...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Biodegradation of Tributyl Phosphate by Naturally Occurring Microbial Isolates and Coupling to the Removal of Uranium from Aqueous Solution
【24h】

Biodegradation of Tributyl Phosphate by Naturally Occurring Microbial Isolates and Coupling to the Removal of Uranium from Aqueous Solution

机译：自然存在的微生物分离物与耦合的水溶液中铀的去除对磷酸三丁酯的生物降解

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

Tributyl phosphate (TBP) is widely used as a solvent and plasticizer with a special use as a solvent for the extraction of uranium and plutonium from other radionuclides in nuclear fuel reprocessing. Although the biodegradation of alkyl phosphates by microorganisms has been noted in the literature, biodegradation of TBP is little-documented. The proposed products of the degradation are potentially useful; the liberated 1-butanol as a biomass growth substrate and the co-released inorganic phosphate moiety as a ligand that can precipitate with heavy metals to retain these as biominerals on the biomass. Microorganisms growing on TBP were isolated from industrially contaminated sites and from laboratory enrichment cultures. A mixed culture, containing Pseudomonas spp., supported the deposition of heavy metal (uranyl) phosphate and the removal of the latter from solution (biodecontamination). This general biocatalytic approach has been reported previously; these new isolates show potential for the simultaneous treatment of two classes of waste: the breakdown of one waste (TBP) could be harnessed to the treatment of another class of waste (heavy metals) This approach would represent a considerable advance over established bioprocesses for metal removal, where the cost of the addition of exogenous organophosphate substrate (phosphate donor for the metal precipitation reaction) may ultimately limit their use.
机译：磷酸三丁酯（TBP）被广泛用作溶剂和增塑剂，特别用作溶剂，用于从核燃料后处理中的其他放射性核素中提取铀和p。尽管在文献中已经注意到微生物对磷酸烷基酯的生物降解作用，但是TBP的生物降解作用却鲜有记载。建议的降解产物可能有用。释放的1-丁醇作为生物质的生长底物，共释放的无机磷酸盐部分作为配体，可以与重金属沉淀，将其作为生物矿物保留在生物质上。从工业污染地点和实验室浓缩培养物中分离出在TBP上生长的微生物。含有假单胞菌属物种的混合培养物支持重金属（铀酰）磷酸盐的沉积和从溶液中的去除（生物净化）。这种一般的生物催化方法已有报道。这些新的分离物显示出可以同时处理两类废物的潜力：一种废物的分解（TBP）可以用于处理另一类废物（重金属），这种方法将代表已建立的金属生物过程的重大进步去除，其中添加外源有机磷酸盐底物（用于金属沉淀反应的磷酸盐供体）的成本可能最终限制其使用。

著录项

  • 来源
    《Environmental Science & Technology》 |1996年第7期|p.2371-2375|共5页
  • 作者

    RUSSELL A. P. THOMAS; L. E. MACASKIE;

  • 作者单位

    School of Biological Sciences, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境化学;
  • 关键词

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