Stainless Steel DAF Air Flotation Machine 10-150m3/h High Load Industrial Wastewater Treatment System

High Load DAF Air Flotation Machine Working Principle

The upgraded version of the standard air flotation machine, the high load DAF system offers higher operational stability and reliability for industrial wastewater treatment. Air is dissolved into the wastewater under pressure and released as fine micro-bubbles that carry suspended solids, oil and grease to the surface for automatic skimming. Sedimentation occurs during the flotation process, which is particularly serious in the wastewater pre-treatment section, and a large amount of sediment affects the quality of the effluent and the stability of the operation. This DAF air flotation machine can effectively eliminate sediment to ensure stable operation even under high influent loading.

Features and Advantages

• High hydraulic load: 4~8 m3/(m2.h), ideal for high-throughput industrial projects
• Allowable influent flotation concentration up to ~4000 mg/L
• Automatic discharge of floating slag, with a weekly content of up to 30-100%
• Overall complete set with compact structure and cost-effective market retention
• The whole unit can be dismantled for easy transportation and installation, ideal for overseas projects
• "W" type sludge collecting hopper and side closed scraping system ensure safe operation

Technical Parameters

Applications

1. Industrial wastewater pretreatment: food processing, textile printing and dyeing, semiconductors, machinery, steel, chemical industry and aquaculture. 2. Sewage treatment plant pretreatment, upgrading and phosphorus removal. 3. Water treatment plant algae removal. 4. River and lake purification and landscape water treatment. 5. Desalination projects.

Application Case

Textile wastewater treatment case of Nopont Nonwovens. Industry: Textile Wastewater. Capacity: 120 m3/h. Product: Shallow air flotation SAF. The wastewater is characterized by high COD and BOD content, deep and variable chromaticity, textile fiber impurities, sand-like substances, grease and inorganic salts, and unstable pH. The high load DAF machine removes suspended solids and directly settleable impurities, regulates water quality and quantity, and features short hydraulic retention time and small base load, just right for treating large amounts of industrial wastewater.