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After outlining the Storm Water system's configuration and function, it is time to explain the pipes that are often adjacent to storm water lines. Sewage refers to waste water and excrement, any water that has been flushed from showers, sinks, toilets, laundry and commercial waste. Commercial waste is generated by industrial businesses and is often referred to as trade waste. Trade waste often contains more contaminates than residential waste, like chemicals, metals, fats and detergents. These additional contaminants force businesses to obtain permits for their sewage production, so cities can monitor and plan treatment processes.
It is estimated that when we take into account industrial uses, the United States create 375 gallons of waste per person per day. This is a lot of water to be managed! The water enters a network of pipes underground, located beneath roads and lawns. There are access points along the way through manhole covers for the purpose of inspection, inspections performed by various Deep Trekker remotely operated vehicles. It is even more important that these pipes are maintained because of the nature of the water. If sewage were to leak from these pipes, it would most likely seep into the water table, contaminating drinking water sources far more severely than storm water leaks would.
These pipes then distribute the waste water to larger pipes and tunnels, often referred to as trunk sewers. These are managed by the treatment facility. The tunnels are on a slight downward slope in most cases to allow gravity to pull the water toward the facilities. Often along the way are pumping stations, that move water at thousands of gallons a minute toward treatment facilities on the surface or through more pipes to another pumping station.
Once at the treatment facility, there are a series of stages the sewage goes through before it is recycled back into the water network. There are 3 Stages of Treatment: Primary, Secondary and Tertiary. Within these stages are a few steps before the sewage moves on to the next. The goals of treatment is to remove the following impurities:
Here are the ways that treatment facilities remove these impurities:
Before and during the process, the lagoons that contain the sewage are covered and suppress the odor. Along with suppression of the odors, the methane gas is collected. This methane gas is used to power the plant's aerators.
Secondary Sedimentation also takes place at this stage with additional settling tanks that collect up to 85% of the suspended solids and BOD.
The most important factor of a water treatment facility is consistency; if water is not being treated properly and is discharged back into our environment, there are dire consequences for our health and the environment.
The first step to consistency is maintaining the structures that contain the water to ensure no seepage or break in the system.
Routine inspection is the most cost effective way to maintain a structure and using Deep Trekker ROVs to inspect these systems is the most affordable solution for routine inspection.
Make your sewer system inspections affordable and safe with ROVs
Regular equipment and infrastructure inspections - including underwater inspections - are crucial to maintaining optimal operations. With the use of a Deep Trekker remotely operated vehicle (ROV), users can perform safe, accurate and rapid inspections on submerged infrastructure to safely and conveniently capture faults before they become major issues.
Contact us for more information about how we can help maintain your water treatment facilities.
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