Aeration Systems

Optimised for water and wastewater treatment—dissolved metal removal, gas stripping, VOC
oxidation

Under construction

Overview

Aeration Systems are a foundational pre-treatment solution used across water and wastewater treatment to eliminate dissolved contaminants like iron, hydrogen sulfide, volatile organic compounds (VOCs), and harmful gases. This process introduces finely dispersed air bubbles, initiating oxidation and particulate disaggregation that enhance downstream processes such as filtration or flotation.

Designed to meet industrial requirements, these systems operate across mining, chemical, potable water, and wastewater sectors—delivering greater operational control and water quality.

Technical Highlights

Fine-bubble membranes typically less than 3 mm diameter deliver up to 15 lb O₂ per horsepower-hour (≈ 9 kg/kWh)
Typical diffuser maintenance cycle: 1–3 years depending on fouling; annual inspection recommended
Jet aerators enable robust turbulence-driven mixing and high OTE—even in deep or high-MLSS tanks

How Aeration Systems Work

Compressed air is introduced into water via diffusers—often fine-bubble (< 3 mm) or coarse-bubble (> 5 mm) types typically installed near the tank bottom. Fine-bubble diffusers provide superior Standard Oxygen Transfer Efficiency (SOTE), offering more surface contact time and energy savings.

As bubbles rise, dissolved metals oxidize and gases are stripped—enabling particulate precipitates to form or gases to vent naturally. Customized diffuser grids and cascade designs ensure optimal air/water contact and mixing.

Key Benefits

Efficient Metal Oxidation & Gas Removal: Oxidizes iron to ferric iron and hydrogen sulfide to elemental sulfur, mitigating staining, permeability issues, foul odours, and equipment damage.
High Oxygen Transfer Efficiency (OTE): Fine-bubble designs deliver energy-efficient performance, reducing blower load and operational costs.
Gas Stripping & VOC Removal: Consistently removes dissolved CO₂, methane, ammonia, chlorine, manganese, VOCs—improving taste, odour, and safety.
Scalable & Flexible Design: Modular diffuser layouts, jet aerators, or spray towers available to suit varying flow rates and treatment goals.

Industries Where Aeration Systems Are Used

Potable and drinking water treatment—remedying iron, hydrogen sulfide, and VOC contamination before filtration or reverse osmosis
Wastewater treatment, notably in activated sludge or lagoon systems, where oxygen supply supports microbial breakdown
Mining and mineral processing—aeration helps remove dissolved metals and oxidize sulfur compounds in process water
Chemical and agricultural sectors—used as initial treatment to reduce metadata load and VOCs before secondary processing

Customization & Integration

Cube’s Aeration Systems can be tailored with:

Fine-bubble diffuser grids, coarse-bubble devices, or jet aerators depending on oxygen/dissolved gas needs
Custom 3D design schematics for seamless integration in your existing water treatment lines
Configurable control systems, variable air volume scheduling and materials (EPDM, ceramic, PVC) suited to industrial corrosive environments