Cyclic activated sludge process is a new type of wastewater biological treatment process developed on the basis of SBR technology, the application of this method is based on the combination of social development and advanced science and technology based on a comprehensive sewage treatment collection measures and treatment processes, and in its work there are good working advantages and a wide range of applications. Up to now, many of our country's sewage treatment plant in the work of this process will be incorporated as the primary work technology for application. When using this dataset for life cycle assessment of municipal wastewater treatment, users should ensure that the temporal and technological context of the data (Chongnonsi, Thailand, 2014) matches their study scope. Users should also account for changes in regulation, technology, and wastewater composition that may have occurred since 2014. Furthermore, the dataset assumes a 'black box' unit process, and thus any extrapolation should be done with caution, considering the specific nature of the technology applied.