Sewage systems need gravity to treat wastewater in a wastewater treatment plant. What makes excavation difficult is a stone or a flat terrain.
This then makes it an impractical collection of gravity and the pipeline must then be used to treat sewage. Also in some low-lying communities, vacuum conveying wastewater. Pipe sizes vary in diameter. You can also get more details about the water treatment system via ecoseptic
There is what we call the STEP system is also known as Septic Tank Effluent Pumping. Individual home use collection tanks buried to separate the solid and liquid wastes.
The sewage liquid is pumped through a pipe that has a small diameter in the range of 1.5-4 inches to reach the downstream treatment. Pressure is applied in the waste stream to allow the pipe to lie below the ground surface.
Another way to collect waste is to use low-pressure pumps and vacuum systems. A grinder pump is used in a low-pressure system which can be found at the connection points are usually homes and businesses.
An atmospheric pressure differential is also utilized by the vacuum sewer system to encourage more liquid to the vacuum station is centrally located.
Typically, a vacuum sewer station can provide service to nearly 1,200 homes that are cost-effective manner before building another station.
The size and design of the collection system based on the populations involved, flowing in both commercial and industrial establishments, features peaking flow and flow of wet weather.
Some of the factors that affect the inflow and infiltration which includes humidity conditions required in designing these systems.