The main function of industrial water treatment plants is to purify industrial wastewater and ensure that its discharge meets environmental protection standards, thereby reducing environmental pollution. Different types of industrial activities produce a wide variety of wastewater, including chemicals, heavy metals, organic matter, etc. Direct discharge of these wastewater without treatment will pose serious threats to water bodies, soil and biodiversity.

The operation of industrial water treatment plants is mainly divided into two basic stages: primary stage and secondary stage. First, in the primary stage, water treatment plants focus on removing solid particles and suspended solids from the water. Next is the secondary stage, which mainly uses biological treatment technology and uses microorganisms to decompose organic matter in the wastewater.

In industrial water treatment plants, the pretreatment stage is the first step in the entire treatment process. Next comes the coagulation and flocculation stages. After coagulation and flocculation, the water enters the sedimentation tank or sedimentation tank for sedimentation and settling. The precipitated water enters the filtration system for filtration. The last major step is disinfection, which aims to kill bacteria, viruses and other pathogens in the water to ensure that the water quality meets drinking water standards or industrial production requirements.