...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ecotoxicology and Environmental Safety >Intestinal bacteria in bioaerosols and factors affecting their survival in two oxidation ditch process municipal wastewater treatment plants located in different regions
【24h】

Intestinal bacteria in bioaerosols and factors affecting their survival in two oxidation ditch process municipal wastewater treatment plants located in different regions

机译：位于不同地区的两个氧化沟工艺市政污水处理厂中生物气溶胶中的肠道细菌及其影响因素

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

Samples from two oxidation ditch process municipal wastewater treatment plants (MWTPs) (HJK and GXQ) in two regions of China were analysed for bacteria, particles, total organic carbon, and water-soluble ions in bioaerosols. Diversity and potential pathogen populations were evaluated by high-throughput sequencing. Bioaerosol sources, factors affecting intestinal bacterial survival, and the relationship between bioaerosols and water were analysed by Source tracker and partial least squares-discriminant, principal component, and canonical correspondence analyses. Culturable bacteria concentrations were 110-846 and 27-579 CFU/m(3) at HJK and GXQ, respectively. Intestinal bacteria constituted 6-33% of bacteria. Biochemical reaction tank, sludge dewatering house (SDH), and fine screen samples showed the greatest contribution to bioaerosol contamination. Enterobacter aerogenes was the main intestinal bacteria ( 99.5%) in HJK and detected at each sampling site. Enterobacter aerogenes (98.67% in SDH), Aeromonas sp. (76.3% in biochemical reaction tank), and Acinetobacter baumannii (99.89% in fine screens) were the main intestinal bacteria in GXQ. Total suspended particulate masses in SDH were 229.46 and 141.6 mu g/m(3) in HJK and GXQ, respectively. Percentages of insoluble compounds in total suspended particulates decreased as height increased. The main soluble ions in bioaerosols were Ca2+, Na2+, Cl- and SO42-, which ranged from 3.8 to 27.55 mu g/m(3) in the MWTPs. Water was a main source of intestinal bacteria in bioaerosols from the MWTPs. Bioaerosols in HJK but not in GXQ were closely related. Relative humidity and some ions positively influenced intestinal bacteria in bioaerosols, while wind speed and solar illumination had a negative influence.
机译：分析了来自中国两个地区的两个氧化沟工艺市政废水处理厂（HTP和GXQ）的样品中的细菌，颗粒，总有机碳和生物气溶胶中的水溶性离子。通过高通量测序评估多样性和潜在病原体种群。通过Source Tracker以及偏最小二乘判别式，主成分和规范对应分析，分析了生物气溶胶的来源，影响肠道细菌存活的因素以及生物气溶胶与水之间的关系。 HJK和GXQ的可培养细菌浓度分别为110-846和27-579 CFU / m（3）。肠细菌占细菌的6-33％。生化反应池，污泥脱水室（SDH）和细筛样品显示出对生物气溶胶污染的最大贡献。产气肠杆菌是HJK中主要的肠道细菌（> 99.5％），并在每个采样点检测到。产气肠杆菌（SDH中为98.67％），Aeromonas sp.。 （在生化反应池中占76.3％）和鲍曼不动杆菌（在精细筛选中占99.89％）是GXQ中的主要肠道细菌。在HJK和GXQ中，SDH中的总悬浮颗粒质量分别为229.46和141.6μg / m（3）。随着高度增加，总悬浮颗粒中不溶性化合物的百分比降低。生物气溶胶中的主要可溶性离子为Ca2 +，Na2 +，Cl-和SO42-，在MWTP中范围为3.8至27.55μg / m（3）。水是来自MWTP的生物气溶胶中肠道细菌的主要来源。 HJK中的生物气溶胶与GXQ中的生物气溶胶没有密切关系。相对湿度和某些离子对生物气溶胶中的肠道细菌产生积极影响，而风速和太阳光照则具有负面影响。

著录项

  • 来源
    《Ecotoxicology and Environmental Safety》 |2018年第6期|162-170|共9页
  • 作者

    Wang Yanjie; Lia Lin; Han Yunping; Liu Junxin; Yang Kaixiong;

  • 作者单位

    Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China;

    Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China;

    Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China;

    Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China;

    Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);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
  • 关键词

    MWTP; Bioaerosols; Intestinal bacteria; Chemicals; Total suspended particulates; Soluble ions;

    机译：MWTP;生物气溶胶;肠道细菌;化学药品;总悬浮颗粒物;可溶性离子;

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