The primary conflict between the social economy's rapid development and industrial technology's prompt advancement is the scarcity of water resources, the pollution of the water environment and the damage to water ecology make this contradiction more prominent, therefore, in addition to ensuring ecological security, encouraging the resource usage of wastewater can also help to resolve the imbalance between the supply and demand of water resources. In addition, the supervision and implementation of increasingly strict ecological and environmental management standards and policies make it difficult for the effluent quality of many wastewater treatment plants to meet the discharge standards, of which the total nitrogen (TN) in