Aerofloat designs, manufactures and installs simple, affordable wastewater treatment systems using its patented Dissolved Air Flotation (DAF) products and patent pending MBBR systems (Moving Bed Biofilm Reactor).

Aerofloat specialises in the treatment of greywater and industrial wastewater from a range of industries.

Aerofloat™ (Australia) Pty Ltdwww.aerofloat.com.au 1/60 Box Rd Taren Point, NSW 2229

Phone + 61 (0)2 9544 1449Fax + 61 (0)2 9527 1052 ABN 72 145 239 185Email: enquiries@aerofloat.com.au

www.aerofloat.com.au

Patent Pending Aerofloat MBBR

Patented Modular Aerofloat DAF

Patented Single Tank Aerofloat DAF

Product description What is the Product? Aerofloat is a unique and affordable Dissolved Air Flotation (DAF) product with capacities from 7-800 Litres per minute (L/min) or 0.4 - 50 m3 per hour (m3/h).

The Treatment Process The basic principle of the Aerofloat product involves pumping a side stream of treated effluent to an elevatedpressure, dissolving air under pressure (supersaturating with air) and then allowing the side stream to decompress suddenly. This causes millions of microscopic bubbles to form as the dissolved air comes out of solution.

This side stream then mixes with the incoming waste stream which has been coagulated and flocculated with suitable chemicals.

The microscopic bubbles attach to the flocculated particles and float them to the surface. The system automatically pushes the thickened float off the top of the tank.

PATENTEDWORLD FIRST TECHNOLOGY

Model Number (L/min) (m3/hr)Model 7 7 0.4Model 13 13 0.8Model 50 50 3Model 100 100 6Model 200 200 12Model 400 400 24Model 600 600 36Model 800 800 48

Aerofloat 100 - Patented Aerofloat DAF

AEROFLOAT DISSOLVED AIR FLOTATION

COMPACT, SIMPLE, LOW MAINTENANCE, AFFORDABLEDISSOLVED AIR FLOTATION (DAF)

Why Aerofloat DAF?Product Features• Sealed and vented DAF tanks: creates an odourless treatment plant environment• Self-cleaning system: 60-degree hopper bottom tank recirculates treated water (and potential fallen solids) through an air saturator• Patented waste removal system: DAF Tanks are self-cleaned by funnelling floated waste through 60-degree removable hopper top, eliminating the need for mechanical scrapers• Actuated valve on the outlet pipe work to control DAF water level for removing float material to the waste tank• An electrical control panel with an inbuilt PLC for automatically controlling the feed pump, coagulant and flocculant dosing pumps and the entire Aerofloat DAF system• Rotomoulded polyethylene tanks

Benefits • Mechanically simple design: results in low maintenance and minimal down time• Compact design due to minimal mechanical componentry• Affordable solution created through innovative engineering and lower costs of construction

Aerofloat 800 - Patented Modular Aerofloat DAF

Aerofloat 100 - Installation

MODULAR DAF TECHNOLOGY

C

C C

3. AUTO-VALVE CLOSED WASTE REMOVAL

1. AUTO-VALVE OPEN START

2. AUTO-VALVE OPEN WASTE FLOTATION

E�uentValve

Compressorwith Regulator

DissolveruPVC Pressure Pipe, �ttings and SS Flange

Solenoid Valve

RecirculationPump

CoagulationCoil

FlocculantDosing Pump

CoagulantDosing Pump

Feed Pump

Saftey Valve

Pressure raisingOri�ce

C

F

C

F

F

C

WASTEWATER

SCREEN

BALANCE TANK

ACID & CAUSTIC DOSING

AEROFLOAT DAF

WASTE TANK

TREATED EFFLUENT

PATENTED FLOAT REMOVAL PROCESS

TYPICAL PROCESS FLOW DIAGRAM

NO MECHANICALSCRAPERS

MECHANICALLY SIMPLE

Applications for Aerofloat DAF?Dissolved Air Flotation (DAF) is a proven and effective physical/chemical technology for the removal of oils & greases and suspended solids. The Aerofloat DAF is ideally suited for industrial and municipal wastewater streams as well as greywater treatment and/or reuse.

DAF systems are commonly used for:• Pre-treatment to meet sewer discharge limits• Pre-treatment to reduce loading on downstream biological treatment systems• Polishing of biological treatment effluent• Thickening of bio solids• Treatment of greywater from large residential facilitiesSpecific industrial and municipal applications include: Industrial Applications

• Dairy and milk products• Poultry processing• Meat processing• Laundries and textiles• General food processing• Byproduct rendering• Pulp and paper• Plastics recycling• Bakeries• Beverage

Municipal Applications• Waste activated sludge thickening• Biological solids clarification• Phosphorous removal• Algae removal• Greywater treatment from large residential buildings

INDUSTRIAL WASTEWATER GREYWATER

Aerofloat 200 - Patented Aerofloat DAF

AEROFLOAT MOVING BED BIOFILM REACTOR

MBBRWhat is the Product? Moving Bed Biofilm Reactor (MBBR) process is a fixed-film/attached growth biological treatment process used for municipal and industrial wastewaters.

The Treatment ProcessA MBBR consists of a tank with suspended plastic bio-media. Due to the shape of the media there is a large surface area to assist with bacterial growth. Oxygen for the process is provided through air spargers or lances installed at the bottom of the reactor which creates a positive Dissolved Oxygen (DO) concentration for Biological Oxygen Demand (BOD) removal. A screen is placed around the outlet to keep the media within the reactor. An Aerofloat DAF is normally placed downstream of the MBBR reactor to separate the suspended biomass which breaks off the bio-media. Generally sludge recycle is not required for this process.

Applications MBBR technologies can be used for wastewater treatment for many industries: food and beverage plants, dairy industries, water recycling, and any industries requiring wastewater treatment for BOD removal.

Patent Pending MBBR lance

Why Aerofloat MBBR?• Oxygen for the process is provided through air spargers or lances installed at the bottom of the reactor. Aerofloat has a patent pending design for its spargers which allows the spargers to be removed from the reactor while the process is still operating, without draining the tank or removing the bio media.

• Works efficiently in combination with the Aerofloat DAF downstream to: - Remove excess solids from the effluent - Thicken excess biomass prior to disposal - Return a proportion of the biomass to the MBBR reactor

• MBBR technology has become the preferred biological treatment technology because it offers several advantages over the traditional Activated Sludge processes. Also, due to lower costs and higher treatment rate, MBBR technology is preferred over Membrane Bio Reactor (MBR) technology in most cases.

• The MBBR reactor typically removed 60-80% BOD and therefore can reduce the load to the downstream Activated Sludge process resulting in very efficient treatment with a lower footprint. Some key features of the MBBR process are provided below.

Benefits • Robust – stable under varying load conditions producing consistent effluent quality.

• Efficient – generates low solids and requires minimal or no polymer for solid/liquid separation

• Compact – requires a small footprint. Typically it requires 1/3 of the space of an Activated Sludge process

• Cost – significantly lower cost then activated sludge and Membrane Bioreactor (MBR) systems.

• Flexible – existing plants (such as SBRs) can be easily upgraded to handle higher loads.

• Trouble Free - easy to operate, has automatic sludge wasting, no sludge return, no issue of media clogging and no Mixed Liquor Suspended Solids (MLSS)

Patent Pending MBBR lances

Aerofloat™ (Australia) Pty Ltdwww.aerofloat.com.au 1/60 Box Rd Taren Point, NSW 2229

Phone + 61 (0)2 9544 1449Fax + 61 (0)2 9527 1052 ABN 72 145 239 185Email: enquiries@aerofloat.com.au

Patented Modular Aerofloat DAF

www.aerofloat.com.au

Aerofloat engineers have extensive experience in the water and wastewater industry. This, together with the innovative product range, Aerofloat is able to complete a full treatment design, construct and installation option or provide advice and consultative services.

Typical PerformanceIndustrial Wastewater Treatment Generally chemical jar testing is completed for most industrial wastewaters to confirm performance of the Aerofloat technology. Aerofloat engineers are happy to visit any potential sites and prepare an obligation free wastewater treatment proposal.

While results will vary depending on the wastewater being processed, typically, > 95% removal of FOG and SS can be expected with the Aerofloat DAF.

Aerofloat 100 - Installation