Nitrogen removal from high ammonia and phosphorus streams using an ecologically friendly process: the Annamox process

使用生态友好的工艺从高氨和高磷流中脱氮：Annamox 工艺

• 批准号: 396892-2010
• 负责人: Mavinic, Donald
• 金额: $ 9.7万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=487578
• 关键词: Nitrogen; removal; ammonia; phosphorus; streams

Developing clean technologies which provide solutions to issues of climate change, clean air and water quality are global priorities in the environmental engineering sector. As part of Canada's national effort to reduce the production of greenhouse gas through developing energy efficient clean technologies, this proposal is aimed at developing a novel and cost effective biological treatment system for removing toxic ammonia from ammonia rich wastewater. This research and development aimed at implementing a different type of bacteria into a novel bioreactor. This bacterium, called Anammox bacterium, is able to convert ammonia to nitrogen gas under anaerobic condition. The Anammox bacteria provide a cost-effective and sustainable way of removing ammonium from high ammonia wastewaters. Compared to conventional nitrification and denitrification with methanol, the operational costs and CO2 emission are reduced up to 90 %. During the course of proposed research a pilot scale sequencing batch reactor (SBR) will be constructed and installed at J.A.M.E.S wastewater treatment plant in Abbottsford, BC. The systems will operated and optimized for treating the centrate produced at the J.A.M.E.S plant. A detailed kinetics study on Anammox under varying environmental conditions will be conducted. The kinetics of Anammox reaction will be studied at varying ammonia to nitrite ratio, temperature and pH using the biomass produced by SBR. Both kinetics and reactor performance data will provide the required information for the next phase of research that will be focused on meddling. GPS-X computer modeling software will be used to study and model the performance of the treatment plant in terms of nitrogen removal and greenhouse gas emissions if Anammox were to be used in full scale. The modeling results will provide the information necessary to compare the Anammox to current biological and physiochemical processes used for ammonia removal from centrate. The proposed research offers a simple and practical solution to nitrogen removal and therefore has a great potential to be implemented at wastewater treatment plants.

开发为气候变化、清洁空气和水质量问题提供解决方案的清洁技术是环境工程部门的全球优先事项。作为加拿大通过开发节能清洁技术来减少温室气体排放的国家努力的一部分，这项提议旨在开发一种新的、具有成本效益的生物处理系统，以去除富含氨的废水中的有毒氨。这项研究和开发的目的是将一种不同类型的细菌应用到一种新型生物反应器中。这种细菌被称为厌氧氨氧化细菌，能够在厌氧条件下将氨转化为氮气。厌氧氨氧化细菌提供了一种经济有效和可持续的方法来去除高氨氮废水中的氨氮。与传统的甲醇硝化和反硝化相比，运行费用和二氧化碳排放量最高可降低90%。在拟议的研究过程中，将在不列颠哥伦比亚省阿伯茨福德的J.A.M.E.S污水处理厂建造和安装一个中试规模的序批式反应器(SBR)。这些系统将进行操作和优化，以处理J.A.M.E.S工厂生产的百分率。将在不同的环境条件下对厌氧氨氧化进行详细的动力学研究。以SBR产生的生物质为原料，研究了不同氨氮比、温度和pH条件下厌氧氨氧化反应的动力学。动力学和反应堆性能数据都将为下一阶段以干预为重点的研究提供必要的信息。GPS-X计算机模拟软件将用于研究和模拟如果Anammox全面使用，处理厂在脱氮和温室气体排放方面的表现。模拟结果将提供必要的信息，将厌氧氨氧化与目前用于脱氨的生物和物理化学工艺进行比较。提出的研究为脱氮提供了一种简单实用的解决方案，因此在污水处理厂具有很大的实施潜力。