• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Aerobiologia >Bioaerosol emission from wastewater treatment plants
【24h】

Bioaerosol emission from wastewater treatment plants

机译：废水处理厂的生物气溶胶排放

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

In this report we describe the results of a study conducted to better estimate airborne microorganisms present in wastewater treatment plants (WWTP) environments. Air samples were taken with the Air Sampler MAS 100 impactor (Merck) at each stage of an activated-sludge WWTP (pre-treatment, primary clarifiers, aeration basins and sludge processors), in order to determine levels of contamination according to work stations. Culture methods were used to investigate heterotrophic plate count, moulds and yeasts, total and fecal coliforms, Pseudomonas aeruginosa and species belonging to Mycobacterium tuberculosis complex, whereas these last microorganisms were also analysed by Polymerase Chain Reaction (PCR) methods. Statistical analysis showed that pretreatment and primary clarifiers were the stages with the highest emission of bioaerosols, and that bioaerosol concentration at each stage depended on wind speed and daily inflow at the WWTP. Low concentrations of P. aeruginosa were found isolated at pretreatment and primary clarifiers; however, species of M. tuberculosis complex were not detected at any stage of the treatment plant.
机译：在本报告中，我们描述了一项研究结果，旨在更好地估算废水处理厂（WWTP）环境中存在的空气传播微生物。在活性污泥污水处理厂的每个阶段（预处理，一级澄清池，曝气池和污泥处理机）的每个阶段，均使用空气采样器MAS 100撞击器（Merck）采集空气样本，以便根据工作站确定污染水平。培养方法用于研究异养菌板数，霉菌和酵母菌，总和粪便大肠菌群，铜绿假单胞菌和结核分枝杆菌复合物的种类，而这些最后的微生物也通过聚合酶链反应（PCR）方法进行了分析。统计分析表明，预处理和主要澄清池是生物气溶胶排放量最高的阶段，每个阶段的生物气溶胶浓度取决于风速和污水处理厂的每日流入量。在预处理和初级澄清池中发现低浓度的铜绿假单胞菌；但是，在处理厂的任何阶段都未检测到结核分枝杆菌复合体的种类。

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