Wave 811D sludge dewatering
Sludge dewatering with Wave 811D
Abbotsford, BC -- Today we’d like to introduce you to the Wave Separator 811D and explain why it is such a practical choice for many separation processes. The “D” designation indicates that this specific unit is a dewatering system. It is equipped with a dedicated dewatering module. Similar to the standard Wave thickener the 811D uses gravitational forces to separate the liquid from the sludge solids. Eleven columns with oval disks move the material across the separation table in a low-impact, wave-like motion. The liquid drains through the gaps in the wedge wire screen and falls into the filtrate tank below. The solids portion continues to move across the table and subsequently decreases its moisture content.
The dewatering module makes the difference
Now, this is the part where the “D” model stands out. An air actuated dewatering plate allows the operator to create additional back pressure as the materials moves towards the discharge end. The result is a significant dry matter increase. Depending on the plant’s treatment objectives the operator is able to target specific solids content by adjusting the dewatering plate gap.
Especially for separation of larger organic materials the Wave 811D can be used as a screen without the addition of polymer. Especially the treatment of liquid waste at food processing plants is a common application. For fine solid separation, for instance in municipal sludge applications, we recommend the use of polymer and floc tank.
Because of its ability to produce higher dry matter, operators choose the Wave 811D mostly for dewatering applications. The 811D can process up to 100 gpm, whereas the comparable thickener model with similar screen size can process almost four times that volume.