Dissolved Air Flotation (DAF) System - E Series Enhanced DAF
The Ecologix Enhanced DAF is a complete primary (phys/chem) treatment system. It is an incredibly versatile and efficient chemical precipitation and physical separation system. The E-DAF combines several proven technologies such as DAF (Dissolved Air Flotation) and DGF (Dissolved Gas Flotation), into a single platform. Our E Series Dissolved Air Flotation (DAF) systems are the industry standard for efficient removal of Fats, Oils and Grease (FOG), Total Suspended Solids (TSS) and Biochemical Oxygen Demand (BOD) from a wide variety of wastewater streams.
To discuss your wastewater treatment solution, call on one of our professional Engineers to request a budgetary proposal for your specific requirements.
What is Dissolved Air Flotation?
Dissolved air flotation (DAF) is a clarification process that utilizes air to remove suspended matter from the surface of treated water. DAF works by dissolving air under pressure and then releasing millions of tiny air bubbles into the water at atmospheric pressure.
This process allows the dissolved air bubbles to adhere to a suspended matter within the water, causing it to come to the surface to be skimmed away. The process is also often assisted by the addition of a coagulant or a flocculant to the flow water, which encourages clustering of colloidal particles.
Typically, DAF is used to clarify wastewater from food processing plants, oil refineries, oil fracking operation, chemical plants, and paper mills, among others. A strong DAF system is efficient and can clarify high volumes of wastewater in one session.
Key Features and Advantages
- Reduced footprint - Compared to any comparable system with similar flow rate/loading levels.
- High efficiency - Utilizes inclined settling tubes for increased surface area and faster separation.
- Air scouring - for automatic tube cleaning.
- Whitewater pumps - robust pumps in combination with saturation tanks provide industry leading reliability and low maintenance whitewater (dissolved air).
- Countercurrent scraping - for the most efficient separation of sludge from the effluent water. This also allows for more free water to decant prior to sludge removal.
- Sludge grating/thickening - Prevents sludge migration and thickens it.
- Fewer moving parts - no need for bottom auger and motor.
- Full movable SKID - An optional skid is now available with winch attachment.
Why Choose Ecologix for DAF Systems?
The Ecologix Enhanced DAF (E-DAF) System reduces the environmental footprint and impact when compared with other systems with similar flow rates and loading levels. For the environmentally conscious, this system will be the most efficient. The E-DAF also facilitates high-efficiency water treatment, meaning faster separation and larger quantities that can be treated on a smaller footprint. Battle sludge the right way. The system utilizes countercurrent scraping, the most efficient way to separate sludge from the effluent water, minimizing the chances of contamination to the effluent water. Sludge grating/thickening properties, also prevent sludge migration.
Preview the amazing results our E-DAF series can produce
Commercial bakery wastewater treatment.
Purifying frac wastewater in West Texas.
Key Features and Advantages
- DAF (Dissolved Air Flotation) and ACE (Air Charged Entrainment) combined into one - attached and entrained air for higher separation efficiencies.
- Upgradable to a full ITS (Integrated Treatment System) - including upgraded control panel, chemical feed pumps, polymer make down system, flocculation tubes, pre-wired and pretested as a complete wastewater treatment system.
- Easily converted to DGF (Dissolved Gas Flotation) for refineries and offshore platforms.
- Built from high corrosion resistant material such as 304SS or 316SS (upon request)
- Integrated walking mezzanine with stairs.
- Optional post-filtration filters.
- Optional dewatering system.
E Series DAF Available Models with Specifications
| Model | Max Flowrate* | L | W | H | Surface Area | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| US GPM | BPD | m3/h | ft | m | ft | m | ft | m | ft2 | m2 | |
| E-405 | 130 | 4,457 | 29.5 | 8' 2" | 2.5 | 5' 2" | 1.6 | 9' 4" | 2.8 | 202 | 18.8 |
| E-505 | 232 | 7,954 | 52.7 | 9' 8" | 2.9 | 6' 2" | 1.9 | 10' 10" | 3.3 | 362 | 33.6 |
| E-510 | 462 | 15,840 | 104.9 | 14' 7" | 4.4 | 6' 2" | 1.9 | 10' 10" | 3.3 | 722 | 67.1 |
| E-515 | 695 | 23,829 | 157.8 | 20' 1" | 6.1 | 6' 2" | 1.9 | 10' 10" | 3.3 | 1,085 | 100.8 |
| E-520 | 925 | 31,714 | 210.1 | 25' 6" | 7.8 | 6' 2" | 1.9 | 10' 10" | 3.3 | 1,445 | 134.2 |
| E-815 | 1,155 | 39,600 | 262.3 | 20 1" | 6.3 | 9' 2" | 2.8 | 10' 10" | 3.3 | 1,804 | 167.6 |
| E-820 | 1,540 | 52,800 | 349.7 | 26' | 7.9 | 9' 2" | 2.8 | 10' 10" | 3.3 | 2,405 | 223.4 |
| E-825 | 1,924 | 65,966 | 436.9 | 31' 6" | 9.6 | 9' 2" | 2.8 | 10' 10" | 3.3 | 3,006 | 279.3 |
| E-1025 | 2,313 | 79,302 | 525.3 | 32' 6" | 9.9 | 11' 2" | 3.4 | 10' 10" | 3.3 | 3,614 | 335.7 |
| E-1030 | 2,774 | 95,108 | 630 | 37' 11" | 11.6 | 11' 2" | 3.4 | 10' 10" | 3.3 | 4,335 | 402.7 |
| E-1035 | 3,237 | 110,982 | 735.1 | 43' 5" | 13.2 | 11' 2" | 3.4 | 10' 10" | 3.3 | 5,058 | 469.9 |
| E-1040 | 3,700 | 126,857 | 840.3 | 48' 10" | 14.9 | 11' 2" | 3.4 | 10' 11" | 3.3 | 5,780 | 537 |
| Model | Max Flowrate* | Recirculation Flowrate | Air Injection | |||
|---|---|---|---|---|---|---|
| US GPM | m3/h | US GPM | m3/h | SCFM | m3/h | |
| E-405 | 130 | 29.5 | 26 - 39 | 6 - 8.9 | 0.35 - 0.6 | 0.6 - 1.1 |
| E-505 | 232 | 52.7 | 46 - 70 | 11 - 15.8 | 0.62 - 1.1 | 1.1 - 1.9 |
| E-510 | 462 | 104.9 | 92 - 139 | 21 - 31.5 | 1.24 - 2.2 | 2.1 - 3.8 |
| E-515 | 695 | 157.8 | 139 - 209 | 32 - 47.4 | 1.86 - 3.3 | 3.2 - 5.7 |
| E-520 | 925 | 210.1 | 185 - 278 | 42 - 63 | 2.47 - 4.5 | 4.2 - 7.6 |
| E-815 | 1,155 | 262.3 | 231 - 347 | 52 - 78.7 | 3.09 - 5.6 | 5.2 - 9.4 |
| E-820 | 1,540 | 349.7 | 308 - 462 | 70 - 104.9 | 4.12 - 7.4 | 7 - 12.6 |
| E-825 | 1,924 | 436.9 | 385 - 577 | 87 - 131.1 | 5.14 - 9.3 | 10.5 - 18.9 |
| E-1025 | 2,313 | 525.3 | 463 - 694 | 105 - 157.6 | 6.18 - 11.1 | 10.5 - 18.9 |
| E-1030 | 2,774 | 630 | 555 - 832 | 126 - 189 | 7.42 - 13.3 | 12.6 - 22.7 |
| E-1035 | 3,237 | 735.1 | 647 - 971 | 147 - 220.5 | 8.65 - 15.6 | 14.7 - 26.5 |
| E-1040 | 3,700 | 840.3 | 740 - 1110 | 168 - 252.1 | 9.89 - 17.8 | 16.8 - 30.2 |
Enhanced Floctube System
Our innovative DAF system has the option to include an enhanced floctube assembly to increase contact time and improve dramatically system performance. Currently available configurations are listed below. Read more about our Enhanced Floctube System.
Enhanced Floctube Models and Specifications
| Model | Pipe Diameter | Flowrate | Retention Time* | L | W | H | Chemical Feed Pumps (Add-On) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Straights | Returns | Min (GPM) | Max (GPM) | Min (m3/hr) | Max (m3/hr) | For Min Flowrate (Seconds) | For Max Flowrate (Seconds) | ft | m | ft | m | ft | m | ||
| FLT-215 | 2" | 1 1/2" | 20 | 50 | 5 | 11 | 60 | 24 | 7' 2" | 2.2 | 2' 6" | 0.8 | 3' 4" | 1.0 | Additional 12" to Height |
| FLT-320 | 3" | 2" | 40 | 110 | 9 | 25 | 67 | 24 | 7' 5" | 2.3 | 3' 0" | 0.9 | 3' 11" | 1.2 | Additional 18" to Height |
| FLT-430 | 4" | 3" | 90 | 200 | 20 | 45 | 72 | 32 | 9' 8" | 2.9 | 2' 6" | 0.8 | 5' 3" | 1.6 | Additional 18" to Width |
| FLT-640 | 6" | 4" | 160 | 450 | 36 | 102 | 134 | 48 | 14' 8" | 4.5 | 3' 0" | 0.9 | 6' 10" | 2.1 | Additional 18" to Width |
| FLT-860 | 8" | 6" | 300 | 850 | 68 | 193 | 148 | 52 | 17' 8" | 5.4 | 4' 0" | 1.2 | 8' 2" | 2.5 | Additional 18" to Width |
| FLT-1080 | 10" | 8" | 600 | 1300 | 136 | 295 | 140 | 65 | 20' 8" | 6.3 | 5' 0" | 1.5 | 9' 7" | 2.9 | Additional 18" to Width |
| FLT-1210 | 12" | 10" | 900 | 2000 | 204 | 454 | 150 | 68 | 23' 8" | 7.2 | 6' 0" | 1.8 | 10' 11" | 3.3 | Additional 18" to Width |
* Retention time is calculated based on a minimum velocity of 2ft/second to avoid solids settling
Chemical Reaction Tanks
We also provide the option of adding separate chemical reaction tanks to our Enhanced DAF System.
Advantages of our Chemical Reaction Tanks
- Easy Operation
- Greater Flexibility for Varying Flow Rates
- Enhanced Efficiency
Chemical Reaction Tanks Models and Specifications
| Model | L | W | H | Retention Time (Mins) DAF Model | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ft | m | ft | m | ft | m | 405 (130 GPM) | 505 (232 GPM) | 510 (462 GPM) | 515 (695 GPM) | 520 (925 GPM) | 815 (1155 GPM) | 820 (1540 GPM) | 825 (1924 GPM) | |
| CRT-1000 | 10' | 3.0 | 4' 2" | 1.3 | 11' 10" | 3.6 | 7.69 | 4.31 | 2.16 | 1.44 | 1.08 | 0.87 | 0.65 | 0.52 |
| CRT-1900 | 12' 1" | 3.7 | 5' 7" | 1.7 | 11' 10" | 3.6 | 14.62 | 8.19 | 4.11 | 2.73 | 2.05 | 1.65 | 1.23 | 0.99 |
| CRT-3400 | 12' 1" | 3.7 | 5' 7" | 1.7 | 11' 10" | 3.6 | 26.15 | 14.66 | 7.36 | 4.89 | 3.68 | 2.94 | 2.21 | 1.77 |
| CRT-5200 | 12' 1" | 3.7 | 8' 6" | 2.6 | 11' 10" | 3.6 | 40.00 | 22.41 | 11.26 | 7.48 | 5.62 | 4.50 | 3.38 | 2.70 |