...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of water supply >Dissolved air flotation separation for pretreatment of membrane bioreactor in domestic wastewater treatment
【24h】

Dissolved air flotation separation for pretreatment of membrane bioreactor in domestic wastewater treatment

机译：溶解气浮法分离处理生活污水中的膜生物反应器

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

Due to requiring higher water quality standards over time, new technologies are being employed for wastewater treatment. Dissolved air flotation (DAF) and membrane bioreactor (MBR) technologies are widely employed as new technologies in wastewater treatment. DAF is used due to its excellent separation capability of suspended solids as well as oily material. MBR is used because it may provide a high level of mixed liquor suspended solids in a biological system and excellent separation capability too. In the investigation, separation by DAF, without addition of coagulant, could remove chemical oxygen demand by potassium dicromate (COD_(cr)) up to over 70%, biochemical oxygen demand (BOD_5) 73%, suspended solids (SS) 83%, total nitrogen (T-N) 55%, and total phosphorus (T-P) 65% in influent of municipal wastewater. Average overall removal rates of water quality parameters by the DAF-MBR system were very high such as COD_(cr) 95.9%, BOD_5 99.7%, chemical oxygen demand by potassium permanganate) 93.6%, T-N 69.8%, NH_4-N 98.5%, T-P 78.2%, and SS 99.5%, which satisfy effluent water quality standards. Membrane separation in the MBR system produced a very low SS concentration of 1.27 mg/ℓ in the final effluent. It was proven that DAF separation is an excellent technology for pretreatment of wastewater treatment, especially for an MBR system.
机译：由于随着时间的推移要求更高的水质标准，因此采用了新技术来处理废水。溶解气浮法（DAF）和膜生物反应器（MBR）技术被广泛用作废水处理的新技术。使用DAF的原因在于它具有出色的悬浮固体和油性物质分离能力。使用MBR是因为它可以在生物系统中提供高含量的混合液悬浮固体，并且也具有出色的分离能力。在调查中，不添加凝结剂的DAF分离可去除重铬酸钾（COD_（cr））高达70％以上的化学需氧量，生化需氧量（BOD_5）的73％，悬浮固体（SS）的83％，总氮（TN）为55％，总磷（TP）为65％。 DAF-MBR系统对水质参数的平均总体去除率非常高，例如COD_（cr）95.9％，BOD_5 99.7％，高锰酸钾对化学需氧量的93.6％，TN 69.8％，NH_4-N 98.5％， TP 78.2％和SS 99.5％，满足污水水质标准。 MBR系统中的膜分离在最终流出物中产生了非常低的SS浓度，为1.27 mg / l。事实证明，DAF分离是一种用于废水预处理的出色技术，特别是对于MBR系统而言。

著录项

  • 来源
    《Journal of water supply》 |2015年第2期|186-193|共8页
  • 作者

    Youngsuk Kim; Donghwan Choi; Meiying Cui; Jeonyoul Lee; Bunsu Kim; Kyungho Park; Hyungmok Jung; Byoungho Lee;

  • 作者单位

    Civil and Environmental Engineering, University of Ulsan, ulsan City, 680-749 Korea,National Institute of Environmental Research, Environmental Infrastructure Department Drinking Water and Sewerage Research Division, Seoul, Korea;

    Civil and Environmental Engineering, University of Ulsan, ulsan City, 680-749 Korea;

    Civil and Environmental Engineering, University of Ulsan, ulsan City, 680-749 Korea;

    Civil and Environmental Engineering, University of Ulsan, ulsan City, 680-749 Korea;

    Civil and Environmental Engineering, University of Ulsan, ulsan City, 680-749 Korea;

    Civil and Environmental Engineering, University of Ulsan, ulsan City, 680-749 Korea;

    Samsung C & T. Civil Work Dept, Hamyang-Sungsan Expressway Section 6, 680-701 Korea;

    Civil and Environmental Engineering, University of Ulsan, ulsan City, 680-749 Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    DAF; MBR; membrane fouling; pretreatment; wastewater;

    机译：达夫MBR;膜结垢预处理废水;

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