First, the importance of sewage treatment

Water pollution not only affects the beauty of the natural environment, but also damages the ecosystem and threatens the survival and safety of human beings and other creatures. Through effective sewage treatment measures, harmful substances in wastewater can be removed or reduced, water resources can be protected from further pollution, clean domestic water can be provided for human beings, and necessary conditions can also be provided for industrial production.

Second, the core technology of sewage treatment

1. Physical treatment: mainly including grid filtration, precipitation and other methods, which are used to remove larger suspended solids and floating objects in sewage.

2. Chemical treatment: chemical reactions (such as coagulation and redox) are used to degrade or transform pollutants, which is suitable for removing small molecular organic substances and heavy metal ions that are insoluble in water.

3. Biological treatment: It is one of the most economical and widely used methods to decompose organic pollutants in water by the metabolism of microorganisms. Activated sludge process and biofilm process are the two most common biological treatment methods.

4. Advanced Oxidation Process (AOPs): It combines the advantages of various technologies and can effectively treat trace pollutants that are difficult to be removed by traditional methods, such as drug residues and endocrine disruptors.

Third, technological innovation and development trend

With the progress of science and technology, more and more new technologies and materials are applied in the field of sewage treatment. For example, the application of nano-materials improves the adsorption efficiency of pollutants; Electrocatalytic technology provides a new way for efficient degradation of refractory organic compounds. In addition, the introduction of intelligent management system also makes the sewage treatment process more accurate and controllable, which is helpful to maximize the recycling of resources.

IV. Conclusion

Facing the increasingly serious water pollution problem, it is particularly important to strengthen the research and application of sewage treatment technology. future, we should continue to increase investment, promote scientific and technological innovation, promote the development of sewage treatment industry in the direction of higher efficiency and lower energy consumption, and at the same time enhance public awareness of water resources protection and work together to build a harmonious and beautiful ecological environment.

To sum up, The Core of Sewage Treatment in the Essence of Environmental Protection is not only a technical discussion on how to treat sewage scientifically and reasonably, but also a proposal calling on all sectors of society to pay close attention to and support water resources protection.