The first image is of the system that removes the gross trash from the wastewater.

The second image is of the unit called the primary clarifier which removes other solids such as sand and other coarse material that passed through the grit removal system. The primary clarifier also removes settled solids from the secondary clarifier that are pumped back to the primary clarifier. The solids from the secondary clarifier act as a settling aid for solids coming into the primary clarifier. These solids are then pumped to the anaerobic digester (not shown here).

The third image is a view of the top of the primary clarifier. The system on top of the clarifier is a rake system that rakes floating solids to a skimmer. The rakes revolve to the bottom of the clarifier and rake solids off the bottom to another sump that pumps to the anaerobic digester (not shown here).

The fourth image is of the biological treatment system. The first row of bioreactors remove Chemical Oxygen Demand (COD) and second row removes Ammonia.

The fifth image is a picture taken between the Chemical Oxygen Demand (COD) reactors and the Ammonia removal reactors. The image also shows a motor with a gearbox that is attached to a long shaft that runs the length of the reactor. Plastic media is attached to the shaft.

The sixth image is a picture of the biologically treated wastewater leaving the Ammonia removal units and flowing to the secondary clarifier. The water contains biological solids which are settled out in the secondary clarifier.

The seventh image shows the plastic media attached to the shaft that was discussed in the paragraph regarding the fifth image. The wastewater is flowing into the basin containing the media. The wastewater contacts the active biological solids growing on the media and COD is removed. There are many plastic media segments on one shaft and the wastewater contacts the biological solids growing on all of them. Biological solids sluff off the media into the water and are removed through the secondary clarifier.

The eighth image shows the secondary clarifier. The solids, which are in the wastewater discussed about in the sixth image, settle out and are therefore removed from the biologically treated wastewater. The water then flows to the river adjacent to the wastewater treatment plant.

The ninth image shows the secondary clarifier with a ramp. Floating solids are removed with this mechanism. Again, the floating and settled solids are pumped to the primary clarifier and combine with the solids discussed about in the second image.