Energy recovery from food industry wastewater using microbial electrochemical cells and anaerobic membrane bioreactor

使用微生物电化学电池和厌氧膜生物反应器从食品工业废水中回收能量

• 批准号: 417829-2011
• 负责人: Lee, HyungSool
• 金额: $ 0.67万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 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=498247
• 关键词: Energy; recovery; food; industry; wastewater

We will develop innovative biotechnologies for treating high strength organic wastewater released from food industries, which will significantly reduce surcharge fees for over-strength wastewater effluent discharge and add supplemental economic benefits with cost-effective management and value-added products: methane gas production with anaerobic membrane bioreactors (AnMBRs) and hydrogen peroxide yield using microbial electrochemical cells (MECs). AnMBRs can effectively treat high organic wastewater without oxygen supply and recover methane gas, along with clean water production. A pilot-scale AnMBR will be operated with food wastewater released from Conestoga Meat Packers through collaborations of the University of Waterloo and GE Water and Process Technologies. The pilot study will evaluate effluent water qualities, methane recovery and membrane fouling for the food wastewater. Cost assessment will be conducted including methane recovery, operating and maintenance costs, excess sludge production and surcharge fees. We will evaluate in bench-scale experiments if MECs can resolve AnMBR limitations of dissolved methane and moderate biochemical oxygen demand (BOD) in permeates. The success of lab-scale MEC experiments enables us to complete an energy-capturing anaerobic wastewater treatment technology combining AnMBRs with MECs for high BOD wastewaters in food industries. Food industries employing the innovative wastewater treatment biotechnology will significantly save wastewater treatment costs, and derive additional benefits from water reuse and added-value products, which will considerably contribute to the growth of the food industry and natural protection in Canada.

我们将开发创新的生物技术来处理食品工业排放的高强度有机废水，这将大大降低高强度废水排放的附加费，并通过具有成本效益的管理和增值产品增加额外的经济效益：厌氧膜生物反应器（AnMBRs）产甲烷和利用微生物电化学电池（MECs）产过氧化氢。anmbr可以有效地处理无氧高有机废水，回收甲烷气，同时生产清洁水。通过滑铁卢大学和通用电气水处理技术公司的合作，一个中试规模的AnMBR将利用Conestoga肉类包装厂排放的食品废水进行操作。该试点研究将评估食品废水的出水水质、甲烷回收和膜污染。将进行成本评估，包括甲烷回收、运营和维护成本、多余污泥产量和附加费。我们将在实验中评估mec是否可以解决AnMBR中溶解甲烷的限制和调节渗透物的生化需氧量（BOD）。实验室规模MEC实验的成功使我们能够完成将anmbr与MEC相结合的能量捕获厌氧废水处理技术，用于食品工业的高BOD废水。采用创新废水处理生物技术的食品工业将大大节省废水处理成本，并从水的再利用和增值产品中获得额外的好处，这将大大促进加拿大食品工业的发展和自然保护。