveness of application of steam enhanced extraction to remove volatile contaminants from highly heterogeneous soils and aquifer systems. 2. Examine the effects of temperature on the soil microbial populations and the potential for temperature-enhanced contaminant biodegradation and immobilization rates. 3. Determine the effectiveness of the co-injection of air, oxygen, or carbon dioxide with steam to enhance precipitation, immobilization, and mobilization rates of toxic metals in aqueous or non-aqueous phases. These aims will met by laboratory, theoretical, an numerical studies which complement other field projects focussed on demonstrations of innovative cleanup technologies at specific sites at Alameda Naval Air Station and elsewhere. Our goals are the generalization of laboratory and site- specific research finding, improvements in the design an operational strategy of thermally enhanced restoration processes, and technology transfer to the restoration industry.

该项目的长期目标是减少未来人类接触到的物质 通过开发和应用热能来消除有毒化学物质 去除、固定或解毒中的污染物的技术 一系列的地下环境。具体目标是： 1.调查蒸汽的应用范围和效果 强化提取以去除高纯度的挥发性污染物 非均质土壤和含水层系统。 2.研究温度对土壤微生物种群的影响 以及温度增强的污染物生物降解和 固定率。 3.确定联合注射空气、氧气或 二氧化碳和水蒸气，以加强沉淀、固定化和 有毒金属在水相或非水相中的动员速率。 这些目标将通过实验室、理论、数值研究来实现 补充侧重于创新示范的其他现场项目 阿拉米达海军航空站特定地点的清理技术 其他地方。我们的目标是实验室和现场的泛化- 具体研究发现，在设计和操作上的改进 热强化修复过程和技术的战略 向修复产业转移。