Passavant-Geiger GmbH
About
Passavant-Geiger GmbH, headquartered in Aarbergen near Frankfurt am Main and employing approximately 300 people, operates under the three brands Passavant, Geiger, and Noggerath as part of the Aqseptence Group. The company provides one of the water industry's broadest equipment portfolios spanning water intake screening, mechanical pre-treatment, biological treatment, advanced filtration, clarification, and flow control. For water intake applications, the Geiger brand supplies coarse and fine bar screens, travelling band screens, the MultiDisc system, fish protection technology, corrosion protection for seawater environments, and Johnson Offshore Intake Systems (JOIS) for submerged passive screening. In mechanical pre-treatment, the Passavant brand offers the multi-rake bar screen KUR series (KUR-Defender, KUR-C, KUR-HD, and KUR-S), the cable-operated COB screen with over 50 years of field history, and the KRC climber screen. The Noggerath brand contributes the PSS step screen, CF Centre-Flo band screen, BS continuous belt screen, RSI-DD and RSI-DF rotary drum screens, RSH-I and RSH-E rotary drum screens, RSH-M/MG micro-screening drums, NSI-T spiral sieve, NSI-V vertical sieve, OVF overflow screen, and RBS-RED rotating bar screen. Screenings handling includes the NWP/NSP wash press, SCD spiral compactor, and SC/SCT spiral conveyor. Grit treatment encompasses circular and longitudinal grit washers (GWC, GW/GWL), grit classifiers (GS), and vortex grit removal (GCC-V). The TOP/TOP-F combined unit integrates screening, dewatering, grit separation, and optional FOG removal. For biological treatment, Passavant supplies fine-bubble aeration (Roeflex and Bioflex diffusers) and surface aerators (Mammutrotor 700–1000 and Mammutrotor Lago). Advanced treatment includes CarbonExtract PAC dosing, GAC filtration, cloth filtration (MCF), and Horizandr horizontal filtration. The company also manufactures circular and longitudinal tank scrapers, the hydrograv Adapt clarifier optimization system, and a complete line of shut-off devices including penstocks, sluice gates, swing check valves, and stop plates, plus submersible and vortex pumps.
Key Products
Heavy-duty bar screens for removing large debris from water intakes at power plants, desalination facilities, and municipal headworks
Fine screening systems for smaller debris removal at water intakes and treatment plant headworks
Continuous-belt and multi-disc screening systems for high-volume water intake protection, removing debris from seawater and freshwater sources
Fish-friendly intake screening systems that prevent aquatic organisms from entering water intake structures
Multi-rake bar screen series for coarse and fine screening in wastewater treatment, with variants for standard, heavy-duty, and low-maintenance applications
Front or back-raked climber screen for reliable coarse and fine screening in wastewater channels
Robust cable-operated bar screen with over 50 years of proven operating experience in wastewater screening
Step-type screen available in channel or tank configurations for fine screening of wastewater
Fine and ultra-fine screening band screen for high-efficiency solids removal in wastewater treatment
Overflow-type screen for stormwater and combined sewer overflow screening applications
Compact spiral screen combining fine screening, dewatering, and compaction in a single unit
Vertical-orientation spiral sieve designed for pump sumps and underground chambers where space is limited
Range of rotary drum screen configurations for fine screening and filtration in wastewater and process water treatment
Compact dual-drive rotating bar screen for screening applications requiring reliable solids removal
Belt-type continuous screen with over 35 years of proven performance in municipal and industrial wastewater screening
Washing and pressing system for screenings that reduces volume, weight, and organic content for lower disposal costs
Combined conveying, dewatering, and compacting system for screenings in a single spiral unit
Enclosed spiral conveyor for transporting screenings, grit, and dewatered solids
Circular configuration grit washing system that removes organic content from grit to produce clean, drainable material
Longitudinal configuration grit washer for washing and classifying grit from wastewater treatment processes
Grit classification system that separates and washes grit from wastewater for disposal or reuse
Circular grit removal chamber for effective separation of grit and heavy solids from wastewater
Vortex-type grit removal system that uses centrifugal action for efficient grit separation without moving parts
Combined mechanical pre-treatment units integrating screening, grit removal, and grease separation in a single compact installation
Receiving station for septage and tanker-delivered sludge, with integrated screening and grit removal
Membrane diffuser aeration system for activated sludge tanks providing high oxygen transfer efficiency with intermittent operation capability
Horizontal shaft surface aerator for biological wastewater treatment, generating oxygen transfer and circulation in aeration tanks
Surface aerator designed for pond-style treatment plants and small conventional plants, providing circulation flow and aeration
Powdered activated carbon dosing system for micropollutant removal from wastewater, enabling trace substance elimination
Advanced cloth disc filtration system for tertiary and advanced wastewater treatment, achieving high solids removal efficiency
Granulated activated carbon filtration system for adsorption of dissolved contaminants and micropollutants in advanced treatment
Patented horizontal filtration technology for advanced wastewater treatment providing high-efficiency particle removal
Adaptive hydraulic optimization system for final clarifiers that improves discharge quality and increases treatment capacity
Robust scraper bridge systems for circular sedimentation tanks, removing settled sludge and floating material
Scraper systems for rectangular sedimentation tanks handling large basin widths for primary and secondary clarification
Scrapers specifically designed for grit chambers to clear sedimented grit and floating matter including oil and grease
Four-sided sealing shut-off gates available in large dimensions for flow control in water and wastewater infrastructure
Three-sided sealing gates for regulating water levels and flow in treatment plant channels and tanks
Four-sided sealing swing check valves preventing reverse flow in water and wastewater pipelines
Three-sided or four-sided sealing stop plates for isolating channels and tanks during maintenance
Submersible pump systems for wastewater lifting and transport in treatment plants and pumping stations
Vortex impeller pumps designed to handle solids-laden wastewater without clogging
Protective coating and material systems for seawater intake equipment in corrosive marine environments
Submerged passive intake screening systems for offshore and coastal water intake applications
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