As a leading provider of sewage cleanup services, we understand the importance of sewage treatment for maintaining public health and preserving the environment.
## The Process of Sewage Treatment
Sewage treatment involves multiple stages to remove pollutants and harmful contaminants from wastewater:
* **Primary Treatment:** Screens and grit chambers remove solids and heavy particles.
* **Secondary Treatment:** Biological processes (e.g., activated sludge) decompose organic matter.
* **Disinfection:** Chlorine or ultraviolet light kills bacteria and other pathogens.
## What Happens to the Leftover Sewage Sludge?
After treatment, wastewater is discharged into rivers or oceans. The leftover sludge, known as biosolids, is further processed:
* **Dewatering:** Sludge is thickened to reduce moisture content.
* **Stabilization:** Sludge is treated to destroy pathogens and stabilize organic matter.
* **Disposal Options:**
* **Land Application:** Biosolids can be used as fertilizer on agricultural land, providing nutrients to crops.
* **Landfill Disposal:** Biosolids can be disposed of in landfills, but this option is less environmentally sustainable.
* **Incineration:** Biosolids can be burned to generate energy and destroy harmful materials.