• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Sixth International in Situ and On-Site Bioremediation Symposium, 6th, Jun 4-7, 2001, San Diego, California >CASE STUDY: SUCCESSFUL BIOTREATMENT OF PAH-CONTAMINATED SOIL
【24h】

CASE STUDY: SUCCESSFUL BIOTREATMENT OF PAH-CONTAMINATED SOIL

机译：案例研究：成功地对被PAH污染的土壤进行生物处理

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Soils contaminated with creosote and diesel fuels at the Benfield Industries Site in Waynesville, North Carolina were remediated using a modified biopile treatment technology. Soil was excavated, amended with straw and manure, and formed into windrow configurations in a land treatment unit (LTU). An excavator was used to lift, mix, aerate, and redistribute the soil in the windrows. Confirmatory sampling was performed for baseline conditions and then monthly to document the progress of biological treatment. Similarly, the LTU was sampled initially for baseline biological monitoring concentrations conditions, and then either weekly or monthly until treatment was complete. Soil was classified as successfully treated when analytical results demonstrated that remediation goals had been met or that biodegradation had ceased to reduce polycyclic aromatic hydrocarbon (PAH) levels. If PAHs were above the remediation goals, soils were sampled for Toxicity Characteristic Leaching Procedure (TCLP) analysis. Such soils were considered successfully treated if TCLP extract results contained contaminant concentrations that were at or below their respective groundwater remediation levels and North Carolina groundwater quality standards. The remediation goal for benzo(a)pyrene was not changed. Soil that failed to meet the benzo(a)pyrene target was buried by at least one foot of clean fill.
机译：使用改良的生物堆处理技术修复了北卡罗来纳州韦恩斯维尔的Benfield工业基地被杂酚油和柴油燃料污染的土壤。挖出土壤，用稻草和肥料进行改良，并在土地处理单元（LTU）中形成成堆垛状。挖掘机被用来提升，混合，充气和重新分布堆肥中的土壤。对基线条件进行确证采样，然后每月进行一次记录以记录生物治疗的进展。同样，最初对LTU进行采样以进行基线生物学监测浓度条件，然后每周或每月采样一次，直至治疗完成。当分析结果表明已达到修复目标或生物降解停止降低多环芳烃（PAH）含量时，将土壤分类为成功处理。如果PAHs高于修复目标，则对土壤取样进行毒性特征渗滤程序（TCLP）分析。如果TCLP提取物的污染物浓度等于或低于其各自的地下水修复水平和北卡罗来纳州地下水质量标准，则认为此类土壤已成功处理。苯并（a）py的修复目标未更改。未能达到苯并（a）target目标的土壤被至少一英尺的干净填埋物掩埋。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号