Novel nitrogen removal process via nitrite in a biofilm system and analysis of microbial community dynamics

生物膜系统中亚硝酸盐脱氮新工艺及微生物群落动态分析

• 批准号: LX0346843
• 负责人: Prof Jurg Keller
• 金额: $ 7.91万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Linkage - International
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2003-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LX0346843
• 关键词: Novel; nitrogen; removal; process; via

Nitrogen removal from wastewater is essential to protect our unique aquatic environment. This removal is typically achieved via two steps: Nitrification converts ammonium via nitrite to nitrate; denitrification converts nitrate via nitrite again to harmless nitrogen gas. This project will develop a biofilm reactor system, which enables this process to run via nitrite only, instead of nitrate. Savings of 40% carbon and 25% oxygen requirements are possible this way. This process has not yet been demonstrated under controlled conditions, but recent progress in the research groups in Australia and Korea now offer novel ways to accomplish this promising process.

从废水中去除氮对于保护我们独特的水生环境至关重要。这种去除通常通过两个步骤实现：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。该项目将开发一种生物膜反应器系统，使该过程仅通过亚硝酸盐而不是硝酸盐运行。这样可以节省40%的碳和25%的氧需求。这一过程尚未在受控条件下得到证实，但澳大利亚和韩国研究小组最近的进展现在提供了实现这一有希望的过程的新方法。