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| The sewage from houses can contaminate our waters, causing serious water quality problems. It can also back-up into basements, causing property damage and threatening public health. Sanitary sewer system is meant to collect and convey all of the sewage that flows into sewers to a public wastewater treatment plant. |
| Sanitary sewer system includes three categories: |
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Public sanitary sewer |
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Specialized sanitary sewer |
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Building sewage processing facilities |
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| Public sanitary sewers are used by the public. These sewers are built under ground and collect sewage, which is discharged from kitchens, bathrooms and lavatories, to wastewater treatment plant. After being treated in wastewater treatment plant, the water is discharged into rivers or sea. The sanitary sewer system can be divided into following parts: |
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Wastewater treatment plant |
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Pumping station |
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Sewer |
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User’s drainage facility |
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