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Wastewater Purification System Sewage Treatment Company New Dissolved Air Flotation Units
Product Details:
| Place of Origin: | China |
| Brand Name: | Fenigal/OEM |
| Certification: | CE/ISO etc. |
| Model Number: | DAF-3-9C |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 Set |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Standard Export Wood Crate/Carton or Naked wrapped by film/Containerized |
| Delivery Time: | 15~30 days |
| Payment Terms: | T/T, Western Union, Paypal etc. |
| Supply Ability: | 200 set per month |
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Detail Information |
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| Technology: | Membrane Bioreactor | Membrane: | PVDF/PTFE Holow Fiber, Flat-sheet Optional |
|---|---|---|---|
| Design: | Skid Mount/containerized | Water Temp.: | 5~35˚C |
| Water Flowrate: | Up To 315 M3/day | Material: | Carbon Steel |
| Voltage: | 380V,415V,220V,can Be Customized | Application: | Waste Water, Sewage Water Treatment |
| Size: | Compact Or Bigger | Control: | Electronic,Manual/PLC |
Product Description
Wastewater Purification System Sewage Treatment Company New Dissolved Air Flotation Units
Dissolved Air Flotation (DAF) systems remove suspended solids, fats, oils, greases and non-soluble organics by a process of dissolving air into water under pressure.
Features
The Sedimentation Dissolved Air Flotation include mixing, flotation and sedimentation zones. They have a highly efficient dissolved air distribution system.
Dissolved air flotation effectively separates and removes the floating sludge layer, and the sedimentation plate packs remove the dense sludge settling at the bottom of the SDAF units. This results in high rate clarification capable of efficiently treating high suspended solids and high fats/oils wastewater. This amounts to 15-30% chemical dosage cost savings compared to the conventional DAF systems.
The SDAF features includes:
- Mild Steel or Stainless Construction
- Skid Mounted or Containerised
- Flocculation, Flotation and Sedimentation Zones
- Efficient Air Diffusion and Mixing Zone
- Sedimentation Plate Packs
- Mechanical Sludge Skimmer and Scraper
- Level Controlled, Non-clogging Sludge Weir
- Chemical Dosing System
- Feed and Discharge Pumps
The process begins with the water to be treated entering the DAF through an influent header box that reduces velocity and distributes the water across the length of the vessel. In order to optimize treatment, the influent header box is designed with multiple points at which whitewater, a highly saturated pressurized stream of air and DAF effluent, and flocculant, where applicable, are injected.
Wastewater then enters the flotation zone and microbubbles from the whitewater attach to the particle surface and affect the particle density, causing the suspended solids to float to the surface of the DAF where they are skimmed by a chain and flight and separated into the sludge hopper. The treated wastewater is continuously removed at several points inside the DAF and discharges over pipe weirs into an effluent chamber. From there, it flows out of the DAF.
The Ideal DAF™ achieves high rate removal efficiencies at a low operational cost with a smaller footprint and longer lifespan by employing such techniques as:
- Progressive Water Extraction – Extended retention time and better effluent quality
- Cross-Flow Design – Lower velocity and better separation
- Ideal DAG™ Technology – High removal efficiency, lower power requirement and lower chemistry
- Plate Separators – Maximize solids removal
- Thickening Beach – Sludge thickening
- Cone Bottom – Easy sludge removal
With a polypropylene construction, the Ideal DAF offers benefits including:
- Corrosion resistance
- Up to 9,000 GPM systems
- High TDS and saltwater tolerance
- Chemical treatment flexibility
- Heavy duty, lightweight construction
- Wide pH range
- High temperature tolerance
- Guaranteed long life
| Model | Capacity | Power(kw) | Dimension(m) | Nozzle list(DN) | |||||||
| (m3/h) | Recirculation pump | Air compressor | Skimmer | Sludge scraper | L/L1 | W/W1 | H/H1 | Inlet | Outlet | Sludge outlet | |
| SDAF-003 | ~3 | 0.75 | 0.55 | 0.18 | 3.4/2.2 | 2.4/1.7 | 2.4/1.9 | 80 | 80 | 100 | |
| SDAF-005 | ~5 | 1.1 | 0.55 | 0.18 | 3.8/2.5 | 2.2/1.5 | 2.5/2.1 | 80 | 80 | 100 | |
| SDAF-010 | ~10 | 1.5 | 0.55 | 0.18 | 5.1/3.8 | 2.4/1.7 | 3.0/2.4 | 100 | 100 | 100 | |
| SDAF-015 | ~15 | 2.2 | 0.75 | 0.18 | 5.1/3.8 | 2.9/2.2 | 3.0/2.4 | 100 | 100 | 100 | |
| SDAF-020 | ~20 | 3.0/5.5 | 0.75 | 0.18 | 5.4/4.1 | 2.9/2.2 | 3.0/2.4 | 150 | 150 | 150 | |
| SDAF-030 | ~30 | 3.0/5.5 | 0.75 | 0.18 | 5.5/4.2 | 3.2/2.5 | 3.2/2.6 | 150 | 150 | 150 | |
| SDAF-040 | ~40 | 4.0/5.5 | 0.75 | 0.18 | 6.5/5.2 | 3.2/2.5 | 3.2/2.6 | 200 | 200 | 150 | |
| SDAF-050 | ~50 | 7.5 | 0.75 | 0.18 | 1.5 | 7.2/5.9 | 3.2/2.5 | 3.2/2.6 | 200 | 200 | 150 |
| SDAF-060 | ~60 | 7.5 | 1.5 | 0.18 | 1.5 | 7.6/6.7 | 2.7/3.3 | 3.3/2.7 | 250 | 250 | 150 |
| SDAF-070 | ~70 | 11 | 1.5 | 0.18 | 1.5 | 8.1/6.7 | 3.6/2.9 | 3.3/2.7 | 250 | 250 | 150 |
| SDAF-080 | ~80 | 11 | 2.2 | 0.18 | 1.5*2 | 9.4/8.5 | 3.1/2.4 | 3.3/2.7 | 250 | 250 | 150 |
| SDAF-100 | ~100 | 15 | 2.2 | 0.18 | 1.5*2 | 10.0/8.8 | 3.7/3.0 | 3.3/2.7 | 300 | 250 | 150 |
| SDAF-120 | ~120 | 15 | 2.2 | 0.18 | 1.5*2 | 10.9/9.7 | 3.7/3.0 | 3.3/2.7 | 300 | 300 | 150 |
| SDAF-150 | ~150 | 18.5 | 2.2 | 0.18 | 1.5*2 | 13.5/12.2 | 3.7/3.0 | 3.3/2.7 | 350 | 300 | 150 |
| SDAF-200 | ~200 | 22 | 2.2 | 0.18*2 | 1.5*4 | 10.8/9.6 | 6.7/3.0 | 3.3 | 300*2 | 250*2 | 150 |
| SDAF-300 | ~300 | 30 | 5.5 | 0.18*2 | 1.5*4 | 13.5/12.6 | 6.7/3.0 | 3.3/2.7 | 350*2 | 300*2 | 150 |
Application
As a waste water process, DAF clarifier is widely used in sewage treatment and water purification engineering. DAF clarifier is suitable for:
l Increase effluent recycling and fresh water reusing in paper and pulp
l Removal of heavy metal ions
l Separation of oil refinery effluent
l Removal of tannery wastewater
l Removal of chromaticity and impurities in printing and dyeing wastewater
l Solid-liquid separation of sewage and membrane after all kinds of bio-treatment
l Sludge concentration (capacity: 20%~ 30%, except the dedicated device which can be designed according to the requirements)
During the air floatation process, a large number of fine and uniformbubbles (5 ~ 8 microns) are formed to form a three-phase mixture of airbubbles, water,and flocs (oil). They contact and adhere together to takeshape of air-containing flocs that float to the surface and are mechanicallyscrap by scum skimmer. Then water will be purified.
The theoretical basis of the air-dissolving process is Henry's Law meansthat in air-floatation system, air dissolves in water under high pressure andapproaches saturation, and is released under reduced pressure to normalpressure.