Sewage pumps can handle the transfer of both human and animal waste.
Trash pumps, diaphragm pumps, submersible sewage shredder pumps, and centrifugal sewage pumps are all examples of pumps that fall into this category. These pumps can handle a water-to-soft-sewage material ratio of up to 85 percent, but no more solids diameter than the pump specifies.
What is a sewage pump?
A sewage pump is a device that transports sewage liquids and solids from one location to another. In most residential applications, sewage, which may contain soft solids up to 2 inches in diameter, is pumped from a sewage basin to a sewer system or a septic tank. At the lowest point of the sewage basin, a sewage pump is installed.
Because the pump is usually submerged, it is also known as a submersible sewage pump. Automatic, manual, or dual-mode sewage pumps are available. A piggyback plug on a dual mode pump allows it to be used as either manual (the pump bypasses the switch and is plugged directly into the socket) or automatic (the pump is plugged in through the floating switch and works only when the switch is activated).It is generally not recommended to use a manual sewage pump inside a sewage basin due to the risk of sewage overflow.
Sewage pumps are centrifugal pumps with a unique design that allows solids to pass through without clogging the pump. When you turn on the pump, the motor begins to rotate the impeller, creating pressure that pushes water into the impeller and into the discharge pipe.
The sewage pump is powered by a 10-to-25-foot electric cord. The voltage can be 115, 230, 460, or 575 volts depending on the model. The pump housing, which houses the motor and impeller, is made of cast iron and is designed for long-term use.
Types of sewage pump:
Effluent Pumps – Effluent pumps are the most common pumps found in small on-site systems. They are intended to pump effluent, which is effluent that flows from a septic tank. Because the solids have settled in the septic tank, the effluent is a relatively clear liquid. Because effluent pumps do not have to handle sewage solids, they can pump at higher levels and with greater efficiency than other types of sewage pumps.
Solid Handling Pumps – These pumps, also known as sewage ejector pumps, are designed to pump raw sewage. Because raw sewage contains too many solids for most pumps, only solids-handling pumps should be used when pumping raw sewage.
Grinder Pumps - A grinder pump is similar to a solid-handling pump. It is capable of pumping raw sewage. The grinder pump, on the other hand, has rotating blades, similar to garbage grinders that cut and grind the solids into small particles before the sewage is pumped.
Transfer pump for raw sewage:
A primary bar screen is installed at the inlet of the collection tank. This is used to keep plastics and other non-biodegradable solids out of the collection tank.The sewage is dozed with microorganisms that are introduced by dozing and help to break down the sludge content. This method effectively eliminates the need for specialized sludge handling systems. The tank is also kept aerated to prevent septicity and to control odor.
Pumps for Lifting Raw Sewage:
· There are two pumps that are identical. Controls ensure that only one pump is operational at any given time.
· Each pump delivers sewage at a slightly higher rate than the STP's actual flow rate.
· Both pumps have separate suction pipes. The inlet pipes must extend almost to the tank's bottom and must not have foot-valves.
· A TT-shaped header connects the delivery pipes from both pumps.
· The bypass pipeline returns the sewage to the tank.
Valves installed on each of the three pipelines serve different functions:
The bypass line valve is set to "waste" the working pump's excess capacity. When the corresponding pump is removed for repair, the valve on the delivery pipe is closed. This prevents sewage from being delivered by the other pump from exiting.
We at Netsol Water can manufacture pumps as per customer’s requirements.