• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Direct and Complete Phosphorus Recovery from Municipal Wastewater Using a Hybrid Microfiltration-Forward Osmosis Membrane Bioreactor Process with Seawater Brine as Draw Solution
【24h】

Direct and Complete Phosphorus Recovery from Municipal Wastewater Using a Hybrid Microfiltration-Forward Osmosis Membrane Bioreactor Process with Seawater Brine as Draw Solution

机译：利用混合微滤-正向渗透膜生物反应器工艺（以海水作为抽提液）直接和完全回收市政废水中的磷

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

We report a hybrid microfiltration-forward osmosis membrane bioreactor (MF-FOMBR) for direct phosphorus recovery from municipal wastewater in the course of its treatment. In the process, a forward osmosis (FO) membrane and a microfiltration (MF) membrane are operated in parallel in a bioreactor. FO membrane rejects the nutrients (e.g., PO_4~(3-), Ca~(2+), Mg~(2+), etc.) and results in their enrichment in the bioreactor. The nutrients are subsequently extracted via the MF membrane. Phosphorus is then recovered from the nutrients enriched MF permeate via precipitation without addition of an external source of calcium or magnesium. The use of seawater brine as a draw solution (DS) is another novel aspect of the system. The process achieved 90% removal of total organic carbon and 99% removal of NH_4~+-N. 97.9% of phosphate phosphorus (PO_4~(3-)-P) was rejected by the FO membrane and enriched within the bioreactor. ＞90% phosphorus recovery was achieved at pH 9.0. The precipitates were predominantly amorphous calcium phosphate with a phosphorus content of 11.1-13.3%. In principal, this process can recover almost all the phosphorus, apart from that assimilated by bacteria for growth. Global evaluation showed an overall phosphorus recovery of 71.7% over 98 days.
机译：我们报告了一种混合型微滤-正渗透膜生物反应器（MF-FOMBR），用于在处理过程中直接从市政废水中回收磷。在此过程中，正渗透（FO）膜和微滤（MF）膜在生物反应器中并行运行。 FO膜排斥营养物（例如PO_4〜（3-），Ca〜（2 +），Mg〜（2+）等）并导致其在生物反应器中的富集。随后通过MF膜提取养分。然后通过沉淀从富含营养物质的MF渗透物中回收磷，而无需添加钙或镁的外部来源。使用海水盐水作为汲取溶液（DS）是系统的另一个新颖方面。该工艺实现了90％的总有机碳去除率和99％的NH_4〜+ -N去除率。 FO膜排斥97.9％的磷磷（PO_4〜（3-）-P）并富集在生物反应器中。在pH 9.0时，磷回收率＞ 90％。沉淀物主要是无定形磷酸钙，磷含量为11.1-13.3％。原则上，除了细菌吸收的磷以外，该过程几乎可以回收所有磷。全球评估显示，在98天内磷的总回收率为71.7％。

著录项

  • 来源
    《Environmental Science & Technology》 |2015年第10期|6156-6163|共8页
  • 作者

    Guanglei Qiu; Yi-Ming Law; Subhabrata Das; Yen-Peng Ting;

  • 作者单位

    Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore;

    Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore;

    Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore;

    Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore;

  • 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
  • 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