DAF System in food industry
The DAF System , Dissolved Air Flotation (DAF) systems have become a standard for primary wastewater treatment across the food processing and beverage industry. The efficiently removing challenging pollutants like Fats, Oils, and Grease (FOG) and Total Suspended Solids (TSS).
|
Food Industry Application |
Primary Pollutants Removed |
|
Meat & Poultry Processing |
FOG, TSS, Blood, Proteins, BOD |
|
Dairy Processing |
Fats, Milk solids, Cheese fines, COD |
|
Beverage Production line |
Yeast, Fruit/vegetable pulp, Starches, Sugars |
|
Prepared Foods & Condiments |
FOG, Food solids, Starches, Suspended organics |
|
Cocoa & Ingredients Processing |
High-strength TSS, FOG, Dark color bodies, COD |
|
Industrial Bakeries |
Flour, Oil, Grease, Dough solids, High BOD |
|
Food Courts & Central Kitchens |
FOG, Food solids, High-volume dishwashing wastewater |
DAF systems better working together with Chemicals, the coagulants and/or flocculants to maximize FOG and solids removal in food processing applications. Proper dosing maximizes particle capture and ensures solids particles are large and stable enough to be successfully floated to the surface.
Dissolved Air Flotation Machine Specification
|
|
Items |
Specification |
Qty |
Remarks |
|
1 |
DAF System Tank |
Material:SUS304 Material Dimension:L=7.5m, W=2.1m, H=2.2m It has PH +PAC +PAM reactor tank, Flotation tank, clean water tank |
1 |
HINADA |
|
1.1 |
Booster Pump
|
Q=30m3/H, H=13m, P=3.0KW CNP Brand |
2 |
CNP |
|
1.2 |
Water Level Detector |
|
1 |
|
|
2 |
Reactor Tank |
|
|
|
|
2.1 |
Dosing system
|
Dosing Pump Q=30L/H, H=0.5MPa |
3 sets |
SYEELAI |
|
PE Tank (PH+PAC+PAM) PE Tank 1000L |
3 sets |
HINADA |
||
|
Mixer for PE Tank P=0.37KW, Speed: 62r/min for PH/PAC; 25*400 impeller, 1.1m axle with SUS304 Material. Speed: 33r/min for PAM, 25*500 impeller, 1.1m axle with SUS304 Material. |
3 set |
SYEELAI |
||
|
2.2 |
Mixer System |
Mixer for Reactor Tank P=0.75KW, Speed: 62r/min for PH/PAC; 25*200 impeller, 1.8m axle with SUS304 Material. Speed: 33r/min for PAM, 25*300 impeller, 1.8m axle with SUS304 Material. |
2sets |
SYEELAI |
|
3 |
Dissolved air System |
|
|
|
|
3.1 |
Air Dissolved Vessel |
Material: SUS304 Dimension: Φ600* 1500mm DN50, Vessel thickness: 6mm |
1 |
HINADA |
|
|
Items |
Specification |
Qty |
Remarks |
|
3.2 |
Air Compressor |
P=5.5KW, V=200L, H=0.8Mpa, Speed=2860r/min |
1 |
TAHLI |
|
3.3 |
Dissolved Air High Pressure Pump |
High Pressure pump Q=10m3/H, H=52m, P=2.2KW CNP Brand |
1 |
CNP |
|
3.4 |
Release Nozzles |
Material: SUS304 |
2 units |
HINADA |
|
3.5 |
Magnetic valve |
SUS304, DN50 |
1 set |
HONGFA |
|
4 |
Scraper System |
|
|
|
|
4.1 |
Slag Scraper |
Cycle Chain Material: SUS304 Axle: SUS304 Rod |
1 |
HINADA |
|
4.2 |
Gear Motor |
P=0.5KW, Speed: 6m/min |
1 |
BANGSHUO |
|
5 |
Clean Water Tank |
|
|
|
|
5.1 |
Adjuster |
Water flow adjuster |
1 |
HINADA |
|
6 |
Control System |
|
|
|
|
6.1 |
Control Panel |
PLC + touch screen Siemens PLC Schneider electric parts |
1 |
Siemens |
|
6.2 |
PH Meter |
|
1 |
CREATEC |
|
7 |
Other parts |
Pipes,valves etc |
1 |
SLG |
Hinada the leading manufacturer of DAF System for industrial wastewater treatment according to project requirement. To make the suitable proposal, we need know more details of project included: capacity, wastewater source,wastewater quality (SS,BOD,COD,FOG etc ).
DAF System design key issues considered:
|
Parameter |
Typical Target/Context |
|
Hydraulic Loading Rate |
Varies by design; central to footprint calculation |
|
High Pressure Pump /Recycle Ratio |
Reflux rate at 25% to 45% of the permeate flow |
|
Air-to-Solids Ratio |
Optimized via jar testing for specific wastewater |
|
Hydraulic Retention Time |
3 to 10 minutes for DAF Separation |
Dissolved Air Flotation System main feature 
