WTT Aerated Bays — Take Windrow Composting to the Next Level
Not every organic waste treatment plant is ready to make the leap to in-vessel composting. But that doesn’t mean progress has to wait. With WTT’s Aerated Bays, operators can move windrow composting forward: faster, cleaner and more reliable.
From Open Windrow to Controlled Process
WTT Aerated Bays (Aerated Static Piles) turn an open windrow into a fully controlled composting process. Our modular, forced-aeration system ensures optimal airflow, consistent temperatures, and improved throughput — all with low operational risk and less space requirement.
Forced aeration shortens composting time and provides a stable, predictable result, without the need to turn the waste. The system is able to handle seasonal fluctuations in feedstock composition, making it a dependable, future-proof upgrade for any composting operation.
Plant managers value the dependable data for permits and reporting, and the clear reduction in odour complaints from surrounding areas.
Key Operational Gains
- Ability to handle a wide range of feedstock types
- Faster processing and higher throughput, requiring a smaller footprint
- Consistent compost quality with fewer hot or cold spots
- Lower risk of regulatory issues through reliable monitoring
- Connected to WTT Services — remote support and diagnostics
A Solution That Grows With You
A system that fits the market you are in today, while preparing you for the market you want to be in tomorrow.
The result? High quality compost and reduced odour. And because the system is modular, you can start small and expand as demand grows. There is no need to over-invest in capacity you are not ready for.
Temperature probes at multiple locations in each bay feed continuous process data to the control system. Automated airflow adjustments ensure the composting process stays within the optimal thermophilic range — maximising sanitisation, organic degradation rates, and final product quality.
Proven Benefits Across Operations
From feedstock flexibility to regulatory compliance, Aerated Bays deliver measurable improvements.
Wide Feedstock Range
Process green waste, food waste, manures, sewage sludge, organic fraction of MSW and more — all on the same system with simple parameter adjustments.
Faster Throughput
Forced aeration accelerates decomposition, reducing process cycles and increasing the tonnes of waste handled per m² of facility floor each year.
Consistent Quality
Automated aeration control eliminates hot and cold spots. Every batch of compost reaches the required sanitisation and maturity standards reliably.
Reliable Monitoring
Continuous temperature and airflow data generates accurate audit trails for permits, regulators and client reporting requirements.
Odour Reduction
Controlled aerobic conditions minimise anaerobic pockets — directly reducing odour complaints and improving community relations.
Permit Compliance
Dependable process records make it easier to meet regulatory requirements and avoid the risk of non-compliance penalties.
Layouts That Fit Your Exact Space
Every site is different. Our aerated bays are sized and arranged to match existing buildings, feedstock flows and expansion plans.
- Bays from six to twelve metres wide and twenty to sixty metres long
- Layouts engineered to fit existing space, resulting in easier retrofits
- Begin with a single module and add more as volumes grow
- A single module can consist of up to four bays
- Works equally well with concrete-walled bays or open windrows
- Options for covered or uncovered installations depending on climate
Modularity in Action
A typical first installation might start with one module of 2–4 bays, processing a limited feedstock mix. As experience grows and intake volumes increase, additional modules are added with the same control system, same spare parts list, and same operator interface — so training and support never start from zero.
BayWatch — Real-Time Oversight from Any Device
BayWatch , our browser-based platform, gives real-time oversight from any device. Temperature probes and automated airflow keep the process on track while minimising energy use. For locations with unstable internet, a local touchscreen is available for offline operation.
- Remote access and diagnostics from phone, tablet or office PC
- Variable fan speed for energy efficiency — deliver only the air that’s needed
- Optional local control via touchscreen for added security in low-connectivity areas
- Integrated KPIs for process optimisation and efficiency tracking
Highlights for Operators
| Feature | Value |
|---|---|
| Access Model | Browser-based, no install required |
| Frequency Drives | Variable speed, energy-efficient VFDs |
| Data Logging | Continuous, exportable for audit trails |
| Offline Mode | Local touchscreen backup available |
| Alerts | Email & SMS notifications on process deviation |
Engineered to Stand Up to Outdoor Conditions
Heavy-duty components, premium materials, and thoughtful design for years of dependable service.
Pre-Assembled Fan Packs
Skid-mounted, pre-wired and factory-tested fan packages ship to site ready for connection, dramatically shortening installation and commissioning time.
Spigot Floor System
Modular floor panels with integrated aeration nozzles simplify installation and provide uniform air distribution across the full bay cross-section.
Premium Materials
Optional galvanised or stainless steel finishes stand up to corrosive compost environments and all outdoor weather conditions.