New technology for ammonium nitrogen recovery from wastewater. Phase I.

废水中氨氮回收新技术。

• 批准号: 430506-2012
• 负责人: Mavinic, Donald
• 金额: $ 4.22万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=573978
• 关键词: New; technology; ammonium; nitrogen; recovery

Nitrogen is one of the most essential nutrients for life. Large amounts of it are present in the air; however it is not available to the organisms and plants in this form. In order to make it available, it is turned into ammonia gas, using rather expensive chemical process which consumes substantial amounts of fossil fuels and energy, and produces greenhouse gases. At the same time, almost any municipal wastewater stream, and many industrial ones, contain large quantities of nitrogen in the form ammonium, or ammonia. Unless treated properly, it can cause environmental pollution problems. Currently, many wastewater treatment plants convert ammonium back into the nitrogen gas, the form it is present in the air. However, most of such technologies are very expensive and sometimes cannot be applied to some wastewater streams. The proposed technology of ammonium nitrogen recovery from wastewater enables us to remove it without chemical or biological destruction, and turn it into different commercial products. They can potentially substitute for some industrial synthetic ammonia products. This new technology will produce ammonia, or products containing it, from wastewater, reducing the need for the expensive synthetic ammonia production. At the same time, the wastewater treatment challenges to remove ammonium nitrogen will be addressed. Some of the products of this technology may be: purified wastewater, ammonia containing fertilizer, or ammonia gas. The latter can be used not only in agriculture, but also as an alternative fuel. The technology differs from any other nitrogen recovery technologies in that it is very sustainable, relatively simple, cheap, and does not require much additional resources. This research project will develop theoretical and engineering principles of this new technology, demonstrate its potential, and verify the applications of the final commercial products. The technology is then expected to attract early-stage investments and be ready for transferring to a new or established company for its commercialization. The technology will undoubtedly benefit many industrial fields in Canada, such as waste management, agriculture, and energy production.

氮是生命最重要的营养素之一。空气中含有大量的它；然而，生物体和植物无法以这种形式获得它。为了使其可用，需要使用相当昂贵的化学过程将其转化为氨气，该过程消耗大量化石燃料和能源，并产生温室气体。与此同时，几乎所有的城市废水流和许多工业废水流都含有大量铵或氨形式的氮。如果处理不当，可能会造成环境污染问题。目前，许多废水处理厂将氨转化回空气中存在的氮气形式。然而，大多数此类技术非常昂贵，有时无法应用于某些废水流。所提出的从废水中回收铵氮的技术使我们能够在不发生化学或生物破坏的情况下将其去除，并将其转化为不同的商业产品。它们有可能替代一些工业合成氨产品。这项新技术将从废水中生产氨或含有氨的产品，从而减少对昂贵的合成氨生产的需求。同时，去除氨氮的废水处理挑战也将得到解决。该技术的一些产品可能是：净化废水、含氨肥料或氨气。后者不仅可用于农业，还可作为替代燃料。 该技术与任何其他氮回收技术的不同之处在于，它非常可持续、相对简单、便宜，并且不需要太多额外资源。该研究项目将开发这项新技术的理论和工程原理，展示其潜力，并验证最终商业产品的应用。然后，该技术预计将吸引早期投资，并准备好转移到新公司或已成立的公司进行商业化。该技术无疑将使加拿大的许多工业领域受益，例如废物管理、农业和能源生产。