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基于热水处理的废水固体管理,以在邻近的美国地区有针对性的资源回收和脱碳
Jianan Feng1, Timothy J Strathmann2, Jeremy S Guest1,3
1The Grainger College of Engineering, Department of Civil and Environmental Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States.
Environmental science & technology
|September 9, 2025
概括
水热液化 (HTL) 为废水固体管理提供了废物转化为能源的解决方案. 这种方法可以降低水资源回收设施 (WRRF) 的成本和温室气体排放,同时回收有价值的肥料.
科学领域:
- 环境工程 环境工程
- 化学工程是化学工程的重要组成部分.
- 可持续能源 可持续能源
背景情况:
- 废水固体管理对水资源回收设施 (WRRF) 的运营成本和温室气体 (GHG) 排放产生重大影响.
- 传统的做法是能源和排放密集型,需要可持续的替代方案.
研究的目的:
- 评估基于水热液化 (HTL) 的"废物转化为能源"战略,用于处理废水固体.
- 评估邻近美国的HTL系统的财务可行性,成本节约,温室气体减排和资源回收潜力 (CONUS).
主要方法:
- 对CONUS地区的576个WRRF进行了独立的设施分析.
- 一个中心分析检查了基于HTL的治疗中心对WRRF网络的共享处理.
主要成果:
- 部署基于HTL的系统可以节省每天481万美元的成本,并在576个WRRF中每天减少1300CO2eq的温室气体排放.
- 该系统可以抵消大约1-2%的合成肥料,恢复和.
- 枢纽分析表明,WRRF网络具有特定固体质量流速和运输距离的扩展机会.
结论:
- 基于HTL的系统为废水固体管理提供了经济可行的战略,在CONUS中提供了显著的成本节约和温室气体排放减少.
- 固体的生物化学组成和内部回报率是可持续性的关键驱动因素.
- 通过HTL处理中心的共享处理增强了相互连接的WRRFs的脱碳潜力.
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