Urban water bodies – lakes, fountains, rivers – enhance city image and ecology. But closed systems lack self-purification, leading to eutrophication, algae blooms, odor, and discoloration from runoff and pollution.
Industrial wastewater contains harmful pollutants from manufacturing processes. Its rapid growth threatens human health and the environment, making effective treatment more critical than municipal sewage treatment for environmental protection.
Urban water supply systems purify raw water from rivers, lakes, or groundwater into safe drinking water that meets national standards for residential, industrial, and municipal use.
Municipal sewage treatment is a key part of urban infrastructure and environmental protection, and the advancement of its technology and the improvement of management levels are crucial for ensuring water environment safety and sustainable development.