• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Membrane technology 2008 >ON-LINE FOULING CONTROL FOR ENERGY REDUCTION IN MEMBRANEBIOREACTORS
【24h】

ON-LINE FOULING CONTROL FOR ENERGY REDUCTION IN MEMBRANEBIOREACTORS

机译：膜生物反应器中能量减少的在线控制

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

The capacity and number of MBR installations have increased significantly in recent years as therntechnology continues to evolve and demonstrate its benefits at full scale. Membrane fouling isrnthe most significant challenge faced by this technology and high energy requirement forrnmembrane fouling control remain the main reason why MBR operating costs are higher thanrnthose of a conventional activated sludge system.rnThe goal of this research project was to develop an on-line fouling control algorithm, based onrnthe resistance in series model. This on-line fouling controller carries out a real time analysis ofrnthe filtration operating conditions and determines the fouling mechanisms occurring in an MBRrninstallation. With this information, the system can be programmed to implement specific controlrnactions that address the actual fouling mechanism(s). In this way, MBR membrane fouling canrnbe proactively controlled, allowing the system to maximize hydraulic performance and energyrnefficiency.rnThis project consisted of two phases: concept development and full scale implementation.rnDuring the concept development phase the structure and components of the on-line foulingrncontroller were developed and validated at pilot scale. Later it was implemented at a full scalernMBR plant (3 MGD average daily flow capacity).rnThe results from this study show that the on-line fouling controller can be applied for processrncontrol in MBR systems. The on-line fouling controller results indicate that the initial resistancernis the main resistance in pilot and full scale MBR systems. Cake resistance is also significant,rnparticularly for full scale systems and peak flow conditions. The introduction of the on-linernfouling controller offers significant benefits such as energy savings and fouling mitigation.rnAdditional research is required to further develop the on-line fouling controller to includernadditional control parameters such as membrane aeration flow rate, backwash flow rate andrnduration amongst others.
机译：近年来，随着技术的不断发展并全面展示其优势，MBR安装的容量和数量已大大增加。膜结垢是该技术面临的最大挑战，膜结垢控制的高能耗要求仍然是MBR运行成本高于常规活性污泥系统的主要原因。rn该研究项目的目标是开发一种在线结垢控制系统该算法基于串联模型中的电阻。该在线结垢控制器对过滤操作条件进行实时分析，并确定MBRrn安装中出现的结垢机理。利用该信息，可以对系统进行编程以实施解决实际结垢机制的特定控制措施。这样，可以主动控制MBR膜结垢，从而使系统最大化水力性能和能源效率。该项目包括两个阶段：概念开发和全面实施。rn在概念开发阶段，在线结垢控制器的结构和组件在试验规模上进行了开发和验证。后来在满规模的MBR工厂（平均日流量为3 MGD）实施。这项研究的结果表明，在线结垢控制器可用于MBR系统的过程控制。在线结垢控制器的结果表明，初始阻力是飞行员和满量程MBR系统中的主要阻力。滤饼阻力也很重要，尤其是在满量程系统和峰值流量条件下。在线污垢控制器的引入提供了显着的好处，例如节省了能源并减少了污垢。需要进一步研究以进一步开发在线污垢控制器，以包括其他控制参数，例如膜曝气流量，反冲洗流量和持续时间等。

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