Program Profile PR-271

OxiPRO Microbial Control Technology is a patented and integrated program that effectively controls microbial growth and deposit-formation in papermaking systems. Uncontrolled microbial growth can negatively impact the profitability of the papermaking operation through:

• Machinedeposits

• Sheetspots,holes

• Breaks

• Offensiveodorintheprocessand in the sheet

• Hazardousgasproduction

• IncreasedWashUps

• Increasedboiloutsand unscheduled shutdowns

• Increasedwaterandenergyusage

• Underdepositandcorrosion

• Increasedsafetyrisk

OxiPRO Microbial Control Technology incorporates Nalco’s comprehensive mechanical,operationalandchemi-calapproachtooptimizingthedepositcontrolprogram,including:

1. Systemspecificchemistries

2. Real time monitoring

3. Application Expertise and docu-mentedBestPractices

System specific chemistries:OxiPRO Technology uses the optimum chemistry for the process conditions. Using a foundation of stabilizedoxidants,theprogramcan be complemented with tra-

OxiPRO™ Microbial Control TechnologyOn-site, Real-time Monitoring and Control

Figure 1 — The OxiPRO feeder generates stabilized oxidants on site safely and delivers it to the right place in the process, at the right concentration, and at the right time.

ditional biocides to deliver broad spectrum efficacy across various grades and furnish types. OxiPRO chemistries have been successful infreesheet,woodcontainingandrecycled pulps.

OxiPRO technology uses a complete rangeofstabilizedoxidantsincluding:

• Acosteffectiveinorganic stabilizerthatproducesa monochloramine intermediate

• Apatentedorganicstabilizerthatcan reduce corrosion potential

• Avariablystabilizedoxidant program where the benefits of fullstabilizationmaynotbe indicated

Bybringingallofthebestavailabletechnologytothemarket,OxiPROtechnology has the largest number of options to effectively controls microbial growth and deposit-for-mation in papermaking systems

The chemical program is delivered by a slug feed strategy or continu-ous feed through a carefully engineered Nalco designed feed system built to exact standards. The feed system has been designed with intelligent features that safely delivertherightdose,intherightplace,attherighttime.

Your Nalco sales rep can help determine which combination of chemistries is best for your sys-tem through a thorough system assessment.

Figure 2 – The OxiPRO Monitor incorporates bulk water and surfaces in a measuring device that continuously records microbial activity without the need for reagents.

Real Time MonitoringOxiPRO technology integrates the paper machine operation with an assessment of the microbial populations in the process.

Traditional microbial monitoring testing techniques are labor intensive that limit the frequency of analysis and a significant time lag to give useful operational information in time to make fine adjustments to the program.

The OxiPRO online real time moni-tor is able to rapidly and continu-ously evaluate the viability of a mi-crobial population and the efficacy ofthebiocideprogram.Increasingthe frequency of the analysis and linking the operational data cre-ates a powerful combination that changes the way papermakers look at deposit control programs.

Faster ATP measurement tech-niques have given better insight into the variable paper process and allowed for more direct match-ing of the impact of uncontrolled microbial growth. ATP measure-ments are also used to trouble-shoot systems during process upsets.

Insteadofreactingtoinformationonsystemswitha48hourlagtime,the OxiPRO technology approach detects variations sooner and al-lows for proactive operational or chemical changes to be made.

The OxiPRO monitor is capable of being connected to the internet securely via a direct mill provided connection or wireless cell technol-ogy. This provides:

• Automaticreportstobesentthrough email that are accessible via computer or smart phone

• MonitoralarmsthatcanbesentviaSMStextmessageindicatingof possible upset conditions

• Realtimeremoteaccesstotheprocess data by the local team and application experts to aid in troubleshooting problems

Application ExpertiseNalco continues to be a market leader in papermaking microbial controlincludingchemistry,tech-nology,andthepeoplewhodevelopandapplytheprograms.Salesengineers and technical service representatives work to understand

ourcustomers’process,policies,and procedures to design your programtobesafe,effective,andsustainable.

The local team is supported by a global network of application experts,researchers,andanalyticalscientists using the latest knowl-edge,andtechnologytodeliversuccessful programs.

A) Traditional approaches can miss entire events. making effective density control difficult.

Figure 3 – Continuous and representative sampling (bulk water and surfaces) vs. traditional batch testing approaches (standard plating and ATP).

Act

ivity

Time Time

B) The new approach provides a continuous assessment of microbial growth and activity in the system. This allows for changes to be made immediately to keep the system in control.

Act

ivity

Someofthetoolsusedinclude:

• TrendGen,aNalcoexclusivesoftware program that integrates multiple data sets from a number of sources for fast in depth analysis.

• WellCareAuditsarescheduledafter the program has been applied for several months. Application experts work with the local teams to confirm that the program is performing as expected,respondtoupcomingchanges in the process or grade mix,andensurethelocalteamhas best practices in place.

• Connections,aknowledge management system that puts theformalizedinformationinthe hands of the local teams. Informationpostedtothis resourceiscomposed,devel-oped and vetted to be accurate and concise and help local teams respond.

OxiPRO Deposit Control Technology contributes both a financial and environmentalreturnoninvestment(eROI)asreportedindocumentedeROIvaluesforourcustomers.Morethansimplemicrobialcontrol, OxiPRO technology can deliver sustainable value to the papermaking process.

eROI Value Propositions

ASSETS

• Engineeredfeedequipmentintegratedintothemillprocesscontrolsystem preventing accidental and unnecessary application reducing potential for worker exposure

• Alarmedmonitorstoreducetheincidenceofoverandunderfeeding• Onlinemicrobialactivitymeasurementinsuresonlytherequired

amount of treatment is applied • Eliminatinghazardousprocessgasgenerationthroughproperwater

treatment

• Increasedproductionthroughlessdowntimeforbreaks,wash-ups, and boil outs

• Increasedproductionthroughlessoffspecificationproduct• Reducedcorrosionpotentialthroughapplicationoflessvolatile,

less aggressive chemistry• Reducedcorrosionbyeliminationofunderdepositmicrobialinduced

corrosion(MIC)

• Reducedwaterusagefromlesswash-upsandboilouts• Improvedwaterqualityforonmachinecleanliness

• Increasedproductionefficiencyreducesprimarysludgegenerationand discharge to landfill

• Reduceduseofchlorinecompounds

• Reducedsteamconsumptionnotneededtoreheatfresh process water

• Reducedmicrobialbaseddepositioninpressclothingimproves dewatering efficiency resulting in less drying steam required

WATER

EARTH

ENERGY

SAFETY

Complimentary ApplicationsOxiPRO Microbial Control Technology is complimented by other Nalco technologies.

• BoiloutsandCleaningprogramsare the cornerstone to good microbialcontrol.Startingwithclean surfaces and cleaning areas of stagnant stock build-up eliminate areas where micro- organisms can flourish and re-seed the system.

• FabricCareandCleaning programs remove areas for depositions and contaminants to build allowing microbial populations to become estab-lished and further reduce fabric performance and fabric life.

• RetentionDrainageand Formation programs retain and distribute small particles in the sheet so they can be sold rather thancreatingagglomerations,depositsonpiping,andseedpoints for microbial deposits.

• Freshwaterclarificationanddisinfection programs eradicate viable fresh water organisms fromenteringtheprocess.Byreducing turbidity carryover the incoming organic load is reduced decreasing the demands on the microbial control program. Additional benefits of color removal and other detrimental substances reducing bleaching efficiency,scale,andmetalsde-position can improve operational efficiency and preserve assets.

Ordering InformationContact the appropriate Paper ServicesDivisionGradeTeamor the Expertise Center for Deposit Control to determine if OxiPRO Microbial Control Technology is suitable for your application.

OxiPRO, TrendGen, Ecolab, NALCO and the logos are Trademarks of Ecolab USA Inc.©2007, 2015 Ecolab USA Inc. All Rights Reserved 10-15

Nalco, an Ecolab CompanyNorth America: Headquarters – 1601 West Diehl Road • Naperville, Illinois 60563 • USA Nalco Champion – 7705 Highway 90-A • Sugar Land, Texas 77478 • USAEurope: Richtistrasse 7 • 8304 Wallisellen • SwitzerlandAsia Pacific: 2 International Business Park • #02-20 The Strategy Tower 2 • Singapore 609930Latin America: Av. das Nações Unidas 17.891 • 6° andar • São Paulo • SP • Brazil • CEP 04795-100

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