Green Dome Odour Filter for Pump Stations and Sewer Vents
Hydrogen sulphide escaping from sewage pump stations, sewer vents, and air release valves generates persistent odour nuisance at concentrations far below what occupants can tolerate. A green dome odour filter intercepts displaced air through a passive carbon bed, adsorbing H₂S and VOCs before they reach the atmosphere without power, fans, or operator input.
We deliver the Green Dome odour filter, a passive, low-maintenance carbon bed system ideal for pump stations, ARVs, sewers and tanks to neutralise H₂S. The range covers buried base, above-ground ARV dome cover, SCADA-connected, and multi-diameter configurations for residential pump stations through municipal sewer infrastructure.
At Dutco Tennant LLC, we source premium Green Dome units from globally recognised manufacturers and supply them across municipal wastewater, sewerage, and infrastructure projects throughout the UAE and GCC.
Why This System Is Specified First
- Hydrogen sulphide removal occurs passively as pump station displacement pressure pushes odorous air through the carbon bed, with no power connection or active assistance required at any installation point
- Carbon filters formulated for high-humidity sewage airstreams retain full adsorption capacity where standard carbon beds fail prematurely in the moisture-laden conditions inside wet wells and pump stations
- A simple dipstick blackens progressively as the H₂S front rises through the bed, providing advance warning of carbon exhaustion without instruments, sensors, or testing equipment
- Corrosion-resistant fibreglass and plastic construction eliminates the deterioration risk present in metal-bodied systems exposed continuously to H₂S and moisture at sewer installations
- Partially buried base module limits street-level visibility to the low-profile dome top, minimising visual intrusion at residential and urban installations
System Capabilities Worth Knowing
- Dual Carbon Layers: SHM carbon at the base targets H₂S and mercaptans; VOC carbon at the top captures volatile organic compounds, addressing the full odour spectrum in a single unit
- Low Back Pressure: Wide diameter combined with shallow bed depth keeps resistance on the pump station minimal, ensuring displaced air exits through the carbon bed rather than finding a leakage path
- Clean Carbon Handling: Media supplied loose in bags or pre-packed in mesh replacement bags allows carbon change-out without direct contact with spent material
- ARV Cover Variant: Thin-footprint dome cover encapsulates above-ground air release valves directly, combining spill containment and odour treatment at a single installation point
- SCADA Option: Battery-powered cellular alarm module integrates with existing operator networks without mains power, suitable for remote ARV locations without grid access
Types
Standard Buried Base Green Dome
A standard green dome odour filter uses a two-part fibreglass body with a partially buried base module connected to the pump station by a sloped self-draining inlet duct, keeping condensate out of the carbon bed.
- Anti-flotation flange locks the base module in position after backfilling, preventing uplift under groundwater pressure or wet weather conditions
- Top module lifts off for carbon inspection and replacement without excavation, tools, or confined space entry, keeping servicing quick and straightforward
- Suitable for standard residential and municipal pump stations requiring passive odour treatment at the point of air displacement from the wet well
Above-Ground ARV Dome Cover
An above-ground activated carbon odour dome fits directly over an existing sewer air release valve, containing intermittent H₂S bursts and passing them through an internal carbon bed before discharge to the atmosphere.
- Fits within the existing ARV footprint with no excavation, civil works, or pipe modification required, making it the fastest retrofit odour solution at existing complaint locations
- Provides combined spill containment and odour control at the ARV body, resolving two operational risks within a single low-profile enclosure
- Blackened dipstick monitoring applies identically to the ARV dome variant, keeping inspection procedures consistent with the buried base unit across an operator's installed fleet
SCADA-Connected Green Dome
A SCADA-connected odour filter for sewage adds a battery-powered cellular alarm module to the ARV dome cover, transmitting status alerts to the operator's network from remote sewer locations.
- Operates entirely on battery power without mains connection, covering remote installations where grid power and communications infrastructure are unavailable
- Integrates with existing SCADA platforms via standard cellular protocols without additional gateway hardware or software development
- Alerts operators to abnormal conditions before odour complaints or spill events affect surrounding residents or public areas
Multi-Diameter Configuration
A multi-diameter carbon odour filter configuration scales dome diameter to match the air displacement volume of pump stations and sewer structures across a wide range of catchment sizes.
- Smaller diameter units suit low-flow residential connections where compact footprint and minimal carbon volume keep capital and replacement costs low
- Larger diameter units maintain adequate carbon contact time at high-flow municipal stations where greater air volumes are displaced on every pump cycle
- Identical two-part construction, carbon format, and dipstick monitoring apply across all sizes, keeping maintenance consistent across mixed-diameter installed fleets
Passive Carbon Bed for Tanks and Manholes
A passive low-maintenance sewage odour control unit adapts the carbon bed to vented tanks, manholes, and wet well covers where odorous air escapes through a vent rather than a pump displacement cycle.
- Mounts on the vent outlet without modifying the existing tank or manhole structure beyond connecting the vent pipe to the unit inlet
- Treats all air passing through the vent during pressure fluctuations inside the structure, requiring no active extraction or fan assistance at any operating condition
- Suitable for sludge storage tanks, grease trap vents, and any covered sewage structure with an existing vent requiring odour treatment
Standout Features & Benefits
Fully Passive, Zero Running Cost
- No motor, fan, heater, or electrical connection is required at any point, eliminating energy costs and electrical maintenance across the full service life of the installation
- Pump station pressurisation during filling drives displaced air through the carbon bed without active assistance, making the system inherently reliable at unmanned locations
- Carbon filter odour control with no moving parts removes all mechanical failure modes, eliminating the unplanned call-outs that affect fan-driven and chemical scrubber systems
Straightforward Carbon Management
- Annual dipstick check gives sufficient advance notice to plan carbon replacement before H₂S breakthrough, avoiding odour incidents between scheduled inspection visits
- Bagged replacement media avoids direct handling of spent carbon, keeping the change-out clean, safe, and achievable by a standard maintenance operative
- Odour control filter carbon is available to order as required with no minimum contract, service agreement, or specialist contractor needed for routine replacement
Robust Low-Profile Construction
- Fibreglass body resists impact, UV exposure, and continuous H₂S and moisture exposure without surface treatment, protective coating, or scheduled structural inspection
- Buried base profile reduces street-level visibility to the dome cap only, meeting visual amenity requirements at residential streets, public parks, and urban open spaces
- Activated carbon odour dome construction withstands vehicle over-run and incidental impact without cracking or carbon bed disturbance at kerbside and footpath installations
Permanent Odour Elimination
- Activated carbon permanently adsorbs H₂S and VOC molecules within its pore structure rather than diluting, masking, or converting them to secondary odorous compounds
- Carbon odour filter performance reduces outlet H₂S concentrations to at or below the odour detection threshold, eliminating community complaints immediately after commissioning
- Low-maintenance sewage odour control performance is sustained across the full carbon bed life with no adjustments, replenishment, or operational intervention between replacement cycles
Application Areas
Sewage Pump Stations
- Buried base units treat air displaced from the wet well on every pump cycle, eliminating H₂S release at street level from residential and municipal pump stations
- Short buried duct connection to the existing pump station structure requires no civil modification, cover slab alteration, or operational shutdown during installation
- Green dome odour filter units resolve odour complaints at pump stations immediately, without relocating, upgrading, or modifying the pump station itself
Sewer Air Release Valves
- ARV dome covers encapsulate above-ground sewer air release valves, treating intermittent H₂S bursts through an internal carbon bed without pipe modification or system shutdown
- Carbon filter odour control at ARV locations addresses the most common community odour complaint source on pressurised sewer mains at the lowest installation cost
- SCADA-connected variants provide remote operational visibility at ARV locations that cannot be inspected frequently, alerting operators before conditions escalate to complaints
Tanks, Wet Wells, and Manholes
- Passive units mount on tank and manhole vent outlets, treating odorous air at the source without active extraction, power supply, or modification to the existing covered structure
- Odour filter for sewage units at wet wells upstream of treatment plants protect plant staff and neighbouring properties during periods of high organic loading in the collection network
- Compact passive units at covered structures in public spaces contain odour without infrastructure visible to the public beyond the small dome cover at the vent outlet
Municipal and Residential Sewer Networks
- Municipal operators install units systematically across pump station and ARV networks to eliminate odour nuisance points identified through community complaints or H₂S monitoring programmes
- Residential pressure sewer schemes use small-diameter units at individual property pump stations where odour from single connections affects immediate neighbours in high-density areas
- Hydrogen sulphide removal at collection system structures protects concrete and metal assets from H₂S-driven corrosion that accelerates structural deterioration and shortens infrastructure service life
