Increasing Focus on Wastewater Treatment to Tackle Water Scarcity Grabs Pump Manufacturers’ Attention

Space-age technologies are transmuting diverse industries, including pumps, to accurately fit to the fluctuating end user demands. Escalating energy expenses are compelling pump manufacturers to embrace new business designs in order to improve product inspection and counter environmental impact in sync.

Organizations across the world are focusing on wastewater treatment, citing the threat of water scarcity. The rising vitality of water and wastewater treatments is motivating pump manufacturers to tap white spaces in target applications. With natural resources on the edge of depletion, pump manufacturers are developing products with enhanced efficiency, and reduced fuel expenses.

Adopting Variable Drive Frequency Technology for Slurry and Sludge Pumping Applications

Variable drive frequency (VDF) pumps alter the frequency of the power supply, permitting exact and immediate adjustments to pump operation. Pumping water is a static method following stable chemical properties of water during operation. On the other hand, slurry and sludge are unevenly mixed. The viscosity changes frequently, leading to issues while pumping.

VDF technology adjust the working of the pumps on the spot, compensating for the fluctuations in operational load without the need for interruption. As a consequence, damages to the machine are prevented, while the pumps operate at maximum efficacy.  With the advent of digitalization, on-board smart chips and computers control VFD pumps on the fly, reducing the need for input from pump operators.

Centrifugal Pumps for Treating Hazardous Liquids

Centrifugal pumps are emerging as the product of choice owing to straightforward design and operation. The pumps contain diverse range of capacity and head, each generating a relevant flow rate. In addition, centrifugal pumps are beneficial for pumping low-viscosity liquids. The pump chamber and the motor are split by the air gap to disallow transfer of heat.

Absence of a drive seal in centrifugal pumps eliminates frictional loss, noise, wear & tear, and leakage risks. As such, centrifugal pumps are a great fit for applications involving toxic substances. After pumping, the entire fluid is separated from the pump drive, making the machine highly efficient – complete utilization of motor power. Further, the magnetic coupling avoids damages to the centrifugal pumps.

Positive Displacement Pumps for Handling Sludge in Wastewater and Precise Dosing in Chemical Applications

Although, centrifugal pumps find favor with myriad applications, positive displacement (PD) pumps are preferred for handling variety of sludge present in wastewater following the ability to pump of high viscosity, and thick materials. PD pumps offer smooth and uniform flow rate for process equipment. Accompanied by their metering abilities, PD pumps are utilized in belt filter press feed, and screw press feed.

The ability of positive displacement pumps to reverse make them suitable applications found in wastewater, such as truck loading & offloading, and plugged line. Further, PD pumps are self-priming, allowing them to pull suction lifts. PD pumps, owing to high efficiency and precision, are highly preferred for dosing applications. Combined with magnetic coupling, positive displacement pumps for temperatures up to 500 °C.

Partial Emission Pumps for Oil & Gas Operations

Partial emission pumps (PEP) easily cater to the low flow rate, high head process requisites sans the need for increased velocity solutions. Absence of gearbox in the machine offers easy maintenance. The desired output speed in PEP is achieved by increased impeller dimensions in lieu of increased rotating velocity. Low rotating speed offers low NPSHr (Net Positive Suction Head Required) properties throughout the working curve.

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Open impeller design and abundant clearances enable moderate solid contents in the process liquid, and significantly decreases the friction between the casing and the impeller. PEPs eliminate impeller backflow, avoiding erosion, and noise. Further, the pumps decrease radial load to tackle shaft deviation, and high vibrations.