Waste Water Reclamation Plant One | Bar Screen

Bar Screen

The first step in the process is screening all of the water. That water passes through a bar screen assembly. This allows the water and organics to pass through while rags, trash, and large objects are caught by the metal bars. When the bars start to plug because they have collected so much trash, an automatic rake comes down to collect the solids and takes them to a dumpster for removal to a landfill.

Sampling and Measuring
The influent is sampled automatically every 30 minutes and this is stored in a refrigerated container until it is taken to our laboratory for analysis. The water also flows through a flow measurement device so we know how many gallons of water we are processing. The influent flow also has a constant monitor for pH. This device tells us immediately if anything is too acidic or alkaline is coming into the plant. By knowing how many gallons come into the plant and what the concentration is of the pollutants, we can calculate the loading to the plant and we adjust the various plant process based on our loadings.

Pumping
The water next passes to wet wells where most of the water is pumped up into the plant for processing. During severe rain events, some of the flow is pumped 1/2 mile from the plant to an excess flow lagoon where it is treated prior to discharge, but during normal conditions the flow proceeds to the primary clarifiers.