Airlift Pump has a series of bubbles in the vertical pipe as shown in the schematic above. There is a slippage of water and bubble in the pipe. Even if, the amount of air is increased, the amount of slippage increases, therefore, the Geyser Pump is designed to eliminate this small bubbling, but to hold the supplied air for a while and instantly release a big bubble to the riser pipe. Big bubble with a big buoyancy force ejects the water and sludge in the riser. The velocity of the liquid becomes more than 4 feet/sec. This high velocity clean the pipe by itself and that is why there is no clogging. The suction force is 12 times the one of airlift pump. Thanks to its superb performance, states government like Ohio EPA, Pennsylvania DEP, IndianaDEM are recommending to install Geyser Pump for RAS, WAS and sludge pumping.

Bigger and Continuous Suction by Geyser Hybrid Pump

 

 

 

 

Thank you for your interest in Geyser Airlift Pump.

This page introduces a basic technology background of the Geyser Airlift Pump, the Geyser Ejection Pump and the Geyser Hybrid Pump, which are revolutionizing the pump industries.

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Geyser Pump - The Way to Improve Airlift Pump

Airlift Pump is a superb technology due to its simple structure. However, it has the following weaknesses:

To compensate these points, Geyser Pump has been utilized in various applications so far. Since the patent being granted in 2000, more than 1,500 Geyser Pumps have been installed for Return Activated Sludge (RAS), Waste Activated Sludge (WAS), flow equalization, grit removal, and internal recirculation. Due to the history of non-clogging, Geyser Pump has been recognized as a standard of sludge handling in the market. Geyser Pump guarantees the quickest and the most inexpensive way of renovation of the wastewater treatment plant.

Principle of Geyser Pump

 

 

 

 

 

 

 

 

 

 

 

Closed-Bottom Geyser Pump and Geyser Hybrid Pump outside the Tank

 

 

 

 

 

 

 

 

Airlift Pump has been used for grit removal in common, but the performance was not good enough mainly because the low suction force. In many cases, grit is not pumped and only water is transferred. To solve this problem Geyser Hybrid Pump was developed. This is the combination of airlift pump and ordinary Geyser Pump. Airlift pump continuously creates upward flow in the vertical pipe and intermittently Geyser Pump releases a big bubble. In this manner, grit is efficiently pumped with a smaller amount of supplied air flow. US Filter has been using this pump as a standard design.

 

 

 

 

 

Geyser Ejection Pump for Much Higher Lift

 

 

 

 

Geyser Pump can be installed outside the tank also. Especially in the case of large sewage treatment plants, Closed-Bottom Geyser Pump is commonly used for RAS, as ordinary Geyser Pump cannot be installed in the clarifier with a mechanical scraper. In primary sludge pumping, more suction force is necessary and Closed-Bottom Geyser Hybrid Pump is used.

 

Geyser Pump and Geyser Hybrid Pump are used for relatively low-lift application. In the case of flow equalization and deep-well pumping, the submergence is limited and the lift is 20 feet to sometimes several hundreds feet. For this application, Geyser Ejection Pump is applicable. With the help of a check valve, much higher lift is realized.