Process intensification of high-solids anaerobic digestion of organic solid waste

有机固废高固厌氧消化工艺强化

• 批准号: 570464-2021
• 负责人: Dhar, BiproBR
• 金额: $ 2.04万
• 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=748917
• 关键词: Process; intensification; solids; anaerobic; digestion

Waste services represent a significant portion of the annual municipal budget in cities across Alberta and other provinces in Canada. Notably, municipalities and waste service providers across Canada continue to experience the challenges of balancing population growth and sustainable municipal solid waste (MSW) practices. Notably, landfilling of organic waste became a severe environmental and public health concern. The high-solids anaerobic digestion (HSAD) represents an attractive circular economy approach via bioconversion of organic solid waste to biogas that can meet on-site heat and electricity needs or be upgraded to renewable natural gas (RNG) or hydrogen gas. Nonetheless, various operational challenges, including low methane recovery and process instability, still limit HSAD systems from being widely applied in solid waste management facilities. In this proposed project, the research team will undertake systematic lab studies to achieve process intensification, high-quality biogas and enhance resilience against process instability. The lessons learned from this proposed project will open the doors of sustainability, diverting organic waste from landfills.

垃圾处理服务占阿尔伯塔省和加拿大其他省份城市年度市政预算的很大一部分。值得注意的是，加拿大各地的市政当局和废物处理服务提供商继续面临着平衡人口增长和可持续城市固体废物（MSW）实践的挑战。值得注意的是，有机废物的填埋已成为严重的环境和公共卫生问题。高固体厌氧消化（HSAD）代表了一种有吸引力的循环经济方法，通过将有机固体废物生物转化为沼气，可以满足现场热和电力需求或升级为可再生天然气（RNG）或氢气。尽管如此，各种操作挑战，包括甲烷回收率低和工艺不稳定，仍然限制了 HSAD 系统在固体废物管理设施中的广泛应用。在这个拟议项目中，研究团队将进行系统的实验室研究，以实现过程强化、高质量沼气并增强对过程不稳定的抵御能力。 从这个拟议项目中吸取的经验教训将打开可持续发展的大门，将有机废物从垃圾填埋场转移出去。