What is wastewater pretreatment?
Sewage treatment plants are designed to break down and treat biological wastes. Wastewater pollutants such as heavy metals and oils will not break down in the treatment plant; therefore, certain businesses need to treat their wastewater before discharging to the sewer. The pretreatment system, such as oil / water separation, chemical precipitation, or filtration, will depend on the type and concentration of pollutants in the wastewater.

If your wastewater requires pretreatment, you are required to get an approval from the Industrial Pretreatment Program before discharging or connecting to the sewer.

Show All Answers

1. What is industrial waste?
2. What is hazardous waste?
3. How does wastewater get to the treatment plant?
4. What is the difference between sewage and storm sewers?
5. How is wastewater treated?
6. What is wastewater pretreatment?
7. What are biosolids?