Correlation between Biomarker Concentrations and Hydrocarbon Biodegradation Rates to Enhance the Selection and Performance Assessment of Bioremediation and Natural Attenuation

摘要CBET-0729700佩德罗·阿尔瓦雷斯水稻大学生物标记物浓度与碳氢化合物生物降解率的相关性加强生物修复和自然衰减的选择和性能评估这个为期两年的探索性项目将检验厌氧条件下碳氢化合物降解的遗传生物标记物。该项目将测试各种遗传生物标记物的可靠性，以定量查询芳香烃(苯、甲苯、二甲苯(BTX))特定降解物的存在，并利用这些信息估计受污染地下水环境中的降解率及其空间变异性。这项拟议的研究针对的是一种非常有问题的污染物--苯，它推动了许多地点的补救成本和决策。遗传标记与一级降解率的相关性可以为项目管理提供一个强有力的工具--一种评估受污染含水层中重要芳香烃污染物自然衰减潜力的更快、更便宜的方法。

ABSTRACT CBET-0729700Pedro AlvarezRice UniversityCorrelation between Biomarker Concentrations and HydrocarbonBiodegradation Rates to Enhance the Selection and PerformanceAssessment of Bioremediation and Natural AttenuationThis two-year exploratory project will examine genetic biomarkers for hydrocarbon degradation under anaerobic conditions. The project will test the reliability of various genetic biomarkers to quantitatively query for the presence of specific degraders of aromatic hydrocarbons (benzene, toluene, xylene (BTX)), and use this information to estimate degradation rates and their spatial variability in contaminated ground-water environments. The proposed research addresses a very problematic pollutant, benzene, which drives remediation costs and decisions at many sites. The correlation of genetic markers with first-order degradation rates could yield a powerful tool for project management?a faster and less expensive method to assess the potential for natural attenuation of important aromatic hydrocarbon pollutants in contaminated aquifers.