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: $ 8.38万
• 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: 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=515477
• 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、清洁空气和水质问题提供解决方案的清洁技术是环境工程领域的全球优先事项。作为加拿大通过开发节能清洁技术减少温室气体产生的国家努力的一部分，该提案旨在开发一种新颖且具有成本效益的生物处理系统，用于从富含氨的废水中去除有毒氨。这项研究和开发旨在将不同类型的细菌引入新型生物反应器中。这种细菌被称为厌氧氨氧化菌，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从高氨废水中去除铵的具有成本效益和可持续性的方法。与传统的甲醇硝化反硝化相比，运行成本和CO2排放量降低了90%。在拟议的研究过程中，将在不列颠哥伦比亚省Abbottsford的J.A.M.E.S污水处理厂建造并安装中试规模的序批式反应器（SBR）。该系统将运行和优化，用于处理J.A.M.E.S工厂生产的浓缩液。将对不同环境条件下厌氧氨氧化反应进行详细的动力学研究。利用SBR法生产的生物质，在不同的氨与亚硝酸盐的比例、温度和pH条件下，研究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的研究提供所需的信息，下一阶段的研究将侧重于干预。GPS-X计算机建模软件将用于研究和模拟的处理厂的性能，在脱氮和温室气体排放方面，如果厌氧氨氧化是在全规模使用。模拟结果将提供必要的信息，比较厌氧氨氧化目前的生物和物理化学过程中用于氨去除离心分离液。该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应用潜力。