Together with climate change, rising living standards throughout the world have put pressure on existing freshwater sources and increased global water scarcity. The reclaimed wastewater projects face obstacles in sustainable implementation. This paper reviews Political, Economic, Social, Technological, Environmental and Legal (PESTEL) factors that act as barriers to the successful implementation of the reclaimed wastewater. Owing to COVID-19, pandemic and presence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in wastewater, future consequences on operations and public acceptance of reclaimed wastewater systems are discussed. This review will be useful for water experts, researchers and project planners for appropriate measures in future wastewater reuse projects.

加上气候变化，世界各地生活水平的提高给现有的淡水源造成了压力，并加剧了全球水资源的短缺。再生废水项目在可持续实施方面面临障碍。本文回顾了政治，经济，社会，技术，环境和法律（PESTEL）因素，它们是成功实施再生废水的障碍。由于COVID-19，大流行以及废水中存在严重急性呼吸系统综合症冠状病毒2（SARS-CoV-2），因此对回收废水系统的运行和公众接受度进行了讨论。该审查将对水专家，研究人员和项目计划人员在将来的废水回用项目中采取适当措施非常有用。