3D TRASAR Technology Nalco Company

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3D TRASAR Technology Nalco Company

• By Bryan Curran

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Table Of Contents

• I Background
• II 3D TRASAR Technology
• III The Chemistry
• IV The Numbers
• V The Present
• VI Conclusion
• VII References

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The Nalco Company, located in Naperville, Illinois
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I Background

• The Cooling systems used at most commercial
  buildings, including offices, universities,
  hospitals and stores consume vast quantities of
  water.
• These cooling systems can also develop mineral
  scales and microbes which lead to increased water
  and energy consumption and negative environmental
  impact.
• Mineral scales consist mostly of carbonates of
  calcium and magnesium forming on heat-exchange
  surfaces.
• These mineral scales makes heat transfer
  inefficient and increases the use of energy on
  the system.
• Microbial growth can lead to the formation of
  biofilms which in turn also decreases the
  exchange efficiency.

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Pictures taken from http//www.process-cooling.co
m/Articles/Feature_Article/d9f50dd35c2bd010VgnVCM1
00000f932a8c0____
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• High levels of biocide intended on cleaning up
  the water and preventing biofilm on heat exchange
  surfaces causes several effects.
• Increased corrosion of system components.
• Increased risk of system leaks
• Metal-containing byproducts of corrosion and
  additional biocide are discharged with the
  cooling water
• Whenever water is discharged it is called a
  blowdown.
• In other words, pollutants are released in the
  wastewater and fresh water is used to replace the
  blowdown.

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• Inside the Boiler

http//thermgard.com.au/index.php?pageid2330
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• Before 3D TRASAR technology, other companies
  traditionally used antiscalants and
  antimicrobials at regular intervals or at best.
• Sodium Aluminate was first used to help stop
  microbial growth and to keep the heat exchange
  surfaces clean.
• Sodium Aluminate also helps to remove Silica and
  Phosphates.

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• However when there was a blowdown, Silica and
  Phosphates still entered our environment.
• Silica is dangerous in small quantities over
  time, OSHA allows 0.1 mg/m3.
• Small inhalation can cause silicosis, bronchitis,
  or cancer, due to the formation in the lungs
  decreasing lung capacity.

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II 3D TRASAR Technology

• Instead of on a fixed schedule
• 3D TRASAR technology helps monitor the condition
  of cooling water continuously and add appropriate
  chemicals only when needed.
• This technique helps to
• Save water and energy
• Minimize the use of water-treatment chemicals
• Decrease environmental damage from discharged
  water

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• What does the 3D in 3D TRASAR Technology stand
  for?
• Detects if the parameters are changing
• Determines the correct course of action
• Delivers exceptional economic and operational
  advantage
• 3D TRASAR uses unique chemistries, sensors,
  algorithms, hardware and software to provide
  online, real-time performance-based detection
  ability.
• The main sensor is the Nalco Corrosion Stress
  Monitor which detects and responds to preboiler
  corrosion stress in real time, delivering
  direct measurement under actual operating
  conditions.
• The Nalco Corrosion Stress Monitor helps
  prevent by measuring and reacting to the net
  oxidation/reduction potential of the water.
• The monitor determines the corrective action
  and responds in real-time by changing oxygen
  scavenger or metal passivator feed to protect
  the system.

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• The Controller used is the 3DT-5000 Controller
  which helps to collect the pH, ORP,
  conductivity and turbidity data. It also
  incorporates two corrosion sensing probes, which
  helps to calculate the systems volume,
  recirculation, make-up, blowdown, and heat
  rejection rates.
• The beauty of 3D TRASAR is that it is a
  universal device all wrapped in one.
• It features contain a Scale Control, a
  Bio-Control, and a Corrosion Control.
• For the Scale Control, it helps to detect the
  upset preceding a scaling event and takes the
  action of preventing one again, when founded the
  3D TRASAR will increase stress to help minimize
  operating cost.
• The Bio-Control unit is only applied when the
  bio-activity in the water increases or
  decreases.
• Corrosion control helps by combining advanced
  control capabilities with innovative new
  corrosion inhibition chemistry to provide the
  best solution to your problem.

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III The Chemistry

• The boiler uses a fluorescent tagged scale
  dispersant polymer with an inert fluorescent
  tracer
• This was added to provide scale/deposit
  inhibition, particle dispersion and to enhance
  activity of corrosion inhibitors.

?
?
?
R?H
Monitoring and Dosage Control of Tagged Polymers
in Cooling Water Systems, John E Hoots
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• Resazurin, which is another fluorescent molecule,
  changes its fluorescent signature when it
  interacts with respiring microbes.
• Is used for the real-time test for measuring
  planktonic and sessile bacteria.
• By adding Resazurin, this generally helps reduce
  the use of biocide and also prevents biofilm from
  building up on surfaces and maintaining efficient
  heat transfer.

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http//www.process-cooling.com/PCE/2006/09/Files/I
mages/pce0906_F5-nalco-fig1-LG.jpg
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http//www.process-cooling.com/PCE/2006/09/Files/I
mages/pce0906_F5-nalco-fig3-LG.jpg
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IV The Numbers

• Since 2004 their waste has decreased 15 while
  their production increased 15.2.
• Image Green House Gas Emission.

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• Greenhouse gas emissions declined 3.5 percent,
  while production increased 5 percent. Over the
  past five years the greenhouse emissions
  increased 2.3 percent, a much slower rate
  however the production increased more than 15
  percent over the same period
• In 2008 Nalcos global energy efficiency has
  decreased by 3.2 percent while production has
  increased by 5 percent.
• Since 2004 the production has increase 15.2
  percent while energy consumption increased 2.3
  percent.

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V The Present

• In 2007 and 2009, Nalco was given The
  Pennsylvania Governor's Awards for Environmental
  Excellence for its waste minimization and water
  use reduction.
• In 2010 and 2011 was given two consecutive
  Environmental Leadership Award, for its
  environment and pollution prevention.

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• VI. Conclusion
• 3D TRASAR won the 2008 Greener Reaction Award
• Some of the key factors that the 3D TRASAR
  Technology helps with is
• It monitors the cooling water
• Adds chemicals when needed, not on a schedule
• Helps save water and energy
• Minimizes the use of water-treatment chemicals
• Decreases environmental damage from discharged
  water
• http//www.nalco.com/services/3d-trasar.htm

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• VII. References
• lthttp//www.epa.gov/greenchemistry/pubs/docs/award
  _entries_and_recipients2008.pdfgt
• lthttp//www.nalco.com/services/3d-trasar.htmgt
• lthttp//www.redorbit.com/news/science/1447457/nalc
  o_wins_presidential_green_chemistry_challenge_awar
  d_for_3d_trasar/ gt
• lthttp//www.tradelineinc.com/pr/51A1C248-2B3B-B525
  -8FE0A4230CC689FEgt
• lthttp//extranet.nalco.com/asp/services/applied/tr
  asar/Trasar_Cooling.aspgt
• lthttp//www.3dtrasarboiler.com/index.php?mktchemgt
  
• lthttp//www.ethanolproducer.com/article.jsp?articl
  e_id902qpage2gt
• lthttp//www.process-cooling.com/Articles/Feature_A
  rticle/d9f50dd35c2bd010VgnVCM100000f932a8c0____gt

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• THANK YOU