1Flow Control Tank
Sludge feed is regulated with the overflow pipe, returning excess volume to the sludge storage tank.
Process Flow
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VOLUTE™ Dewatering Press without Sludge Conditioning Tank
2Thickening Flocculation Tank
Polymer flocculant and sludge are stirred and mixed, forming floccs suitable for VOLUTE™. Then, the built-in thickener in the tank instantly thicken the sludge.
3Cylinder Unit
Sludge is instantly thickened at the thickening zone in the precedent stage, and dewatered at the dewatering zone in the subsequent stage under increasing inner pressure.
*Thickener contains no dewatering zone.
4Discharge Outlet for Dewatered Cake /
Discharge Outlet for the Thickened Sludge
Further pressure is applied from the outlet side with the End Plate, discharging dewatered cake with 15% or higher solid content.
With a thickener, thickened sludge is discharged.
*Thickener is not equipped with End Plate.
VOLUTE™ Dewatering Press with Sludge Conditioning Tank
1Sludge Conditioning Tank
Additional chemical such as polyferric sulphate can be mixed by pump.
2Flow Control Tank
Sludge feed is regulated with the overflow pipe, returning excess volume to the sludge conditioning tank.
3Flocculation Tank
Polymer and sludge are stirred and mixed, forming flocks suitable for VOLUTE™.
4Cylinder Unit
Sludge is instantly thickened at the thickening zone in the precedent stage, and dewatered at the dewatering zone in the subsequent stage under increasing inner pressure.
5Discharge Outlet for the Dewatered Cake
Further pressure is applied from the outlet side with the End Plate, discharging dewatered cake with 15% or higher solid content.
VOLUTE™ Dewatering Press without Sludge Conditioning Tank/Thickener
1Flow Control Tank
Sludge feed is regulated with the overflow pipe, returning excess volume to the sludge storage tank.
2Flocculation Tank
Polymer flocculant and sludge are stirred and mixed, forming floccs suitable for VOLUTE™. Then, the built-in thickener in the tank instantly thicken the sludge.
3Cylinder Unit
Sludge is instantly thickened at the thickening zone in the precedent stage, and dewatered at the dewatering zone in the subsequent stage under increasing inner pressure.
*Thickener contains no dewatering zone.
4Discharge Outlet for Dewatered Cake /
Discharge Outlet for the Thickened Sludge
Further pressure is applied from the outlet side with the End Plate, discharging dewatered cake with 15% or higher solid content.
With a thickener, thickened sludge is discharged.
*Thickener is not equipped with End Plate.