I. Definition of Good Environmental Protection

The so-called "good environmental protection" means that a region or country can effectively balance the relationship between economic growth and environmental protection in the process of its economic development, and minimize environmental pollution, especially water pollution, by implementing a series of scientific and reasonable policy measures and technical means. This state is not only reflected in the support of policies and regulations, but also lies in the improvement of public awareness and the overall participation of society.

Second, the technological progress of sewage treatment

1. Biological treatment technology: The method of decomposing organic matter by microorganisms can reduce energy consumption and improve purification efficiency.

2. Membrane separation technology: advanced filter materials can effectively remove tiny particles and harmful chemical components in water.

3. Advanced oxidation process: advanced treatment of refractory pollutants by combining physical and chemical methods.

4. Resource recovery and reuse: valuable substances such as phosphorus and nitrogen are extracted from wastewater and converted into agricultural fertilizers or other industrial raw materials, thus achieving the goal of waste reduction and resource utilization.

Third, the design and operation of environmentally friendly sewage treatment facilities

-Fully consider the principle of energy saving and consumption reduction in the design stage, choose green building materials and optimize the layout to reduce the floor space;

-Strengthen operation management and regularly maintain equipment to ensure its long-term stable operation;

-Strengthen cooperation and exchanges with scientific research institutions, continuously introduce new technologies and achievements, and constantly improve the processing level.

IV. Significant social and economic benefits

1. Improve the water quality: the water source after effective treatment is cleaner, which is helpful to restore the health of rivers and lakes ecosystems;

2. Promote industrial development: provide technical support and service platform for relevant industrial chains to drive upstream and downstream enterprises to grow together;

3. Enhance residents' happiness: A clean living environment is conducive to people's physical and mental health and enhances community cohesion.

To sum up, under the background of good environmental protection, the sewage treatment work presents an excellent situation with superb technical level, advanced management mode and obvious social benefits. In the future, we should continue to increase investment, promote technological innovation and change of development model, and strive to build a beautiful home where man and nature coexist harmoniously.