May 2016

When does Mixing Matter? A Primer on Industrial Mixing

Status: This course has been cancelled. A new date will be schedule in Fall 2016.
Date: Monday, May 30, 2016
Time: 8:00 AM-8:30 AM: Registration and Breakfast
8:30 AM-4:30 PM: When Does Mixing Matter? A Primer on Industrial Mixing
Location: Vancouver, BC
Presenter: Dr. Suzanne Kresta, P.Eng., F.E.C., 
Associate Dean, Faculty of Graduate Studies and Research, Faculty Affiliate, Center for Teaching and Learning, Professor, Chemical and Materials Engineering, University of Alberta
Credit: 7.5 Formal Professional Development Hours (PDH)
Cost: Early Bird Price Engineers and Geoscientists BC Member: $419.00 + GST = $439.95 until May 16, 2016

Engineers and Geoscientists BC Member and EIT/GIT Regular Price: $519.00 + GST = $544.95

Non-Member Price: $519.00 + GST = $544.95

Student Member Price: $259.50 + GST = $272.48
Please Note: *A minimum number of registrations are needed by May 16, 2016 to proceed with this seminar. Please register early to avoid cancellation.
**All prices are subject to applicable taxes.
Contact: Jennifer Chan | Professional Development Coordinator
Direct: 604.412.4861
Toll Free: 1.888.430.8035 ext.4861
Fax: 604.639.8180
Email: [email protected]
In undergraduate courses, we often begin with an assumption of perfect mixing. This assumption does not always apply in real processes. New solutions to long-standing problems can be found when mixing principles are understood and applied. Mixing problems may appear as maldistribution, increased fouling, reduced yield, or increased requirements for additives.

Mixing principles can impact the performance of many systems:
  • Injection of chemicals into pipelines
  • Dumping streams into tanks or ponds
  • Sediment build up in storage vessels
  • Movement or conditioning of slurry (or pulp)

Course Objectives

By the end of the course, participants should be able to:
  1. Identify a mixing problem and break it down into process objective(s), mixing specification(s), and dominant mixing scale(s).
  2. Explain the relationship between turbulence and multi-phase mixing.
  3. Identify paths forward for more reliable scale-up and scale-down of mixing dominated problems.
  4. Apply mixing principles to operational troubleshooting, pinpointing mixing problems and solutions in our units and equipment

Course Outline


  1. Introduction to mixing – what is mixing and when does it matter? 
  2. How to specify mixing requirements for a process problem
  3. Blend time and large scale segregation of solids and liquids


  1. Micro-mixing and turbulence: emulsions, mixing sensitive reactions, mass transfer limitations
  2. Meso-mixing – effects of local concentrations and competing rates
  3. Scale-down – how to investigate mixing problems at the bench scale

Target Audience

Chemical and Mechanical Engineers

Recommended Text:

Advances in Industrial Mixing, Wiley, 2015. This book includes the Handbook of Industrial Mixing (Wiley, 2004) in searchable pdf format and 21 video tutorials on the basics of mixing.


Dr. Suzanne Kresta, P.Eng., F.E.C.,
Associate Dean, Faculty of Graduate Studies and Research
Faculty Affiliate, Center for Teaching and Learning
Professor, Chemical and Materials Engineering
University of Alberta

Suzanne Kresta (BSc, UNB (1986), MSc, Leeds (UK, 1987), PhD, McMaster (1992)) teaches Mass and Energy Balances (CME 265), design (ChE 464) and Mixing (ChE 420 and 620), and serves as Senior Editor of the Handbook of Industrial Mixing. Her principle research contributions are related to understanding turbulence and mixing in stirred tanks (measurement of turbulence, the use of spatial statistics to define mixing and length scales, nano-particle production, solids suspension, reactor design, and additive performance) and she has collaborated with colleagues in a wide variety of industries (including oils sands extraction and froth treatment, photographic film, drinking water treatment, mineral processing and metals refining, polymer reactor design, cosmetics, mixing equipment design, fish processing, clean-up of nuclear waste, and fertilizer production). Many of her papers are both widely cited in the research literature and used for industrial design calculations.

Her teaching interests include faculty development workshops, visual problem solving tools, the use of story telling and case studies, active learning, and explicit use of cognitive levels with learning objectives. She has served as an Iron Ring Warden since 1999, as a Peer Consultant at the University of Alberta since 2004, and has won a number of national and international awards for both teaching and research.

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