| Drinking Water Treatment Technology |
| A common drinking water treatment technology used for municipal water systems is carbon filtration. With this drinking water treatment technology, coagulation removes dirt and other particles suspended in water. Initially, alum and other chemicals are added to the water to form tiny sticky particles called “floc,” which attract dirt particles. The combined weight of the dirt and the alum – basically the floc – become heavy enough to sink to the bottom during sedimentation. While the heavy particles, or floc, settle to the bottom, the clear water moves to the filtration process where it is passed through filters with layers of sand, gravel and charcoal that help remove even smaller particles. The water is then placed in a closed tank or reservoir in order for disinfection to take place. Finally, the water that has been treated with this drinking water treatment technology then flows through pipes to homes and businesses in the community. Home Page | FAQs | Glossary | Contact Us |