Wastewater Collection Flow Management
(Available Only from DFS)

The TAC II SCADA System includes the capability to implement a Patent-Pending Wastewater Collection Flow Management technology. With Wastewater Collection Flow Management you can experience pump run-time reductions in excess of 25%

There are three main components to our technology:

1. Lift Station Pump Management
2. Wastewater Treatment Plant Inflow Management
3. Sediment Elimination

Lift Station Pump Management

Lift Station Pump Management coordinates the efforts of lift station pumps operating along a common force main. A system of prioritizing the pump stations according to their pumping history prevents multiple stations from pumping simultaneously. Instead, each pump station waits until no higher priority pump station is operating. This lowers the head pressure in the main (against which each pump must work), allows each pump to work more efficiently and more quickly, and drastically lowers the amount of electric power needed to operate the pumps along a common main. A Utility may experience pump-run-time reductions in excess of 25% percent. The resulting diminished pump-run-time reduces energy costs, extends the life of pumps, and reduces pump maintenance expenses.

Wastewater Treatment Plant Inflow Management

Wastewater Treatment Plant Inflow Management seeks to reduce the large inflow surge that occurs at WWTPs during peak water usage hours each day. A system is implemented in which all pump stations throughout a collection service area are systematically emptied in the hours immediately prior to a period of expected high water consumption. By leveling the "peak" inflows that typically occur when families are rising for the day or are returning home from work and school, wastewater treatment plants are more effective. Overflows at head works are prevented, the need for surge or overflow tanks may be eliminated and biological treatment systems work more efficiently because inflow rates are steady.

Sediment Elimination

Sediment Elimination diminishes the need for vacuum trucks to clean underused force mains through the use of increased sewage flow, forced through the main at a high rate of speed. Force mains are often sized to accommodate growth that may still be years away. When the velocity of flow in a main is not sufficient to maintain "scour speed," solids fall out of the liquid waste and accumulate along the bottom of the main. This sediment hinders flow and allows wastewater to become septic, resulting in hazardous health conditions and odor problems. Sediment Elimination allows pump station wet well levels to reach a predetermined level that is higher than the normal lead pump activation level. When the predetermined level is reached, all pumps are forced on simultaneously, violently flushing the wastewater through the main, and carrying with it the accumulated silt and sediment.