The heart of every sequencing batch reactor (SBR) system is the decanter. The decanter is responsible for removing clarified effluent from the basin during the decant phase of the sequence cycle.
The Wagner Fluid SBR by Ram Industrial Services is an advanced SBR technology that may be designed for batch or continuous inflow. All SBR processes are operated using defined cycle times adjusted to variable flow conditions. Each cycle typically consists of four main phases; fill, aerate, settle and decant. The basin may be aerated fill or anoxic fill during the first half of the cycle. After the aeration phase, the system goes into a settling phase where liquid/solids separation occurs. In the final step, clear water is decanted out of the basin.
The Wagner Fluid System decanter is installed on the basin wall supported by a stainless steel fabrication, grating and railing that provides a stable platform for maintenance and plant operators. The decanter is lowered and raised using an electro-mechanical jack screw actuator. The actuator moves the decanter between two set point elevations from the “park” position to the bottom water level (BWL). The decanter parks above top water level during the aeration and settling phases of the cycle, thereby eliminating any possibility of solids carryover during these periods.