Chopper Pumps
Integrated knife-chopper pumps for solids maceration in biogas, digester, and municipal wastewater applications.
What are Chopper Pumps?
Chopper pumps cut and macerate solids before pumping, preventing clogging from rags, wipes, and fibrous materials that pass through standard pumps. The integrated chopping mechanism reduces particle size at the pump inlet, protecting downstream equipment and piping. In biogas and digester applications, chopper pumps also improve digestion efficiency by reducing feedstock particle size.
Equipment We Represent
Landia - Submersible and Dry-Installed Chopper Pumps
- Integrated knife/chopper system shreds solids prior to pumping
- Simple, robust design with low sensitivity to dry matter content and sand
- Handles aggressive low-pH liquids including food waste and biogas feedstocks
- Available in submersible and dry-installed stainless steel configurations
- Reference installations: Republic Services (Oroville, CA), UCSD biogas, and numerous municipal lift stations
Applications
Biogas Receiving Pits
Macerating food waste and organic feedstocks for anaerobic digestion
Macerating food waste and organic feedstocks for anaerobic digestion
Digester Feed
Reducing particle size to improve digestion efficiency and biogas yield
Reducing particle size to improve digestion efficiency and biogas yield
Heat Exchanger Recirculation
Preventing fouling of heat exchanger surfaces in digester heating systems
Preventing fouling of heat exchanger surfaces in digester heating systems
Sewage Lift Stations
Protecting force mains from rag and wipe accumulation
Protecting force mains from rag and wipe accumulation
Why Winschel Environmental?
- Proven technology — Landia systems with reference installations in biogas, food waste, and municipal applications
- Solids handling expertise — We understand the difference between chopping, grinding, and maceration for your specific application
- Stainless steel construction — Landia's stainless configuration handles corrosive feedstocks that damage cast iron pumps
- Virginia coverage — Local support for startup, maintenance, and wear part replacement
Dealing with rags, wipes, or fibrous solids in your pump station?
Tell us your application — we'll recommend the right chopper pump configuration.
Contact UsOr call us: (804) 545-3115