A novel hybrid bioreactor for treatment of municipal and industrial wastewater

按体积计算，城市污水是加拿大最大的单一污水排放量。城市污水可能包括来自家庭、企业、工业和机构的卫生污水，以及排入卫生下水道的雨水和融化的雪。这种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、悬浮固体以及家庭和工业化学品。一系列常规的物理和生物工艺已被用于处理各种类型的废水，包括但不限于好氧/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，需要与其他去除工艺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是一种新型的复合式气升式生物反应器，用于处理含有不同BOD/COD和COD/N比的难降解有机物的市政和工业废水。它配备了连续状态的内部旋转沉淀器，用于处理含有难降解污染物的废水。这项新技术的易操作性和经济优势使其成为一种独特而高效的废水处理工具。本发明通过提供一种高速率混合单级系统，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，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内，也可以作为新的单级生物反应器用于处理任何市政和工业废水。它适用于以较低的成本和较小的占地面积处理各种废水(例如，生活污水、垃圾渗滤液和各种市政和工业废水)。这项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治疗方案。

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.