• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>水環境学会誌 >都市下水処理を行うMBRにおける膜ファウリング物質の起源
【24h】

都市下水処理を行うMBRにおける膜ファウリング物質の起源

机译：MBR处理市政污水处理中膜污染物质的来源

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

膜分離活性汚泥法（Membrane Bioreacotor;MBR）は，標準 活性汚泥法に代表される既存の下水処理システムと比較 して，高度な処理水質を安定して達成できること，設置面 積が小さいこと，自動化を含めた運転管理が容易であるこ と，細菌を全く含まない処理水が得られることといった利 点を有しており，今後より広範な利用が期待されている。%The origin of foulants that causes physically irreversible fouling in pilot-scale membrane bioreactors (MBRs) treating real municipal wastewater was investigated. Utilization-associated products (UAP), biomass-associated products (BAP), and organic matter contained in the raw wastewater could be considered as potential sources of foulants in MBRs. Organic matter contained in the raw wastewater and BAP were characterized to assess their contributions to the evolution of physically irreversible fouling. Fourier transform infrared (FTIR) analysis, fluorescence excitation-emission matrices (EEM), and monosaccharide/amino acid composition analysis were used to characterize the organic matter. The results revealed that the organic matter contained in the raw wastewater was minor among the foulants regardless of the SRT. The characteristics of the foulant of the MBR operated with a long SRT were relatively similar to those of BAP, while no obvious similarity was observed between the characteristics of BAP and that of the foulant in the MBR operated with a short SRT. It was suggested that the contribution of UAP to the physically irreversible fouling increases as the SRT is shortened. The foulant of the MBR operated with a short SRT exhibited a higher specific filtration resistance than that of the MBR operated with long SRT. UAP causes severe physically irreversible fouling and it is important to minimize the accumulation of UAP in the mixed liquor of MBRs.
机译：与以标准活性污泥法为代表的现有污水处理系统相比，膜分离活性污泥法（Membrane Bioreacotor; MBR）能够以稳定的方式获得高水平的处理水，安装面积小且自动化。它具有易于操作和管理的优点，并且可以得到不含细菌的处理水，并有望在将来得到更广泛的使用。研究了处理实际市政废水的中试规模膜生物反应器（MBR）中引起物理不可逆结垢的污垢来源，利用相关产品（UAP），生物质相关产品（BAP）和原废水中所含有机物可能被认为是MBRs中潜在的污垢来源，对原废水和BAP中所含的有机物进行了表征，以评估它们对物理不可逆污垢演变的贡献。傅里叶变换红外（FTIR）分析，荧光激发-发射矩阵（EEM）并通过单糖/氨基酸组成分析来表征有机物，结果表明，无论采用SRT技术，污泥中原废水中的有机物含量均很小.MBR污泥的特性是长时间运行SRT与BAP相对相似，而字符之间没有明显相似性在短SRT下运行的MBR的BAP和污垢的污染。建议随着SRT的缩短，UAP对物理不可逆结垢的贡献增加。在短SRT下运行的MBR的污垢进一步增加。 UAP会导致严重的物理不可逆结垢，因此，最大限度地减少UAP在MBR混合液中的积累非常重要。

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