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Anti-Clogging Dissolved Air Flotation (DAF) System for Wastewater Treatment

Short Description:

The Dissolved Air Flotation (DAF) system is a high-performance solution for wastewater clarification and sludge separation. By dissolving air into the water under pressure and releasing it to atmospheric conditions, microbubbles are generated that attach to suspended particles. These air-laden particles rise rapidly to the surface, forming a sludge layer that can be easily skimmed off, leaving behind clean and clarified water.

This method is widely recognized as a cost-effective and energy-efficient physical-chemical process for treating various types of industrial and municipal wastewater.


Product Detail

Product Tags

Product Features

  • ✅ Wide Capacity Range: Single-unit flow capacity from 1 to 100 m³/h, suitable for both small-scale and large-scale wastewater treatment projects, especially for global export markets.

  • ✅ Recycle Flow DAF Technology: Enhanced efficiency through recirculated pressurized water, ensuring stable air saturation and optimal bubble formation.

  • ✅ Advanced Pressurization System: Generates a dense cloud of fine microbubbles to maximize contact with suspended solids and oils.

  • ✅ Custom-Engineered Designs: Tailored DAF systems available based on specific wastewater characteristics and target pollutant removal levels. Adjustable recycle flow ratios ensure consistent performance.

  • ✅ Adjustable Sludge Skimming: Stainless steel chain-type skimmer accommodates varying sludge volumes, ensuring effective and consistent sludge removal.

  • ✅ Compact and Integrated Design: Optional coagulation, flocculation, and clean water tanks integrated into the DAF unit to minimize installation space and reduce capital cost.

  • ✅ Automated Operation: Remote monitoring and automatic control system enhance operational safety and efficiency.

  • ✅ Durable Construction Materials:
     ① Epoxy-coated Carbon Steel
     ② Epoxy-coated Carbon Steel with FRP lining
     ③ Corrosion-resistant Stainless Steel 304 or 316L for harsh environments

1630547348(1)

Typical Applications

DAF systems are versatile and widely used across industrial and municipal sectors for various wastewater treatment objectives, including:

  • ✔️Product Recovery & Reuse: Reclaims valuable materials from process water, reducing waste and enhancing resource efficiency.

  • ✔️Pretreatment for Sewer Discharge Compliance: Ensures treated effluent meets local environmental discharge regulations.

  • ✔️Biological System Load Reduction: Removes oils, solids, and grease before biological treatment, improving downstream efficiency.

  • ✔️Final Effluent Polishing: Enhances the clarity of biologically treated effluent by removing remaining suspended particles.

  • ✔️Removal of Oils, Grease, and Silt: Particularly effective for wastewater containing emulsified fats and fine solids.

Widely Applied In:

  • ✔️Meat, Poultry & Seafood Processing Plants: Removes blood, fat, and protein residues.

  • ✔️Dairy Production Facilities: Separates milk solids and grease from process water.

  • ✔️Petrochemical Industry: Treats oily wastewater and separates hydrocarbons.

  • ✔️Pulp & Paper Mills: Removes fibrous materials and ink residues.

  • ✔️Food & Beverage Manufacturing: Manages organic contaminants and cleaning byproducts.

Application

Technical Parameters

Model Capacity
(m³/h)
Dissolved air water volume(m) Main motor power(kW) Mixer power(kW) Scraper power(kW) Air compressor power(kW) Dimensions (mm)
HLDAF-2.5 2~2.5 1 3 0.55*1 0.55 - 2000*3000*2000
HLDAF-5 4~5 2 3 0.55*2 0.55 - 3500*2000*2000
HLDAF-10 8~10 3.5 3 0.55*2 0.55 - 4500*2100*2000
HLDAF-15 10~15 5 4 0.55*2 0.55 - 5000*2100*2000
HLDAF-20 15~20 8 5.5 0.55*2 0.55 - 5500*2100*2000
HLDAF-30 20~30 10 5.5 0.75*2 0.75 1.5 7000*2100*2000
HLDAF-40 35~40 15 7.5 0.75*2 0.75 2.2 8000*2150*2150
HLDAF-50 45~50 25 7.5 0.75*2 0.75 3 9000*2150*2150
HLDAF-60 55~60 25 7.5 0.75*2 1.1 4 9000*2500*2500
HLDAF-75 70~75 35 12.5 0.75*3 1.1 5.5 9000*3000*3000
HLDAF-100 95~100 50 15 0.75*3 1.1 3 10000*3000*3000

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