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QFS TECHNOLOGYDEGASSING USING HOT MICROBUBBLES MEDIATED BY FLUIDIC OSCILLATOR

By Edmund Koh

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CONTENT

Background and

Motivation

What, why and how

Microbubbles?

Research Project

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CHRONIC KIDNEY DISEASE

End Stage Renal Disease

Increased Life

Expectancy

Lifestyle choices

Modern Diet

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DIALYSIS AS A FORM OF TREATMENT

Picture from: https://psnet.ahrq.gov/webmm/case/224/dangerous-dialysis [Accessed on 15/11/2015]

Picture from: http://3.imimg.com/data3/ME/LC/MY-3330897/nipro-diamax-dialysis-machine-500x500.jpg [Accessed on 15/11/2015]

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QUANTA FLUID SOLUTIONS

Picture from: http://www.quantafs.com[Accessed on 15/11/2015]

New Generation Model

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MICROBUBBLESWhat?

Why?

How?

0.001mm< d >1mm

Mass transfer equation

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RESEARCH PROJECT

Degassing

Removal of dissolved unwanted gases

Sterilisation

Removal of biological agents in the water using Ozone

Heat Transfer

Controlled heating through direct contact evaporation

Single step process

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OBJECTIVES

Literature Review

Feasibility Testing

Optimisation

Scale to Product

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PROCESS AND INSTRUMENTATION

DIAGRAMProcess flow

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ASPEN PLUS

Ozone

GPOG DZFOMFC

Dialysate

AirHXSR

MFC Mass Flow ControllerOG Ozone GeneratorGP Gas PreheaterDZFO Dezai Zimmerman Fluidic OscillatorHXSR Heat Exchanger Sterilization Rig

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TIMELINE

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SUMMARY

Replacing Inconvenient

traditional dialysis

treatments

Liaise with QFS to development next generation

model

Integration of degassing, sterilisation

and heat transfer into a

single step process

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THANK YOUAny Questions ?

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THANK YOUAny Questions ?

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KEY COMPONENTS OF DIALYSATE CIRCUIT Heating Deaeration Proportioning Monitoring Ultrafiltration Disinfection

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HOW DOES IT WORK Once pure product has been generated,

bicarbonate and acid solutions are mixed with water to form dialysate solution.

Mixing or proportioning is done in the dialysis unit

Several components of proportioning ensure safe dialysate is monitored by a series of alarms, pumps and monitors

Fluid ultrafiltration occurs by volumetric or flow sensor controllers.

Disinfection prevents bacterial over growth

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OTHER METHODS OF PRODUCING MICROBUBBLES First class uses compression of air stream to

dissolve air into liquid, which is subsequently released through a specially designed nozzle system, to nucleate small bubbles based on cavitation principle

Second class uses power ultrasound to induce cavitation locally at points of extreme rarefaction in the standing ultrasonic waves

Cavitation is formation of bubbles in liquid.