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Field Treatability Study Report for Enhanced Biosparging System Using PHOSter~(TM) Technology

机译:使用Phoster〜(TM)技术增强的生物散本系统的现场处理研究报告

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In June 2006, a trailer-mounted biosparging system with nutrient-enhancement capabilities was mobilized to MacDill Air Force Base (MAFB), Florida and staged at Solid Waste Management Unit (SWMU) 24 (Former Energy Management Test Laboratory [EMTL]) to complete a field treatability study. Specific objectives for the study included: evaluation of traditional biosparging (I.e., without nutrient enhancement) to convert groundwater from the existing reductive state to a more oxidative state; determination of the effective radius of influence (ROI) for the biosparging injection points; determination of sustainable injection flow rates; evaluation of geochemical parameters over time; evaluation of the reduction of groundwater COC concentrations over time; and determination of microbial enumerations prior to and upon completion of the treatability study. The following results were determined by this study: injection flow rates were successfully maintained between 8 and 9 standard cubic feet per minute (scfm); an effective ROI of at least 15 feet was achieved; field and geochemical parameters indicated biosparging was successful at converting the highly reductive (methanogenic) conditions of groundwater at the site to more oxidative conditions; laboratory analysis revealed a significant reduction in the concentration of groundwater COCs; and an increase in total biomass and a shift in community structure occurred in response to biosparging activities.
机译:2006年6月,营养增强能力的拖车的生物散扫系统被动员到麦克风空气基地(MAFB),佛罗里达州,并在固体废物管理单元(SWMU)24(以前的能源管理测试实验室[EMTL])完成现场处理研究。该研究的具体目标包括:对传统生物散扫描的评估(即,没有营养增强)将地下水从现有的还原状态转换为更氧化状态;测定生物散本注射点的有效影响半径(ROI);测定可持续注射流速;随着时间的推移评估地球化学参数;评估随着时间的推移降低地下水COC浓度;和完成处理研究之前及时的微生物枚举的测定。通过该研究确定以下结果:注射流量成功维持在8至9立方英尺/分钟(SCFM)之间;实现了至少15英尺的有效投资回报率;田地和地球化学参数表明生物扫描成功地将现场的地下水的高度还原(甲状腺原)条件转化为更氧化条件;实验室分析显示地下水COC浓度显着降低;并且,总生物质的增加和群落结构的转变是响应生物散本活动而发生的。

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