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Transports Sludge with progressive cavity pumps in Wastewater Treatment

Progressive cavity pumps have proven to be an optimal solution for conveying abrasive sludges in wastewater treatment plants due to their outstanding conveyance properties. Equipped with an enlarged inlet hopper and integrated bridge breaker, these pumps are also suitable for conveying solid, dewatered thick sludge. 

Sludge-Containing Media in Wastewater Treatment 

The treatment of sludge-containing wastewater in treatment plants is a central part of wastewater management, encompassing both the cleaning of wastewater and the disposal and processing of resulting sewage sludge. Various types of sludge, which arise during the mechanical, biological, and chemical phases of wastewater treatment, must be efficiently conveyed, dewatered, and disposed of. Pump technology plays a crucial role here, as it must ensure the transport of abrasive, viscous, and solid-containing media at every stage of the process. The varying properties of sludge-containing wastewater pose high demands on the reliability, maintenance-friendliness, and efficiency of the pump systems used. 

Conveying Sludge-Containing Wastewater with Progressive Cavity Pumps 

The sewage sludges generated at various stages of wastewater treatment are reliably conveyed to plant components such as sludge thickeners and digesters using progressive cavity pumps. Mono offers suitable pump series that can handle abrasive flow rates of up to 440 m³/h. 

Mono EZstrip Series

For conveying abrasive types of sludge with a higher water content, such as primary sludge from the preliminary clarifiers, the progressive cavity pumps of the EZstrip series are particularly suitable. In developing the latest pump series, Mono has combined excellent performance data with optimized maintenance-friendliness and efficiency to significantly enhance the economics of the treatment processes. The innovative design of this pump series allows quick and uncomplicated access to the sealing and rotating components without the need to remove the pump from the pipeline system. To prevent blockages and premature wear, twin shaft shredders can optimize the particle size of the primary sludge before it is fed to the progressive cavity pump. 

Mono W Series

For sewage sludges from which a large part of the water has already been removed during the early phases of sludge treatment through chemical and mechanical processes and which need to be directed to digesters for further processing, progressive cavity pumps with an extended inlet cross-section are particularly suitable. The Mono W series is characterized by a funnel-shaped inlet cross-section, which in combination with a conveyor screw can efficiently convey media with a high dry substance content and a flow rate of up to 215 m³/h. With the optional equipment of a bridge breaker, this pump series also enables the conveyance of dewatered thick sludge with a dry solids content of up to 85%. 

Progressive Cavity Pumps and Spare Parts at AxFlow 

As an application- and service-oriented company, AxFlow supports both the selection and application-specific design of progressive cavity pumps. Contact our technical sales team. Benefit from short delivery times for stock process technology and spare parts, as well as from a comprehensive service offer for your pump technology.