• 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 >EVALUATION OF IN SITU BIODEGRADATION OF PERCHLORATE IN A CONTAMINATED SITE
【24h】

EVALUATION OF IN SITU BIODEGRADATION OF PERCHLORATE IN A CONTAMINATED SITE

机译：污染场地中高氯酸盐原位生物降解的评估

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

Parameters affecting perchlorate biodegradation in the Las Vegas Wash area in Las Vegas, NV were investigated at field and laboratory. Two types of tests were performed in water samples from the Wash and the contaminated site, enumeration of perchlorate degrading bacteria and anaerobic microcosm testing. Microbial enumeration was performed by colony counts using standard plateing techniques. Microcosm testing was conducted in serum bottles using standard anaerobic procedures. A mineralutrient and buffer medium was supplemented to the testing bottles and lactate was used as the electron donor. The microbial count results show that perchlorate reducers are present along the Wash and in the contaminated area and numbers range from 30.x10~3 to 7.7x10~4 counts/mL. The microbial counts were higher in the zone where the Wash meets Lake Mead. No correlation was found between the concentration of perchlorate in the Wash and the number of microorganisms present. The results of the microcosm testing show that natural biodegradation of perchlorate in the Las Vegas site is limited by the lack of an electron donor, the presence of nitrate, and the salinity levels in the area.
机译：在野外和实验室研究了影响内华达州拉斯维加斯清洗区高氯酸盐生物降解的参数。在冲洗液和受污染地点的水样中进行了两种类型的测试，高氯酸盐降解细菌计数和厌氧性微观测试。使用标准平板技术通过菌落计数进行微生物计数。使用标准厌氧程序在血清瓶中进行微观测试。将矿物质/营养和缓冲介质添加到测试瓶中，并将乳酸用作电子供体。微生物计数结果表明，高氯酸盐还原剂存在于洗涤液中和受污染区域，其数量范围为30.x10〜3至7.7x10〜4个计数/ mL。洗涤液与米德湖相遇的区域中的微生物数量较高。在洗涤液中高氯酸盐的浓度与存在的微生物数量之间未发现相关性。微观测试的结果表明，拉斯维加斯场地中高氯酸盐的自然生物降解受到缺乏电子供体，硝酸盐的存在以及该地区盐度水平的限制。

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