Versatile DAF Dissolved Air Flotation System Product Description

Dissolved air flotation (DAF) is an efficient and fast method for separating solid particles from water and wastewater. Part of the treated wastewater is circulated into the dissolved air tank. Under the pressurized air state, the air is supersaturated and dissolved, and then mixed with the raw water with flocculant added at the entrance of the flotation tank. Due to the pressure reduction, the supersaturated air is released, forming tiny bubbles, which quickly attach to the suspended matter and lift it to the surface of the flotation tank. Thus, a sludge floating layer that is easy to remove is formed, and the heavier solid matter settles at the bottom of the pool and is also removed. This versatile DAF system is particularly effective for WWTP sewage with high chroma, low dissolved oxygen, low water temperature and many organic impurities.

Features

• Under pressurized conditions, the solubility of air is large, ensuring a strong air flotation effect
• Fine, uniform, dense and stable bubbles cause little disturbance to the liquid, ideal for loose flocs and fine particles
• Suitable for purifying sewage with high chroma, low dissolved oxygen and low water temperature
• Also suitable for separation of biological mud membrane and water in biological treatment
• Simple process and equipment, easy to manage and maintain
• Partial reflux type saves energy consumption with stable treatment effect

Technical Parameters

Scope of Application

Suitable for WWTP sewage treatment with high chroma, low dissolved oxygen and many organic impurities, especially for sewage with low water temperature that is not suitable for gravity sedimentation. Also suitable for industrial wastewater treatment and the separation of biological mud membrane and water in biological treatment.