Pumped water storage in sewage treatment plants

What is a pumped sewage treatment plant?

A pumped sewage treatment plant is a sewage treatment plant with a pump to lift the treated water out and in to the ditch or stream. It is used when a normal gravity discharge cannot be used. This can sometimes happen when the house is on a slight hill.

Can a pumped outlet sewage treatment plant be improved?

An improvement over a pumped outlet sewage treatment plant would be to use a normal gravity outlet system, and send the water into a dedicated final effluent pump station. A final effluent pump station can be fitted with twin pumps and offers a safer solution. It is however more expensive.

What types of pumps are used in wastewater treatment plants?

The most common types of pumps used in wastewater treatment plants are centrifugal, progressive cavity, and positive displacement. These are listed in Table 1 along with their respective applications.

How does a sewage system work?

By Milan Rubcic, Sydney Water A typical wastewater system may comprise of a network of sewers and sewage pumping stations (SPS) that collect and transport sewage from where it is generated to a wastewater treatment plant for treatment. Wherever possible, the wastewater system should be designed to maximise the use of gravity to convey the sewage.

Are sewage pumping stations submersible?

With exception of a few positive displacement, vacuum pumping stations and pressure sewerage systems due to site specific reasons, all new sewage pumping stations constructed within Sydney Water’s area of operation (Sydney metropolitan, Blue Mountains and Illawarra) over the last 25 years were of submersible wet well type.

What is an in-plant pump station?

An in-plant pump station is a facility that consists of pumps and service equipment designed to pump flows from lower to higher elevations to allow continuous and cost-effective treatment through unit processes within the plant.