What is the traditional approach to pollution control?

It is "pollution first, treatment later", which does not fundamentally solve the problem of industrial pollution.

The reason is simple: while we are managing, we are also emitting emissions.

Moreover, in order to control pollution, many countries and companies have invested a lot of money, shouldering a heavy economic burden.

At the same time, once pollutants are discharged into the environment and then treated, it not only increases the difficulty of treatment, but also makes it difficult to meet the treatment requirements.

In this way, people realized that the best way to solve the pollution problem is to check the source of pollution.