vDAF
Vortex Dissolved Air Flotation
Vortex Dissolved Air Flotation System, vDAF
Making the smallest air bubbles
In most numbers
- Generation of micro bubbles using spiral vortex and air generating nozzles
- Bubble average size diameter below 25㎛, number concentration above 100,000ea/mL (Verified by Korea Institue of Machinery & Materials(KIMM))
- Verified by the Korean government, “Excellent Performance Certification” No. 27-422
WHY Micro bubbles?
- Smaller the bubble size, the smallest suspended solids in the wastewater can be floated and removed
- More chance to attach to solids, resulting in minimized chemicals injection
*Data from B livestock wastewater treatment plant advanced treatment equipment retrofitting project
(Click to enlarge)
Conventional Method by diffuser(bigger than 100µm)
Micro-bubbles by Vortex (Under 25µm)
Applications
Reuse of sewage
Make-up water of streams / irrigation water
Retrofitting dissolved air flotation(DAF)
Livestock manure/sewage/wastewater
Features
Proven SS Removal
Microbubble density 5 times more than conventional DAF
Minimizing sludge loss
- By colliding high density air dissolved water, generated micro bubbles remove the smallest suspended solids in the wastewater
- Dense bubble bed creation, minimizing re-sinking and loss of the floated sludge
Highly Economical
Best energy efficiency, reducing energy usage max 60%
150% increased capacity compared to conventional reactor
- Minimized power supply to produce air bubbles
- Sludge volume reduced 30%, resulting in less sludge treatment fee
- Increased capacity resulting in less opeartion cost
| Example reference of increased capacity(D livestock wastewater treatment plant retrofit) | |
|
(Before) Capacity : 6.5㎥/hr Operation time : 24.0hr/d |
(After) Capacity : 9.5㎥/hr Operation time : 16.4hr/d |
Optimum Models per Applications
vDAF
Dissolved air flotation
using micro bubbles
High flotation efficiency and treatment time with micro bubbles attached to pollutants
- Sewage/wastewater(pretreatment, advanced treatment)
- Sewage phosphorus removal
- Leachate treatment
vDAF-O₃
Dissolved air flotation and advanced oxidization by ozone in one process
(o₃+UV)
Treating turbidity, total phosphorus(T-P) above 90% and total E. coli 100%
- Livestock wastewater advanced treatment
- Sewage reuse(Irrigation water)
- Non-degradable wastewater treatment
vGEN
High density air dissolved water&
microbubble generating system
Dissolving equipment and specialized nozzles to generate micro bubbles in short time
- Retrofitting conventional DAF
- Aquaculture
- Hydroponics