Innovative technologies & processes enabling energy neutral wastewater treatment

创新技术

• 批准号: RGPIN-2017-05178
• 负责人: Dagnew, Martha
• 金额: $ 1.6万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=648502
• 关键词: Innovative; technologies; processes; enabling; energy

Over the years, wastewater treatment objectives have become more stringent. These objectives demand more energy and higher wastewater treatment operating costs. These increasing costs coupled with emerging sustainability requirements are propelling researchers, industry, and utilities to come up with more efficient ways of managing wastewater. Mainstream wastewater treatment has undergone a paradigm shift; parties now emphasize wastewater energy recovery and the concurrent reduction of energy consumption. This shift enables wastewater treatment plants to achieve energy neutrality while meeting treatment objectives. Despite extensive effort and rapid technological advances, demonstrating mainstream energy neutrality is still challenging due to the diluted nature and lower operating temperature characterizing mainstream wastewater. Other challenges include process complexity, knowledge gaps in process control and the lack of robust technologies. ***The proposed research program will develop and integrate innovative nitrogen and carbon management technologies and processes to achieve energy-neutral mainstream wastewater treatment. The program will use an innovative membrane-aerated biofilm technology to enable an innovative low-energy-consuming nitrogen removal process. The program will integrate this low-energy-consuming process with an upstream mainstream anaerobic pre-treatment process for capturing and diverting carbon from wastewater and further enhancing energy production. This enhanced energy production, coupled with lower energy demand for nitrogen removal, is expected to result in an overall energy-neutral platform for mainstream wastewater treatment. A multi-scale approach with both bench- and pilot-scale components will be used to define process configurations, kinetic parameters, and the impact of carbon-to-nitrogen ratio and temperature on process performance and limits. Furthermore, carbon and nitrogen processes and energy models will be implemented in an open-source wastewater software environment, ultimately demonstrating energy neutrality on a computer simulation platform for a wide range of design parameters. This research will enable holistic process optimization, process performance evaluation, and energy benchmarking of these newly developed innovative processes and technologies. In this manner, wastewater can be treated with energy neutrality, not only ensuring a clean environment but doing so without further stress on the environment. A future generation of highly qualified personnel will be trained both in multi-scale experimental methods and computer simulations, thus keeping Canada on the forefront of energy-neutral wastewater treatment strategy and technology development.

多年来，废水处理目标变得越来越严格。这些目标需要更多的能源和更高的废水处理成本。这些增加的成本加上新兴的可持续性要求，推动了研究人员，行业和公用事业，以提出更有效的管理废水方法。主流的废水处理经历了范式转移。各方现在强调废水能源回收和同时减少能源消耗。这种转变使废水处理厂能够在达到治疗目标的同时达到能量中立。尽管大力努力和快速的技术进步，但由于稀释性质和较低的工作温度表征了主流废水，证明主流能量中立仍然具有挑战性。其他挑战包括过程复杂性，过程控制中的知识差距以及缺乏强大的技术。 ***拟议的研究计划将开发和整合创新的氮和碳管理技术和过程，以实现能源不良的主流废水处理。该计划将使用创新的膜体的生物膜技术来实现创新的低能氮去除过程。该计划将将这一低能消费的过程与上游主流厌氧的预处理过程相结合，以捕获和转移碳从废水中捕获和转移碳并进一步增强能源生产。这种增强的能源产生，再加上氮去除氮的能源需求较低，预计将为主流废水处理提供总体能量中性平台。台式和试验尺度组件的多尺度方法将用于定义过程配置，动力学参数以及碳与氮比和温度对过程性能和限制的影响。此外，将在开源废水软件环境中实现碳和氮的过程和能量模型，最终在计算机模拟平台上证明了各种设计参数的能量中立性。这项研究将实现这些新开发的创新过程和技术的整体过程优化，过程绩效评估以及能源基准测试。通过这种方式，废水可以用能量中立处理，不仅可以确保清洁的环境，而且可以在环境上进一步压力。未来一代高素质的人员将接受多尺度实验方法和计算机模拟的培训，从而使加拿大处于能源中性废水处理策略和技术开发的最前沿。