List of top seven sewer appurtenances:- 1. Manholes 2. Lamp-Holes 3. Drop Manholes 4. Street Inlets 5. Catch Basins or Pits 6. Sand, Grease and Oil Traps 7. Ventilating Shafts. Sewer Appurtenance # 1. Manholes: A manhole is defined as the construction made to connect the ground level with the hole or opening made in the sewer line so that [...]
Following materials are generally used in the construction of sewer: 1. Bricks 2. Vitrified Clays or Stoneware Pipes 3. Cement Concrete Pipes 4. Cast Iron Pipes 5. Steel Pipes 6. Plastic Pipes 7. Miscellaneous Materials. Material # 1. Bricks: Bricks are used for large size sewers because these are cheap and readily available at all places. These sewers are plastered [...]
Sewer joints are of following types: 1. Bandage Joint 2. Spigot and Socket Joint 3. Collar Joint 4. Flush Joint. Type # 1. Bandage Joint: This joint is mostly used for concrete pipes. At the end of the pipe, a hollow is scooped out 25 mm deep, 75 mm under and 75 mm ahead. This hollow is filled with mortar [...]
In this article we will discuss about the design of inverted siphon with the help of a suitable diagram. During laying of sewer lies in a town, at some places, the hydraulic gradient line falls above the ground surface. If there is more depression in the ground and the area is undeveloped or cultivated, sewer line can be laid above [...]
In this article we will discuss about the design of flushing tanks with the help of a suitable diagram. When the gradients of the sewers are flat and the velocity of sewage is very low, the suspended matter of sewage starts settling in the bed of the sewer and causes clogging of sewer lines. At such places where self- cleaning [...]
Storm relief works are of the following three types: 1. Storm Water Overflow 2. Siphon Spillways 3. Jumping Weirs (or Leaping Weir). Type # 1. Storm Water Overflow: These are very common devices, which are used in storm water relief works. It essentially consists of a masonry chamber having one overflow weir. The extra quantity of sewage from main sewer [...]