The significance of sewage treatment equipment is mainly reflected in the following aspects:

1. Environmental protection: Sewage treatment equipment can effectively remove harmful substances in sewage, reduce pollution to water bodies, and protect water resources. The treated water can meet the national discharge standards, thereby reducing the pollution of the air, soil, water and other environments. This is essential for maintaining ecological balance and protecting the environment.

2. Resource utilization: sewage treatment equipment can recover and utilize useful substances in sewage, such as organic matter, nitrogen, phosphorus, etc. Such resource recycling not only improves resource utilization and reduces waste, but also contributes to sustainable development.

3. Urban construction and image enhancement: Sewage treatment equipment not only solves the problem of urban sewage treatment, but also promotes urban construction and improves the level of urban environmental protection. A city with good sewage treatment facilities will also enhance its overall image and taste.

4. Health and safety protection: the water treated by sewage treatment equipment can reduce the harm to human health. This treatment reduces the amount of pathogens and harmful substances in the water, thus improving the safety of people's lives.

In summary, sewage treatment equipment is of great significance in environmental protection, resource utilization, urban construction and health and safety protection. These devices not only improve the ecological environment, but also improve people's quality of life, and make a positive contribution to the sustainable development of society.