拉丁美洲经济委员会：2025年废水处理中甲烷的能量回收：萨尔瓦多、墨西哥和巴拿马的案例研究报告（英文版）

There is abundant evidence of the benefits ––which include the ability to make use of by-products such as water, nutrients, biosolids and energy–– of integrating circular economy principles into drinking water supply and wastewater treatment systems. However, despite the environmental and social returns that it affords, this approach is not recognized as a profitable option for sanitation utilities. While numerous studies in the region have demonstrated the financial viability of capturing me