Samsami Zeinab, Jafari Ahmad Jonidi, Delnavaz Mohammad, Naderi Azra, Rashvanlou Reza Barati, Inchehboroun Behnam Movassagh, Dehghanifard Emad
Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran.
Sci Rep. 2025 Jan 2;15(1):294. doi: 10.1038/s41598-024-81380-4.
The population has increased in recent decades, and as a result, the increase in urban wastewater has led to many environmental problems. In this study, the environmental impacts of the Southern Tehran treatment plant were assessed via life cycle assessment (LCA) (SimaPro 9.4.0.2). The information needed for the LCA to be input to the system from the studied treatment plant for 12 months during the year 2022 was gathered from the database and analyzed using the Recepie method. The results of the final effects group showed that in both scenarios, damage to human health, the ecosystem and resource destruction were the most sensitive. A comparison of the final effects of the first and second scenarios revealed that reusing wastewater for irrigation on the Varamin Plain was a more environmentally friendly method, and discharging treated wastewater into receiving water was the worst. Although the use of treated wastewater and digested sludge for agricultural land may save a significant amount of water, it has significant adverse effects on carcinogenic and noncarcinogenic toxicity in humans due to the presence of heavy metals and has a negative effect on global warming.
近几十年来人口有所增加，因此城市废水的增加导致了许多环境问题。在本研究中，通过生命周期评估（LCA）（SimaPro 9.4.0.2）对德黑兰南部污水处理厂的环境影响进行了评估。2022年期间，从数据库收集了该研究污水处理厂12个月内输入系统进行LCA所需的信息，并使用Recepie方法进行了分析。最终影响组的结果表明，在两种情景下，对人类健康、生态系统的损害和资源破坏最为敏感。对第一和第二种情景的最终影响进行比较后发现，在Varamin平原将废水用于灌溉是一种更环保的方法，而将处理后的废水排放到受纳水体中则是最糟糕的方法。尽管将处理后的废水和消化污泥用于农业用地可能会节省大量水资源，但由于重金属的存在，它对人类的致癌和非致癌毒性有重大不利影响，并且对全球变暖有负面影响。
