Sewerage systems: Types and comparison. Pipes

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Presentation transcript:

Sewerage systems: Types and comparison. Pipes Lecture 8 Sewerage systems: Types and comparison. Pipes

Definition A set of pipe networks, facilities and technical measures, aimed at collection, transportation and treatment of the wastewater from urban, rural or industrial territories, finishing with discharge into a receiving water body.

Wastewater treatment plant General scheme and basic elements of the sewer 1.Sewerage in the building Industrial sewerage 2. Yard sewerage Yard sewerage 3. Sewerage in the street Wastewater treatment plant 5. Net facilities 4. Discharge pipe

General scheme – picture 2

Types of wastewater Domestic Industrial Atmospheric

Types of the sewerage systems Combined Separated Semi-separated

Waste water treatment plant 1. Combined (CSS) One net for domestic, industrial and atmospheric waters Waste water treatment plant Sewer outflows

2. Separated - SSS Net for domestic and industrial waters Net for rainfalls WWTP

3. Semi-separated – Semi SSS Net for domestic and industrial waters Net for rainfalls WWTP Interseptor chambers

Interceptor chamber

Comparison of the 3 types Technical and economical aspects; Sanitary and Hygienic aspects; Maintenance and exploitation