Dual membrane bioreactor processes for wastewater treatment and reuse

用于废水处理和再利用的双膜生物反应器工艺

• 批准号: 205004-2008
• 负责人: Zhou, Hongde
• 金额: $ 1.68万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=505184
• 关键词: Dual; membrane; bioreactor; processes; wastewater

Submerged membrane bioreactor technologies have experienced unprecedented growth in wastewater treatment and reuse because of excellent solid separation efficiency. However, vigorous sparging aeration is required in order to shear the deposited particles away from the membrane surface, resulting in high energy consumption. The purpose of the proposed study is to develop and apply new dual membrane bioreactor processes (DMBR) consisting of two separate sets of membrane modules submerged in bioreactors. One set of membrane modules is used for bubbleless aeration to drastically increase the oxygen transfer efficiency and/or provide the media for biofilm growth while another remains for solid separation. Another distinct feature is that DMBR processes can be operated to create both aerobic and anaerobic environments across the biofilm in a single system, allowing the co-metabolism of refractory organic microppolutants while minimizing their loss from air stripping

浸没式膜生物反应器技术因其优良的固体分离效率，在废水处理和回用方面取得了前所未有的发展。然而，为了将沉积的颗粒从膜表面剪切下来，需要大力的喷雾曝气，从而导致高能耗。本研究的目的是开发和应用由浸没在生物反应器中的两套膜组件组成的新型双膜生物反应器工艺(DMBR)。其中一套膜组件用于无泡曝气，以显著提高氧气传递效率和/或为生物膜生长提供介质，而另一套膜组件用于固体分离。另一个明显的特点是，DMBR工艺可以在单一系统中创造整个生物膜上的好氧和厌氧环境，允许难降解的有机微污染物共代谢，同时将它们在空气剥离中的损失降至最低