Final answer:
Fixture traps are plumbing components that protect against waste contamination by maintaining a small amount of water to act as a seal, preventing sewer gases from entering the building through the plumbing system. They play a crucial role in wastewater treatment facilities, where they remove contaminants and securely contain waste to protect the environment.
Step-by-step explanation:
Fixture traps in a plumbing system are essential components that protect against waste contamination. These traps act as barriers, preventing backflow of harmful gases and debris from wastewater into the living environment. The function of these fixture traps is to maintain a small amount of water as a seal to stop sewer gases from entering the house or building through the plumbing system.
For instance, wastewater treatment facilities, such as those shown in Figure 15.6, are designed to remove contaminants from wastewater, like plastic bottles, cans, rocks, and sticks, using a functional tool known as a bar screen. If these large items are not eliminated, they can damage equipment in the treatment plant and contribute to waste contamination.
In earlier times, flush toilets were invented to handle waste disposal, but the waste was often dumped into rivers used for drinking water and bathing, leading to a high risk of contamination. Today, modern sewage and plumbing systems, including fixture traps, have significantly improved sanitation practices and have helped protect public health and the natural environment from the risk of waste contamination.
Learn more about Fixture Traps