用于灌的处理废水再利用:葡萄牙的可行性研究
Inês Areosa1, Tiago A E Martins2, Rita Lourinho3
1Department of Biosystems Science and Engineering, School of Agriculture, University of Lisbon, 1349-017 Lisbon, Portugal.
The Science of the total environment
|October 4, 2024
概括
在葡萄牙,经过处理的废水的再利用可以显著增加农业和旅游业的用水供应. 这项研究表明,再利用具有成本效益,为水资源短缺和气候脆弱性提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 循环经济是一个循环经济.
背景情况:
- 全球水资源短缺和气候变化需要可持续的水源.
- 在欧盟 (2.5%) 和葡萄牙 (2022年) 的处理废水再利用率不足 (1.2%).
- 专注于葡萄牙的泰戈斯河和Ribeiras do Oeste流域,以评估再利用潜力.
研究的目的:
- 评估葡萄牙增加处理废水再利用的可行性.
- 确定用于灌再利用的关键废水处理厂 (WWTP).
- 分析成本,质量和技术,寻找可行的再利用选择.
主要方法:
- 对于灌潜力的WWTP区域评估.
- 分析了包括过和消毒在内的五条处理线.
- 成本效益分析比较回收水与其他来源.
主要成果:
- 回收水的成本在0.02欧元/立方米至0.83欧元/立方米之间,与其他来源相比具有竞争力,并且比海水淡化更便宜.
- 分配和能源是关键的成本驱动因素;将WWTP转移到最终用户是节省成本的战略.
- 拟议的项目可以使区域的再利用率增加四倍,全国的再利用率增加一倍,灌超过2000公.
结论:
- 再利用经过处理的废水对于解决水资源短缺和提高资源可持续性至关重要.
- 倡导WWTP的去中心化,战略投资和政策干预,以实现成本效益高的再利用.
- 为其他地区提供关于循环水资源管理的指导.
更多相关视频
08:09Wastewater Irrigation Impacts on Soil Hydraulic Conductivity: Coupled Field Sampling and Laboratory Determination of Saturated Hydraulic Conductivity
Published on: August 19, 2018
9.1K
10:18Author Spotlight: Exploring Seaweed's Bioactive Compounds for Sustainable Innovations in Industries
Published on: November 21, 2023
2.5K
相关概念视频
00:46Bioremediation
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
01:27Design Example: Design of an Irrigation Channel
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
01:25Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...