• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Water Research >The potential of hybrid forward osmosis membrane bioreactor (FOMBR) processes in achieving high throughput treatment of municipal wastewater with enhanced phosphorus recovery
【24h】

The potential of hybrid forward osmosis membrane bioreactor (FOMBR) processes in achieving high throughput treatment of municipal wastewater with enhanced phosphorus recovery

机译：混合正向渗透膜生物反应器（FOMBR）工艺在实现高通量处理市政废水和提高磷回收率方面的潜力

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

Extensive research in recent years has explored numerous new features in the forward osmosis membrane bioreactor (FOMBR) process. However, there is an aspect, which is revolutionary but not yet been investigated. In FOMBR, FO membrane shows high rejection for a wide range of soluble contaminants. As a result, hydraulic retention time (HRT) does not correctly reflect the nominal retention of these dissolved contaminants in the bioreactor. This decoupling of contaminants retention time (CRT, i.e. the nominal retention of the dissolved contaminants) from HRT endows FOMBR a potential in significantly reducing the HRT for wastewater treatment. In this work, we report our results in this unexplored treatment potential. Using real municipal wastewater as feed, both a hybrid microfiltration-forward osmosis membrane bioreactor (MF-FOMBR) and a newly developed hybrid biofilm-forward osmosis membrane bioreactor (BF-FOMBR) achieved high removal of organic matter and nitrogen under HRT of down to 2.0 h, with significantly enhanced phosphorus recovery capacities. In the BF-FOMBR, the used of fixed bed biofilm not only obviated the need of additional solid/liquid separation (e.g. MF) to extract the side-stream for salt accumulation control and phosphorus recovery, but effectively quarantined the biomass from the FO membrane. The absence of MF in the side-stream further allowed suspended growth to be continuously removed from the system, which produced a selection pressure for the predominance of attached growth. As a result, a significant reduction in FO membrane fouling (by 24.7 -54.5%) was achieved in the BF-FOMBR due to substantially reduced bacteria deposition and colonization. (C) 2016 Elsevier Ltd. All rights reserved.
机译：近年来，广泛的研究探索了正渗透膜生物反应器（FOMBR）工艺中的许多新功能。但是，有一个方面是革命性的，但尚未进行研究。在FOMBR中，FO膜显示出对各种可溶性污染物的高抑制率。结果，水力停留时间（HRT）不能正确反映这些溶解的污染物在生物反应器中的名义停留时间。污染物保留时间（CRT，即溶解的污染物的名义保留）与HRT的这种脱钩赋予了FOMBR潜在的显着降低废水处理的HRT的潜力。在这项工作中，我们报告了这种未开发的治疗潜力的结果。使用真正的市政废水作为进料，混合微滤-正渗透膜生物反应器（MF-FOMBR）和新开发的混合生物膜-正渗透膜生物反应器（BF-FOMBR）均能在HRT降至5％的条件下实现对有机物和氮的高度去除。 2.0 h，具有显着提高的磷回收能力。在BF-FOMBR中，固定床生物膜的使用不仅避免了额外的固/液分离（例如MF）来提取侧流以控制盐分积累和磷回收的需要，而且有效隔离了FO膜中的生物量。支流中不存在MF，进一步使悬浮的生长被连续地从系统中去除，这为附着生长的优势产生了选择压力。结果，由于细菌沉积和定殖的显着减少，BF-FOMBR中的FO膜结垢明显减少（减少了24.7 -54.5％）。 （C）2016 Elsevier Ltd.保留所有权利。

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