EPA Compliant · Up to 95% Reduction · Waste & Recycling
Fixed atomising nozzle systems that neutralise odour compounds at the point of generation, designed to satisfy EPA licence conditions and resolve community complaints at waste transfer stations and recycling facilities across Australia.
Under the EPA Protection of the Environment Operations Act, odour emissions from waste and recycling facilities are a regulated matter. A licence condition requiring odour management controls, a neighbour complaint that escalates to the EPA, or an inspection that finds inadequate controls in place carries real operational and financial consequences.
youmist installs fixed atomising nozzle systems that neutralise odour at the source, at the tipping floor, processing area or receiving bay, before it becomes airborne and reaches your boundary. Using neutralising chemicals and odour-absorbing agents atomised to 5-10 micron particles, our systems modify the compounds that cause odour rather than simply masking them.
Your EPA licence requires documented odour management controls. We design, install and provide the compliance documentation to satisfy the condition on handover.
Odour complaints that reach the EPA become an enforcement matter. A fixed at-source system is the most reliable way to demonstrate proactive management and resolve complaints before they escalate.
The difference between an odour masking system and a true neutralisation system is where the treatment happens. youmist systems treat odour at the point of generation, so it never becomes a boundary problem in the first place.
We assess the facility to identify primary odour generation points, active tipping areas, processing conveyors, stockpile zones and receiving bays. System design targets these specific sources rather than attempting to treat the whole airspace.
High-pressure nozzle arrays installed at source locations, tipping floor overheads, wall-mounted arrays above conveyors and receiving areas. Agents are atomised to 5-10 microns, producing a fine mist that intercepts and neutralises odour compounds before they disperse.
Two agent types are used depending on the odour profile: neutralising chemicals that block odour perception, and odour absorbers that chemically modify the compounds causing the odour. Systems are automated by timer, activating during operational hours with no manual intervention required.
Not all odour problems are the same. The agents we use are selected based on the specific compounds your facility generates, ensuring neutralisation rather than temporary masking.
Neutralising agents are formulated to intercept and chemically react with odour compounds in the air, blocking the sensory receptor response that causes the perception of odour. Effective across a wide range of organic waste odour profiles including hydrogen sulphide, ammonia and volatile organic compounds.
Odour absorbers work by chemically modifying the molecular structure of the compounds responsible for odour generation, rather than masking them. The result is a sustained reduction in odour output from the treated area, effective across multiple organic odour compound types.
Active tipping floors are the primary odour source at waste transfer facilities, the point where incoming waste is received, sorted and transferred. youmist installs fixed overhead nozzle arrays above active tipping areas, atomising neutralising agents directly into the odour plume at source. Systems are automated to activate during tipping operations and can be zoned by tipping bay to minimise agent consumption.
MRF and resource recovery facilities generate odour across multiple process areas, receiving bays, sorting lines, residuals stockpiles and compaction areas. youmist designs multi-zone systems targeting each source area independently, with separate agent delivery and automation for each zone. Co-installation with dust suppression systems is available for facilities with combined dust and odour requirements.
A major Sydney metro waste transfer facility was receiving escalating community complaints about odour reaching neighbouring residential properties, complaints that had been referred to the EPA and were at risk of becoming a licence enforcement matter.
youmist designed and installed a dual-function system, fixed atomising nozzle arrays delivering neutralising agents above the active tipping floor for odour control, co-installed with a dust suppression misting system for PM10 management. Both systems operate on timers triggered during active tipping operations.
The combined system addressed both the EPA odour licence condition and the dust boundary condition simultaneously, reducing the facility's compliance risk across two regulatory requirements in a single installation.
Every youmist odour control system is designed and documented against the specific EPA licence conditions and regulatory requirements of your facility, so that the system satisfies your regulator, not just your neighbours.
Systems designed to satisfy EPA licence conditions for odour management at waste and recycling facilities. Full compliance documentation provided on handover, ready for submission to the EPA.
Design documentation, agent specifications, system operating records and commissioning data provided in a format suitable for EPA licence compliance reporting.
A documented, installed odour management system is the most effective response to neighbour complaints referred to the EPA, demonstrating proactive management before enforcement action is considered.
Odour masking introduces a stronger fragrance to cover the odour, which does not reduce the odour compounds themselves and provides no genuine compliance outcome. Odour neutralisation uses chemical agents that either react with and destroy the odour-causing compounds, or modify their molecular structure so they no longer cause odour. youmist systems use neutralising and absorbing agents that address the source, not the symptom, making them suitable for EPA licence compliance purposes.
Yes, provided the system is designed and documented against the specific condition. youmist designs odour control systems to the requirements of your EPA licence and provides a full documentation package on commissioning, including system design specifications, agent specifications, commissioning records and operating procedures. This documentation is prepared ready for submission to the EPA as evidence of compliance.
Agent selection depends on the odour compounds your facility generates. We assess the site, identify the primary odour sources and, where needed, review odour assessment data to determine the compound profile. Facilities with high-intensity hydrogen sulphide or ammonia sources typically suit neutralising chemicals. Facilities with ongoing background odour from decomposing material often benefit from odour absorbers. Many facilities use a combination of both agents across different zones.
Yes. Co-installation with dust suppression is common at waste transfer stations and MRF facilities where both EPA licence conditions apply. The two systems share infrastructure, pump stations and automation controls, meaning a single mobilisation addresses both requirements. This significantly reduces installation cost and site disruption compared to separate installations at different times.
Yes. Atomising odour control systems require regular agent replenishment as the chemical supply is consumed during operation. youmist offers scheduled maintenance and SLA agreements that include agent replenishment, nozzle inspection and cleaning, pump station servicing and system performance checks. Regular maintenance is also important for maintaining the EPA compliance record over time.
Tell us about your facility, your licence condition and your timeline. We'll come back to you within one business day with a clear plan.
