Wastewater Treatment
From aeration basins to sludge digestion, Sollant delivers reliable, oil-free compressed air solutions that keep your plant running — 24/7, within compliance, and at the lowest cost of ownership.
Industry Pain Points
Why Stable Compressed Air Is
Essential for Wastewater Treatment
Aeration systems operate over extended periods with high energy consumption, making the cost of compressed air a sensitive factor.
Energy consumption is high; compressed air typically represents a major component of a wastewater treatment plant’s electricity usage.
Operating conditions fluctuate significantly, requiring airflow and pressure to be adjusted according to the load.
There are strict requirements for air quality and stability, particularly for membrane systems and instrument air.
Key Application Areas
Each application has distinct pressure, flow, and air-quality requirements. Sollant’s product range covers them all.
Activated Sludge Aeration
The most energy-intensive process in any plant. Fine-bubble diffusers fed by variable-speed oil-free blowers supply the continuous oxygen flow that aerobic bacteria need to break down BOD — without contaminating the water with oil.
Membrane Bioreactor (MBR)
MBR systems require two things from aeration: sustained DO levels for microbial activity, and steady membrane scouring to prevent fouling. Pressure precision and flow consistency are critical to membrane lifespan and effluent quality.
Moving Bed Biofilm Reactor (MBBR)
The biofilm carriers must remain continuously suspended throughout the reactor. Air supply is the sole driving force for maintaining the circulation of the packing material and maximizing surface contact between the wastewater and the biofilm.
Sequencing Batch Reactor (SBR)
Lagoon diffused aeration offers far lower energy consumption than surface aerators. SBR systems operate in timed aeration cycles — controlled blower staging with fixed-speed units delivers competitive cost-per-treated-volume performance.
Sludge Digestion & Biogas
Even in anaerobic digestion, blowers handle sludge mixing and conditioning. The resulting biogas can be captured and recompressed for on-site power generation, reducing net operating costs and carbon footprint.
Instrument & Control Air
Every pneumatic valve, DO transmitter, and positioner in a modern plant runs on clean, dry instrument air. This circuit must be the most reliable in the facility — a loss of control air can halt the entire plant.
Ready to Optimise Your Aeration System?
Tell us your flow rates, operating pressure, and site conditions. Our application engineers will size the right solution and calculate your projected energy savings.
Why Sollant
Built for the Demands of Water Treatment
VSD as Standard
Permanent-magnet variable frequency drives match output to actual demand. No wasted air when biological load drops overnight or seasonally.
Class 0 Oil-Free
Class 0 certified. Zero oil contamination risk to treated water, membranes, and final effluent — protecting your discharge permit.
7×24 Engineer Support
Round-the-clock after-sales engineering support. Wastewater plants don’t stop — neither do we. Remote diagnostics and on-site response available.
Reliable Continuous Operation
Built with high-quality components and designed for longevity, the system supports 24/7 uninterrupted operation, minimizing the risk of downtime.
Low Maintenance Costs
Features a simple structure and easy maintenance; combined with an intelligent monitoring system, it enables predictive maintenance and reduces the total cost of ownership (TCO).
Comprehensive System Solution
Offers an integrated compressed air station—including air compressor, dryer, air receiver tank, and filters—designed for plug-and-play functionality and rapid installation.
What the Customer Says
“Sollant’s variable-frequency air compressors operate stably with low noise levels; their energy consumption has dropped by nearly 30% compared to before, significantly reducing our production costs.”
James Wilson, Production Manager
“Sollant’s equipment demonstrates exceptional stability; having operated continuously at full load for 24 hours without a single abnormal shutdown, it serves as our most trusted source of power support.”
Miller, Equipment Supervisor
“The service team is professional and highly responsive. The equipment has been in operation for over two years, demonstrating stable overall performance, a low failure rate, and low noise levels; they are a trustworthy partner.”
Eric Wright, Technical Director
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