Nitrogen Removal in Wastewater Treatment Using the Nitrite Pathway

亚硝酸盐途径在污水处理中的脱氮作用从我们的废水中去除氮在澳大利亚大部分地区变得非常重要，以保护我们独特的水环境。这种去除在生物上是通过两个步骤实现的：硝化作用将铵通过亚硝酸盐转化为硝酸盐；反硝化作用将硝酸盐通过亚硝酸盐再次转化为无害的氮气。该项目旨在开发一种方法，使这一过程只通过亚硝酸盐，而不是硝酸盐，进入氮气。这将显著减少脱氮过程中的氧气和/或碳需求。如果成功，新的运营方法将使现代污水处理厂能够以更低的成本实现更好的出水质量。

Nitrogen Removal in Wastewater Treatment Using the Nitrite Pathway. Nitrogen removal from our wastewater is becoming very important in most parts of Australia to protect our unique aquatic environment. This removal is achieved biologically through two steps: Nitrification converts ammonium via nitrite to nitrate; and denitrification converts nitrate via nitrite again to harmless nitrogen gas. This project aims to develop a method that allows this process to go just via nitrite, instead of nitrate, to nitrogen gas. This would significantly reduce oxygen and/or carbon requirement in nitrogen removal. If successful, the new operating method will allow modern wastewater treatment plants to achieve a better effluent quality at lower costs.