The clarification process is a crucial step in wastewater treatment, distinguishing itself from filtration by operating continuously to separate water from solid particles suspended within it. Unlike the batch filtration achieved with filter presses, clarification is an uninterrupted method. Matec provides custom-designed decanters, offering both vertical and horizontal models made from durable stainless steel or concrete to suit varying industrial needs.
Matec’s vertical decanters rely on static decantation, allowing natural sedimentation of solids. As solid particles (mud) settle at the bottom, clean water rises to overflow into the drainage system at the top, where it’s directed to a clean water tank. The vertical thickener’s design, especially the water column created by the tank, presses on the sludge to achieve the desired thickness. This process is enhanced with a flocculant (polyelectrolyte) to speed up sedimentation. The cone’s angle optimizes sludge compaction, while the upper cylinder provides additional space for storage.
A mud sensor can also be installed at the bottom of the silo, activating the discharge valve only when the sludge reaches the required density, thus enhancing automation and efficiency.
For large-scale water flows, horizontal decanters offer a practical solution. They have a lower profile with an upper sludge thickening system, making them ideal for expansive applications. Horizontal thickeners often come in stainless steel for mid-to-large sizes, with concrete used for the largest models. Similar to vertical decanters, the horizontal thickener works on a decantation principle, with the addition of a rotating rake that stirs the sludge, pushing it to the bottom for discharge.
Automatic discharge adjustments are based on the rake’s effort, maintaining the desired sludge thickness. Sensors trigger the discharge valve, sending sludge to the next stage for further processing.
For larger operations, Matec’s horizontal rake thickeners are recommended when a vertical decanter would require a height greater than 9 meters. Matec offers horizontal thickeners up to 24 meters in width, making them an optimal choice for large-capacity wastewater treatment needs.
For industries in need of reliable and efficient continuous water clarification, Matec’s decanter systems provide tailored solutions to meet a range of operational demands. Contact ChemREADY to learn more about selecting the right Matec decanter for your needs.
Continuous water clarification is a process that separates water from suspended solids continuously, unlike batch filtration methods. It helps achieve clear water and concentrated sludge for easier disposal.
Matec offers both vertical (silo) and horizontal rake decanters. Vertical decanters are ideal for compact setups, while horizontal decanters are best for high-flow applications.
Vertical silo decanters rely on static decantation, allowing solid particles to settle naturally. The clean water overflows at the top, while settled sludge collects at the bottom and is discharged when it reaches the required thickness.
Horizontal rake thickeners are recommended for large-scale applications where vertical decanters would need to exceed 9 meters in height. They handle higher water flow rates effectively.
Matec decanters provide efficient solid-liquid separation, durable construction, automation with sensors, and the flexibility to handle various sludge types, making them ideal for continuous clarification in wastewater treatment.
