How is wastewater treated?
The wastewater is treated by means of mechanical separation, gravity, and biological treatment. As the wastewater enters our treatment plant, it flows through the head works. Inside the head works is a screen that captures large pieces conveyed by the stream (trash, clothing, etc.). The flow then passes through the grit classifier. This is an aerated area that allows small pieces of waste that are heavier than water to fall out.

Flow then enters our primary clarifier. The primary clarifier removes solid material and float able portions of the wastewater. Wastewater proceeds to the aeration basins where nitrogen and phosphorus removal occurs. The final step is disinfection by chlorination. Solids from this process are treated in digesting structures, then hauled to a local farm for use as crop nutrients.

Show All Answers

1. What are prohibited discharge standards?
2. What are categorical pretreatment standards?
3. What are local limits?
4. Who needs to develop local limits?
5. What is wastewater?
6. How is wastewater treated?
7. What if my sewer is not flowing normally?
8. How often should I clean my grease trap or grease interceptor?