Development history of industrial wastewater treatment

With the rapid development of industry, the types and quantities of wastewater have increased rapidly, and the pollution of water bodies has become increasingly widespread and serious, threatening human health and safety. For environmental protection, the treatment of industrial wastewater is more important than the treatment of urban sewage.

Although the treatment of industrial wastewater began as early as the end of the 19th century, and a large number of experimental studies and production practices were carried out in the following half a century, due to the complex composition and changeable nature of many industrial wastewater, there are still some technical problems that have not been completely resolved. This is different from urban sewage treatment.