Optimize flocculation with FlocCAM and JarCAM

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Optimize flocculation with FlocCAM and JarCAM
www.FlocCam.com
TM
TM
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Coagulation Flocculation
www.FlocCam.com

• Coagulation
• add a coagulant that makes the suspended
  particles sticky

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Coagulation Flocculation
www.FlocCam.com

• Flocculation
• Gentle stirring increases particle collisions
• Particles stick together, form settleable or
  filterable floc

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Ten State Standards
www.FlocCam.com

• Coagulation
• Mixing 30 seconds
• Velocity gradient G 750 fps/ft

http//10statesstandards.com/waterrev2012.pdf
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Ten State Standards
www.FlocCam.com

• Flocculation
• Residence time 30 mins
• Flow-through velocity 0.5 to 1.5 ft/min
• Agitator paddle peripheral speed 0.5 to 3.0
  ft/sec

http//10statesstandards.com/waterrev2012.pdf
Very large ranges within guidelines for
operation... What are our goals?
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Goals of Coagulation Flocculation
www.FlocCam.com

• To change the particle size distribution to best
  suit the subsequent processes. (Han et al.,
  1999)
• To reach the conditions of dosage and pH that
  achieve a minimum particle count and turbidity,
  maximum TOC, DOC and DBP removal and minimum
  coagulant residual. (Edzwald Tobiason, 1999)
• To transform suspended colloidal particles into
  flocs that can be removed by sedimentation. (Tse
  et al., 2011)

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How do we know if were achieving these goals?
www.FlocCam.com

• Conventionally, treatment plants monitor
• Zeta Potential (streaming current monitor)
• Although it can give indication of proper
  coagulant addition, does not give information
  regarding physical properties of flocs and size
  distribution
• Settled water turbidity
• Measurement taken towards end of treatment by
  the time operator sees a problem, the problem has
  likely persisted for hours
• TOC, DOC and DBP removal
• Typically not used as direct indications that
  proper flocculation is taking place

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www.FlocCam.com
How do we know if were achieving these goals?

• Experienced operators often look in a
  flocculation basin to confirm that the process is
  healthy
• What are they trying to see?
• Average particle size
• Particle size distribution
• Average particle density
• Average particle velocity

The FlocCAM and JarCAM are tools that quantify
flocs physical properties
TM
TM
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The FlocCAM
www.FlocCam.com
TM

• The FlocCAM is designed to be mounted atop the
  flocculation basin and provide the operators
  detailed information in real-time
• Average particle size
• Size skew, indicating particle size distribution
• Average particle density
• Average particle velocity
• Average particle sphericity
• Average particle mass

TM
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FlocCAM Computer Interface
www.FlocCam.com
TM
Graph displaying two parameters over time
Live video from the floc basin
All data updated in real-time
Data is then stored in an easily-accessible file
for future reference
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FlocCAM Benefits
www.FlocCam.com
TM

• Quantifies data in real-time regarding flocs
  physical properties
• Video feed facilitates flocculation monitoring
• Data often functions as the first quantitative
  assessment that the plant is operating correctly
• Enables operators to evaluate the effects of
  miniscule chemical dose changes on flocculation
  performance, leading to chemical cost savings
• Allows operators to predict and monitor the
  number of flocs being transferred through to the
  filters, therefore lengthening filter run times
• Stored data allows operators to compare past and
  current flocculation performance
• Facilitates communication between operators
  regarding plant performance

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Ten State Standards
www.FlocCam.com

• The operator and design engineer should
  determine the appropriate G value and detention
  time through jar testing.

http//10statesstandards.com/waterrev2012.pdf
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The JarCAM
www.FlocCam.com
TM
TM

• The JarCAM is designed to be mounted on the
  side of a jar during a jar test. During the jar
  test, it provides the same data as the FlocCAM
  
• Average particle size
• Size skew, indicating particle size distribution
• Average particle density
• Average particle velocity
• Average particle sphericity
• Average particle mass

TM
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JarCAM Computer Interface
www.FlocCam.com
TM
Graph displaying two parameters over time
Live video from the floc basin
All data updated in real-time
After the jar test, data is stored in an
easily-accessible file for future reference
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JarCAM Benefits
www.FlocCam.com
TM

• Quantifies data in real-time regarding flocs
  physical properties during jar tests
• Data provides operators with numerical evidence
  to use to identify the jar with the optimal
  chemical dose
• Enables operators to differentiate between jars
  with similar chemical doses
• Stored data allows operators to compare current
• data with previous jar test data
• Facilitates communication between operators
• regarding jar test observations

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Optimize flocculation with FlocCAM and JarCAM
www.FlocCam.com
TM
TM
Durasens, LLC 141 Tompkins Ave, Pleasantville, NY
10570 T 914 747 7205 F 914 747 7209 E
info_at_FlocCAM.com www.FlocCAM.com