Impacts of Hydrodynamics and Environmental Parameters on a Novel In-situ Bioreactor Performance in Cold Regions

寒冷地区流体动力学和环境参数对新型原位生物反应器性能的影响

• 批准号: 548862-2019
• 负责人: Zhang, Wenming
• 金额: $ 12.36万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=701058
• 关键词: Impacts; Hydrodynamics; Environmental; Parameters; Novel

Our industrial partner has developed a novel, in-situ bioreactor that has shown high treatment efficacy in 40+ wastewater lagoons in US and Canada. In this interdisciplinary research, we will examine the hydro- and bio-dynamic mechanisms underlying its high efficacy and further optimize the design and operation of the novel bioreactor. In particular, we will target addressing the following key scientific questions (knowledge gaps) for the broad academic and engineering community. (1) Hydro- and bio-dynamics for in-situ bioreactor in municipal wastewater lagoons; (2) Impacts of hydrodynamics and environmental parameters (e.g., low temperature, organic loading) to bioreactor's microorganism and performance; (3) Integrated coupling of hydro- and bio-dynamic models to understand and optimize bioreactor design and operation; (4) The potential and mechanism of sludge granulation in non traditional-column-type of flow conditions. This research is significant to Canada not only by generating new knowledge but also by directly benefiting municipalities and industries in managing wastewater lagoons. The new technology can significantly improve the digestion of lagoon sludge and thus restore historically lost lagoon space/capacity for future population growth and social-economic development, and increase wastewater treatment efficacy and thus better protect the environment and ecosystem of the receiving water bodies downstream.

我们的工业合作伙伴开发了一种新型的原位生物反应器，在美国和加拿大的40多个污水塘中显示出高处理效率。在这项跨学科的研究中，我们将研究其高效性背后的水力和生物动力学机制，并进一步优化新型生物反应器的设计和操作。特别是，我们将针对解决以下关键科学问题（知识差距）为广大的学术和工程界。(1)城市污水塘中原位生物反应器的水动力学和生物动力学;（2）水动力学和环境参数（例如，研究内容包括：（1）生物反应器的运行特性（包括低温、有机负荷）对生物反应器微生物和运行的影响;（2）水力和生物动力学模型的耦合，以了解和优化生物反应器的设计和运行;（3）非传统柱式流动条件下污泥颗粒化的潜力和机理。这项研究对加拿大意义重大，不仅产生了新的知识，而且直接使市政当局和工业在管理废水泻湖方面受益。新技术可以显著改善泻湖污泥的消化，从而恢复历史上失去的泻湖空间/容量，以满足未来人口增长和社会经济发展的需要，并提高废水处理效率，从而更好地保护下游接收水体的环境和生态系统。