Cost-effective leachate treatment using aerobic granular sludge technology

使用好氧颗粒污泥技术进行经济高效的渗滤液处理

• 批准号: 570654-2021
• 负责人: Liu, YangY
• 金额: $ 2.73万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=748975
• 关键词: Cost; effective; leachate; treatment; using

Landfill leachate is complex wastewater composed of organic carbon, nitrogen compounds, dissolved solids, and heavy metals. Leachate characteristics may differ depending on the waste landfilled, climate conditions, and landfill age. Because of the toxic and recalcitrant nature of its constituents, landfill leachate wastewater (LLW) must be treated before being released to the environment. There is an urgent need to develop robust and energy and cost-efficient leachate treatment processes that can handle the high organic carbon and high ammonia loadings of leachate while being able to withstand the toxicity and inhibition that may arise due to the heavy metals of leachate.In this two-year project, Dr. Liu's research group at the University of Alberta will collaborate with the City of Edmonton, to develop and optimize aerobic granular sludge (AGS)-based nitritation/denitritation/anammox treatment processes for energy-efficient high-strength LLW treatment. Pilot-scale bioreactors will be operated and optimized for enhanced ammonia reduction efficiency, improved energy efficiency, and reduced environmental impacts for LLW treatment. The focus will be to determine the optimal conditions for LLW treatment and select the operation conditions and control strategies most favorable for developing a robust microbiome within bioreactors. These activities will enable us to provide guidance for future full-scale implementation of AGS-based LLW processes.

垃圾渗滤液是由有机碳、氮化合物、溶解固体和重金属组成的复杂废水。渗滤液特性可能因填埋的废物、气候条件和填埋年龄而异。由于其成分具有毒性和顽固性，垃圾填埋场渗滤废水 (LLW) 在排放到环境中之前必须进行处理。迫切需要开发稳健、能源和成本效益高的渗滤液处理工艺，能够处理渗滤液的高有机碳和高氨负荷，同时能够承受渗滤液重金属可能产生的毒性和抑制作用。在这个为期两年的项目中，刘博士在阿尔伯塔大学的研究小组将与埃德蒙顿市合作，开发和优化基于好氧颗粒污泥（AGS）的亚硝化/反亚硝化/厌氧氨氧化处理工艺，节能高强度 LLW 处理。 将运行和优化中试规模的生物反应器，以提高氨氮还原效率、提高能源效率并减少低放废物处理对环境的影响。重点是确定低放废物处理的最佳条件，并选择最有利于在生物反应器内发展强大的微生物组的操作条件和控制策略。这些活动将使我们能够为未来全面实施基于 AGS 的 LLW 流程提供指导。