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Dissolved Air Flotation

The MAK Water Dissolved Air Flotation (DAF) system is a superior counter current system designed to achieve maximum treatment efficiency in a compact footprint. It is able to remove a variety of contaminants to meet trade waste or reuse requirements. Each system is sized based on the hydraulic loading rate, Total Suspended Solids (TSS) and Fats, Oil and Greases (FOG) levels. The surface loading rate that can be applied is dependent on each application. 

STANDARD PROCESS

The DAF separates the suspended solids and lighter liquid contaminants (eg FOG and hydrocarbons) from the water by moving them to the surface of the DAF vessel and then scraping them off the surface. A pressurised stream of airsaturated water is mixed with the flocculated water and with the release of pressure, a cloud of very fine air bubbles carries the suspended solids and lighter liquids to the tank surface. Clean water overflows from the DAF tank, via an under/over-weir to sewer or to the next stage of the treatment process. The overflow level is adjustable and controls the level in the DAF flotation section. The sludge on the surface of the DAF is scraped into a sludge hopper by a mechanical scraper. The DAF system is automated via a programmable logic controller (PLC) mounted within a control cabinet on the system.

If you have specific requirements, contact us about our custom water clarification systems.

STANDARD SPECIFICATIONS

Parameter Units DAF 1.0 DAF 1.5 DAF 3.5 DAF 10 DAF 20 DAF50 DAF100 DAF200
DAF Flow Rate m3/hr 1.0 1.5 3.5 10 20 50 100 200
Total Inlet Solids mg/L 10,000
FOG Removal % 85~95 (Application Dependent)
TSS Removal % 70~99 (Application Dependent)
COD Removal % 20~80 (Application Dependent)
BOD Removal % 20~80 (Application Dependent)
Power Consumption kW 2 3 4 7 12 25 44 84
Footprint m 2.2 x 2.0 2.2 x 2.0 3.0 x 2.5 4.0 x 3.0 4.0 x 3.0 6.0 x 5.0 9.0 x 5.0 10.0 x 6.0

 

STANDARD INCLUSIONS + OPTIONS

✓= Standard Supply, o = Optional Supply, - = Not Available

Equipment DAF1.0 DAF1.5 DAF3.5 DAF10 DAF20 DAF50 DAF100 DAF200
Skid Mounted Plant & Equipment - - -
Feed Pump Standard
Submersible o o o o o o o o
Pre-Treatment Flocculent Dosing o o o o o o o o
Polymer Dosing o o o o o o o o
pH Adjustment o o o o o o o o
PLC Control System with HMI
On Board Air Compressor o o o o o o o o
Treated Water Recycling for Saturator o o o o o o o o
Saturator Feed - Potable Water Top Up o o o o o o o o
Flow Based Chemical Dosing o o o o o o o o
Containerised System, c/w A/C & Lights o o o o - - - -
Container Insulation (walls & ceiling) o o o o - - - -
Container Non-slip Floor Coverings o o o o - - - -
Container Side Access Door o o o o - - - -
Additional Pre DAF Treatment o o o o o o o o
Additional Post DAF Treatment o o o o o o o o
Premium Instrument Package o o o o o o o o
Sludge Pump o o o o o o o o

 

Instrumentation Standard Package Premium Package
Pressure Gauges
pH Transmitter (4-20mA)
Pressure Reducing  Valve
Flow  Switch -
Flow Transmitter (4-20mA) -
Sludge Hopper Level -
Remote Monitoring & Control Capabilities -

Disclaimer: MAK Water is continuously updating and improving its products and services, so please contact us for more detailed information or to confirm specifications. MAK Water takes no responsibility for any errors resulting from the use of information contained within this document .


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