A novel hybrid bioreactor for treatment of municipal and industrial wastewater

一种用于处理城市和工业废水的新型混合生物反应器

• 批准号: 560495-2021
• 负责人: TofighRayhani, Mohammad
• 金额: $ 0.88万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 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=706762
• 关键词: novel; hybrid; bioreactor; treatment; municipal

Municipal wastewater effluents are the largest single effluent discharges, by volume, in Canada. Municipal wastewater may consists of sanitary sewage from homes, businesses, industries and institutions as well as the rain and melted snow that drain into sanitary sewers. This wastewater typically contains human and other organic waste, nutrients, pathogens, microorganisms, suspended solids and household and industrial chemicals. A series of conventional physical and biological processes have been used for treatment of various types of wastewaters including but not limited to aerobic/anaerobic bioreactors, chemical precipitation, adsorption and reverse osmosis. However, in most cases, these methods are only able to remove a fraction of contaminants and need to be combined with other removal technics for an integrated treatment. This will add to the capital and operational costs of the treatment system as well as associated environmental burdens. HALBR is a novel hybrid airlift bioreactor to treat municipal and industrial wastewaters containing refractory organic compounds with different BOD/COD and COD/N ratios. It is equipped with an internal rotating settling device with continuous regime for treating wastewaters containing refractory pollutants. Ease of operation and economic advantages of this novel technique makes it a unique and efficient wastewater treatment tool. The invention prevails over the drawbacks of the prior art through providing a high-rate hybrid and single-stage system. The treated effluent from the spiral separator is discharged continuously and may go through an ultrafiltration membrane to produce hygienic water. HALBR can be installed within any existing conventional wastewater treatment plants or used as a new single-stage bioreactor for treatment of any municipal and industrial wastewater. It is applicable for treatment of a wide range of wastewaters (e.g., domestic sewage, landfill leachate and a wide range of municipal and industrial wastewaters) at a lower cost and smaller footprints. This invention will also be an ideal treatment solution for many rural and remote communities in Canada and around the world.

在加拿大，城市废水是最大的单一废水排放量。城市废水可能包括来自家庭、企业、工业和机构的生活污水，以及排入下水道的雨水和融雪。这些废水通常含有人类和其他有机废物、营养物质、病原体、微生物、悬浮固体以及家用和工业化学品。一系列常规的物理和生物方法已经用于处理各种类型的废水，包括但不限于需氧/厌氧生物反应器、化学沉淀、吸附和反渗透。然而，在大多数情况下，这些方法只能去除一小部分污染物，需要与其他去除技术相结合，进行综合处理。这将增加处理系统的资本和运营成本以及相关的环境负担。 HALBR反应器是一种新型的混合气升式生物反应器，用于处理含有不同BOD/COD和COD/N比的难降解有机物的城市和工业废水。它配备了一个内部旋转沉降装置，可连续处理含有难降解污染物的废水。这种新技术的易操作性和经济优势使其成为一种独特而有效的废水处理工具。 本发明通过提供高速率混合和单级系统克服了现有技术的缺点。螺旋分离器处理后的出水连续排放，并可通过超滤膜生产卫生用水。 HALBR可以安装在任何现有的传统污水处理厂中，也可以作为一种新的单级生物反应器用于处理任何城市和工业废水。它适用于处理各种废水（例如，生活污水、垃圾渗滤液和各种市政和工业废水），成本更低，占地面积更小。本发明也将是加拿大和世界各地许多农村和偏远社区的理想处理解决方案。