After water has served its many uses, it needs to be collected and transported to the wastewater treatment plant to be treated and returned to the environment. Wastewater flows increase along the collection system toward the treatment plant. When gravity flow is not economically or technically possible, pump stations are used and the pumps are controlled to achieve a stable, secure flow to the wastewater treatment plant.
The closer to the treatment plant you get, the larger the pump stations becomes, in order to handle the increased flows. At the wastewater treatment plant's intake pumping station, or Headworks station, the municipal wastewater network ends. The raw wastewater is then pumped into the wastewater treatment plant's course screens and onto the treatment process.
Combined pump stations are designed to handle the daily wastewater flows as well as stormwater and other surface run-off and are common in many wastewater networks. When designing a combined station, you should consider the normal fluctuations from the sewage network as well as the maximum inflow resulting from storm events. Both these inflow rates can differ widely from each other, and the maximum inflow can be much greater than the normal flow.
Wastewater can be difficult to transport and manage with large amounts of organic solids, rags and other waste matter that challenges wastewater pumps. High demands are placed on reliable pumping, since spills and overflows will cause damage to the environment and result in fines. This is when Flygt can help, with state of the art pump station designs and proven non-clog pumps for tough media and all your specific pumping requirements.
End suction pumps with channel- or open impellers for pumping liquids containing solids.
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