10.09-MicrofloatCaseHistCompDAF

8/2/2019 10.09-MicrofloatCaseHistCompDAF

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Aeration Industries Internation

AIRE-O2 MicrofloatDAF Case

0

500

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FOG

Concentration

(mg/L)

Microfloa

Cargill MeatsThailand

Cargill Meats Korat Plant in Thailand is a chicken processing facility. TheDAF system installed at the plant receives wastewater generated by theboiling and frying processes. The plant had an existing circular concretetank that they wanted to use for the DAF system. Aeration Industriesretrofitted the existing basin to incorporate all of the internals for astandard AIRE-O2 Microfloat

DAF system. The current designincorporates two (2) Microfloat Aerators. In the future, the design flowand load through the DAF is expected to double. When this occurs, theplant will simply add two (2) additional Microfloat Aerators to handle theadditional capacity. Currently the plant is in operation 24 hours/day withan equalization tank ahead of the DAF to even out the flow through thetreatment system. The plant is feeding approximately 25 ppm of PAC and2 ppm of Cationic Polymer for chemical conditioning to insure high

removal efficiency

Process: Chicken ProcessingFlow: Present Avg. = 264,172 gpd (1,000 m3/day)Equipment: 20 (6.1m) diameter AIRE-O2 Microfloat DAF Systemretrofitted into existing circular concrete tank


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Jones DairyWisconsin, USA

Jones Dairy is a sausage processor in Wisconsin. The company wasfaced with rapidly rising surcharges from the local municipal wastewatertreatment plant that received the companys wastewater. The companyhad an existing rectangular conventional DAF system but the system wasnot performing very well. The company retrofitted the existing DAF tankto add two (2) AIRE-O2 Microfloat

Aerators. In doing so, Jones Dairywas able to more than double their removal rates of suspended solids andfats, oils, and grease, thereby significantly reducing the monthlysurcharges from the local municipality.

Process: Sausage ProcessingFlow: Present Avg. = 175,000 gpd (662 m3/day)Equipment: 30 wide x 55 long x 7 deep rectangular conventional DAFsystem retrofitted with two (2) AIRE-O2 Microfloat Aerators

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500600

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800

900

FOG

Concentration(mg/L)

Microfloat


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Superstar Coconut Products Co., Inc.

Philippines

Superstar Coconut Products Co., Inc. is a desiccated coconut plant. Itswastewater contains high BOD and FOG which needs a comprehensivetreatment system.

The existing Wastewater Treatment Plant (WWTP) utilizes a straightactivated sludge treatment process without an oil removal system. Thiswas enhanced by installing 2 AIRE-O2 Microfloat

DAF systems unitsoperating in series to provide maximum recovery of oil from thewastewater & produce a valuable by-product for the plant.

Process: Desiccated Coconut Processing

Flow: Design= 158,503 gpd (600 m3

/day)Equipment: (2) 20 (6.1m) diameter AIRE-O2 MicrofloatDAF Systems

operating in series and retrofitted into existing steel tanks

DAF CLARIFIER 2

DAF Microfloat Scum Scraper

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2000

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40005000

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8000

FOG B

Concentration(mg/L)

Microfloat D


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Tony Dairy

Ecuador

Tony Dairy is a food processor in Ecuador that manufactures dairyproducts such as ice cream, yogurt, etc. They installed a Microfloat DAFsystem for removal of FOG, TSS, and BOD from the plants processwastewater. The tankage and internals were supplied in 304 SS topreserve the quality of the float produced by the Microfloat DAF which theplant can recover as a valuable by-product. They are adding nochemicals to facilitate removal and are achieving in excess of 87% TSSremoval and 92% FOG removal.

Process: Dairy ProcessingFlow: Present Avg. = 29,000 gpd (110 m3/day)

Equipment: 9 (2.74 m) diameter SS Microfloat DAF System

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FOG

Concentration(mg/L)

Microfloat DA


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10.09-MicrofloatCaseHistCompDAF

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