Rumtoo Machinery
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Description
Dissolved Air Flotation (DAF) System
Efficient and Cost-Effective Wastewater Treatment for Plastic Recycling
What is Dissolved Air Flotation (DAF)?
Dissolved Air Flotation (DAF) is a water treatment process that clarifies wastewater by removing suspended matter such as oils, solids, and other contaminants. This is achieved by dissolving air into the water under pressure, then releasing it at atmospheric pressure in a flotation tank. The released air forms tiny bubbles that attach to suspended particles, causing them to float to the surface, where they are skimmed off, leaving the treated water clear and free of pollutants.
Why Use DAF in Plastic Recycling?
Plastic recycling plants generate significant amounts of wastewater contaminated with microplastics, oils, and other residues. Without proper treatment, this wastewater can harm the environment and lead to high disposal costs. Implementing a DAF system in plastic recycling plants not only addresses these environmental concerns but also reduces water consumption and operational costs, making recycling processes more sustainable.
How DAF Works in Plastic Recycling
The working principle of a DAF system in plastic recycling involves a two-stage air compression process. Compressed air is dissolved into the wastewater, which is then released into a flotation tank. As the dissolved air is released, it forms microbubbles that attach to the suspended particles. These bubbles rise to the surface, where a mechanical scraper removes the contaminants, resulting in clarified water that can be reused in the recycling process.
To enhance efficiency, coagulants or flocculants like Poly Aluminium Chloride (PAC) and Polyacrylamide (PAM) are often added, which help aggregate the particles, making it easier for the microbubbles to lift them to the surface.
Key Applications of DAF Systems
- Plastic Recycling Wastewater Treatment: Removes microplastics, oils, and other residues.
- Paper Wastewater Treatment and Fiber Recovery.
- Printing and Dyeing Wastewater Treatment: Separates dyes and pigments.
- Electroplating Wastewater Treatment: Removes heavy metal ions.
- Oily Wastewater Treatment: Separates oils and grease from industrial effluents.
- Tannery Wastewater Treatment: Handles removal of fats, hair, and chemicals.
- Food Wastewater Treatment: Ideal for treating fats, oils, and grease in food industry effluents.
Technical Specifications of DAF Systems
Warranty & Installation
Each DAF system includes a 1-year limited warranty. We provide installation services, with our engineers visiting your site to assist with setup. Arrangements for regular maintenance crews and operational consultants can also be made to ensure efficient operation.
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