McLanahan producers various models based on each customer’s specific processing including High-Rate and High-Density Thickeners, as well as Paste Thickeners.
High-Rate Thickeners are generally sized based on hindered settling velocity. They typically have lower sidewalls and lower sludge densities than other types of Thickeners.
Paste Thickeners are generally sized on free settling velocity and sludge retention time. They are built with tall tanks and produce extremely dense underflows with little to no further free water drainage.
For decades, workers at Stevens Creek Quarry dreaded the monthly need to drain and clean out the quarry’s settling pond for its excess slurry tailings. Every 30 to 45 days, the entire operation had to shut down for up to eight days while the pond was cleaned, costing up to $80,000 each cleaning. READ MORE