Categories of Industrial Wastewater:
- Process Wastewater: This refers to water that comes into direct contact with people or materials during processes such as manufacturing, processing, repairing, treating, operating, cooling, rinsing, backwashing, service provision, animal husbandry, or natural resource development.
- Blowdown Wastewater: This is wastewater discharged from an industrial water circulation system to reduce the accumulation of pollutants in the water during the circulation process.
- Non-contact Cooling Water: This is water used exclusively for reducing temperature within heat exchange pipelines.
- Runoff Wastewater: This is wastewater containing pollutants generated by rainwater washing over outdoor facilities, building surfaces, or the ground of outdoor operational environments and raw materials.
The term "materials" mentioned in the first item includes raw materials, intermediate products, finished products, by-products, waste, exhaust gases, plants, animals, or other items.