With the increasingly prominent global environmental problems, people pay more attention to environmental protection, and green sustainable development has become the main theme of social development. In this context, as an important link of environmental pollution control and resource recycling, sewage treatment technology has also ushered in new changes and development opportunities. This paper will discuss several important improvement directions in the field of sewage treatment under the trend of environmental protection.

First, from terminal management to whole process management

Traditional sewage treatment often focuses on the treatment and purification of pollutants after discharge, while ignoring the importance of source reduction. Modern environmental protection concept advocates reducing pollution from the source and realizing effective management and control of the whole process. This means that enterprises should not only optimize the production process to reduce the discharge and concentration of wastewater, but also improve the recycling rate of wastewater through technological innovation, such as adopting closed-circuit circulation system to reduce water consumption.

II. Application and Development of Biotechnology

In recent years, with the progress of science and technology such as molecular biology and genetic engineering, natural attenuation and plant purification method have gradually become the research focus and achieved remarkable results. These methods based on natural ecological principles can not only effectively remove harmful substances in water, but also promote the restoration of ecosystem balance. For example, the application of wetland plant filtration system in urban rainwater runoff is a good example, which can beautify the environment and improve water quality.

Third, the construction of intelligent monitoring and management platform

With the help of modern information technologies such as the Internet of Things and big data analysis, a smart water platform can be established, which can realize real-time monitoring of the operation status of sewage treatment facilities and early warning of abnormal situations, thus ensuring stable and reliable treatment effect; At the same time, it can also provide decision support for government supervision departments and promote the standardized development of the industry.

Fourth, multidisciplinary cross-integration promotes technological innovation

Facing the complex and changeable environmental pollution challenges, it is difficult for a single technology to meet the actual needs. Therefore, future research should focus on cross-disciplinary cooperation, integrate the knowledge and technical advantages of chemistry, physics, materials science and other disciplines, and develop more efficient, energy-saving and economical new processes and products, such as nano-material adsorbents and photocatalytic oxidation devices.

In short, while pursuing economic development, we must attach great importance to the protection of ecological environment, constantly explore and improve the sewage treatment technology system, and strive to build a beautiful home where man and nature coexist harmoniously.