Learning Center
Grit Classifier Maintenance
The Grit Classifier is a key piece of equipment for most wastewater treatment plants. This equipment is located in the Headworks area of the facility. It receives a grit slurry from the process and through separation and removal action removes the grit from the...
Typical Cost of a Lamella Plate Settler
Lamella Plate Settlers are one of the most important pieces to any water treatment system. Sedimentation is a key process to any water treatment plant. Depending on the process, plant age, and plant size, increasing plant capacity can become costly when upgrading a...
Biosolids Storage Selections: Hoppers, Silos, Bins
Biosolids require storage for all types of materials from dried biosolid to dewatered sludge. When deciding on a biosolids storage solution there are 3 main options; hoppers, silos, and bins. Selecting the right storage solution can help keep a project in budget as...
When to use a Vertical Screw Conveyor
Screw conveyors are compact in design and easily adapt to congested locations for conveyance of materials in a horizontal, inclined, or vertical screw conveyor. Inclined screw conveyors are widely used, however they are not recommended for inclines over 25 degrees....
Slide Gate Actuator for Biosolids Sludge Storage
Some storage vessels are meter discharged to downstream conveyors or pumps; however, a large percentage of hoppers are discharged to truck beds. They are called “Truck Outloading Hoppers", or Systems. Live bottom screws and slide gates facilitate outloading. The...
Should Scum Pipes Rotate in Both Directions?
Scum pipes represent one of the simplest and most economical ways to remove scum and other floating materials from the water surface in a municipal water or wastewater treatment plant. They typically operate intermittently from day to day, either manually or...
Typical Cost of a Vertical Paddle Wheel Flocculator
Vertical Paddle Wheel Flocculators (VPWF) are the most popular and economical flocculator used in water treatment plants. These flocculators are designed with 10 State Standards in mind. Plants are concerned, not only about the cost of the equipment, but also the...
Grit Classifier Internal End Bearing vs External End Bearing
Most grit classifiers employ an inclined shafted screw conveyor that rotates at a quite slow RPM and conveys grit from a hopper up and out of the water and then discharges into a dumpster or container. This shafted screw requires an end bearing assembly at both ends....
Typical Shafted Screw Conveyor Wear Parts
Screw conveyors are available in both shafted and shaftless configurations. The type of conveyor that is best for your application is determined upon the needs of your individual process. For this discussion, we will concentrate on the Shafted Screw...
Wastewater Plate Settlers Case History
Both water and wastewater projects are often challenged to make the most of their process (optimize solids removal) using existing infrastructure. The more population, the greater the need is for liquid solids separation. But, greater population can also mean less...