Wastewater Treatment and Reclamation by Aerobic Granulation Membrane Bioreactor (AGMBR)

好氧造粒膜生物反应器（AGMBR）废水处理和回收

• 批准号: RGPIN-2015-06648
• 负责人: Tay, JooHwa
• 金额: $ 2.48万
• 依托单位: University of Calgary
• 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=666593
• 关键词: Wastewater; Treatment; Reclamation; Aerobic; Granulation

The main objective of this research program is the development of novel aerobic granulation membrane bioreactor (AGMBR) technology for wastewater treatment and reclamation. The AGMBR system integrates innovative aerobic granulation and membrane filtration technologies to achieve a highly efficient, cost-effective and low fouling process for the treatment and reclamation of municipal and industrial wastewaters. An AGMBR employs aerobic granules to biodegrade water pollutants and membrane filtration to separate the treated effluent from aerobic granules. *Aerobic granulation is a recent innovation in wastewater treatment processes and depends on the physiological capabilities of aerobic granules to break down the undesired pollutants in wastewater. The unique feature of the process is the cultivation of compact aerobic granular sludge developed from the self-aggregation of microbial cells without biocarriers. Aerobic granules have a number of advantages: a strong and compact structure, excellent settleability, high biomass retention, rapid self-immobilization, high resilience to shock loadings and chemical toxicity, low sludge yield, high organic loading and significant reductions in the reactor volume and space requirements. *The membrane bioreactor (MBR) is another innovation that integrates an activated sludge process with membrane technology for wastewater treatment and reclamation. MBR has many advantages: small footprint, high biomass retention, high effluent quality. However, MBR suffers a major drawback in fouling. Membrane fouling remains a major challenge and is a main reason why application of the activated sludge MBR is not wider used. During filtration of the activated sludge in MBR, fouling decreases the membrane permeability and thus treated water flux, which results in higher operational and maintenance costs, higher energy consumption, difficulties in utilization, reduced operational flexibility, and frequent cleaning and replacement of membrane. *In the AGMBR system, aerobic granules formation from flocs may prevent pore clogging and alleviate fouling of the membrane. The integration of these two technologies provides the benefits of small footprint, cost-effective, high effluent quality, energy saving, high tolerance to toxic chemicals, low sludge yield, low fouling and high sustainability for wastewater treatment and reclamation. As a result, AGMBR is an integrated, sustainable, innovative wastewater and reclamation solution for municipal and industrial applications. *The novel AGMBR technology will ultimately contribute to Canada's efforts in environmental protection and sustainable development and can be exploited and deployed in other biological wastewater treatment facilities worldwide. The patentable process could potentially be widely applied in the wastewater industry in Canada and markets worldwide. *

本研究的主要目标是开发新型好氧颗粒膜生物反应器(AGMBR)技术，用于废水处理和回用。AGMBR系统集成了创新的好氧颗粒化和膜过滤技术，为市政和工业废水的处理和回收实现了高效、经济和低污染的工艺。AGMBR采用好氧颗粒污泥对水污染物进行生物降解，并采用膜过滤将处理后的出水与好氧颗粒污泥分离。*好氧颗粒化是废水处理工艺中最近的一项创新，依靠好氧颗粒的生理能力来分解废水中不受欢迎的污染物。该工艺的独特之处在于可以培养出致密的好氧颗粒污泥，这种污泥是由微生物细胞在没有生物载体的情况下自我聚集而成的。好氧颗粒污泥具有结构坚固紧凑、沉降性好、生物量保留率高、自固定化速度快、抗冲击负荷和抗化学毒性能力强、污泥产率低、有机负荷高、反应器体积和空间要求显著降低等优点。*膜生物反应器(MBR)是将活性污泥法与膜技术相结合的另一项创新，用于废水处理和回收。MBR具有占地面积小、生物量滞留率高、出水水质好等优点。然而，MBR在污染方面存在一个重大缺陷。膜污染仍然是活性污泥膜生物反应器应用中面临的一大挑战，也是活性污泥膜生物反应器没有得到广泛应用的主要原因。在膜生物反应器中活性污泥的过滤过程中，污染会降低膜的渗透性，从而降低处理后的水通量，导致运行维护费用高、能耗高、使用困难、运行灵活性降低以及频繁的膜清洗和更换。*在AGMBR系统中，絮体形成的好氧颗粒可以防止孔堵塞和减轻膜的污染。这两种技术的结合具有占地小、成本低、出水水质高、节能、对有毒化学品耐受性高、污泥产率低、污垢少和可持续发展等优点，可用于废水处理和回收。因此，AGMBR是一种针对市政和工业应用的集成、可持续、创新的废水和回收解决方案。*新的AGMBR技术最终将有助于加拿大在环境保护和可持续发展方面的努力，并可在世界各地的其他生物废水处理设施中开发和部署。这一可申请专利的工艺可能会广泛应用于加拿大的废水处理行业和全球市场。