Analysis of problems faced by water treatment

1. Water treatment technology is not advanced enough
My country's water treatment technology is backward. In addition to the slow development, there is also a certain gap between the level of science and technology and advanced countries, and the effective use of water resources is not as good as developed countries. For example, in the 1990s, my country's industrial water recycling rate was only about 40%, which was only equivalent to the level of the United States in the early 1970s. Moreover, my country's sewage treatment rate is below 40%. Backward water treatment technology makes it impossible for our country to effectively use limited water resources, resulting in a lot of waste.
2. Serious water pollution
According to investigations, nearly 80% of the rivers in our country have been polluted to varying degrees, most of the rivers flowing through our large and medium-sized cities are polluted, and nearly 80% are seriously polluted. What is even more frightening is that the groundwater pollution in most large and medium-sized cities in my country is also very serious. With the unreasonable use of pesticides, the sources of some rivers have been polluted, which in turn has caused the entire river to escape, causing the pollution to spread from point to surface, from the main stream to the tributaries like a spider web.
3. Lack of water treatment technical personnel
Water treatment has become an issue that the world attaches great importance to. However, my country has not set up relevant majors to train professional water treatment technical personnel. The reason is that water treatment technology involves too many disciplines and fields, such as chemistry, physics, biology, environment and so on. Moreover, water treatment technology needs to be combined with practice and rely on high-tech science and technology. It is difficult to clearly give basic theories, and it is also difficult to teach and improve students' cognition.