Simultaneous dissolved methane and nitrogen removal

同时去除溶解甲烷和氮

• 批准号: LP180100772
• 负责人: Prof Jianhua Guo
• 金额: $ 29.93万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2020
• 资助国家: 澳大利亚
• 起止时间: 2020-02-07 至 2023-02-06
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP180100772
• 关键词: Simultaneous; dissolved; methane; nitrogen; removal

Direct anaerobic treatment of wastewater converts majority of organic matters in wastewater to methane, an energy source. However, up to 50% of the methane produced stays dissolved in wastewater. Its subsequent stripping to atmosphere in aerobic treatment not only causes significant loss of energy but also emission of a potent greenhouse gas. This project aims to develop a technology that not only avoids methane stripping but also enables its beneficial use to enhance nitrogen removal, which is otherwise typically unsatisfactory due to the lack of organic carbon to support denitrification. The project will provide strong support to the Australian water industry in their endeavour to achieve energy- and carbon-neutral wastewater services.

废水直接厌氧处理将废水中的大部分有机物转化为能源甲烷。然而，产生的甲烷有高达 50% 溶解在废水中。随后在好氧处理中将其剥离到大气中，不仅会造成大量能量损失，还会排放强效温室气体。该项目旨在开发一种技术，不仅可以避免甲烷汽提，还可以有益地利用其来增强脱氮，而由于缺乏支持反硝化的有机碳，这种技术通常不能令人满意。该项目将为澳大利亚水务行业努力实现能源和碳中性废水服务提供强有力的支持。