Wastewater Treatment - Refinery

8/13/2019 Wastewater Treatment - Refinery

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Water Technologies

TotalWastewaterManagement forthe PetroleumRefining andPetrochemical Industries


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A partnership with Siemens Water

Technologies gains a host ofbenefits for you: We provide more than 100

different products and processesfor dealing with wastewater and will customize a solutionspecifically for your facilities.

We deliver the full spectrum ofservices from initial design,engineering and pilot/laboratorystudies for water, wastewaterand recycling/reuse issues.

We assume the risks and

responsibility for the completedesign of your wastewatersystem freeing you toconcentrate on enhancing theprofitability of your corebusiness.

We are experts at processoptimization of downstreamfacilities resulting inoperational improvements andsignificant cost savings nowand in the future.

Wecanhelp you monetizeyour

water-relatedassets directlyreducingoperatingcostsandraising yourprofit margins.

We guarantee performance andcosts, as well as regulatorycompliance, within thedesignparameters of your operation.

Whether its oil/waterseparation,biological treatment,recycle/reuse,solids handling, VOC emissionscontrol, groundwater remediation,or in-process treatment, Siemens

Water Technologies deliverscomplete and economical solutionsfor the petroleum industry.

These solutions are backed by thewastewater treatment industrysmost comprehensive range ofservices, including laboratory andpilot studies; wastewaterequipment design and supply,mobile/temporary wastewatertreatment services and wastewater

treatment process evaluations.

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In 1937,we supplied the first Aoil/water separator at a petrolerefinery on the U.S. east coast.

Primary

Oil/Water

Separation

Secondary

Oil/Water

Separation

Biological

Treatment

GroundwaterRemediation

Raw

Contaminated

To

Disposal

Groundwater

Influent

Oil

Recovery

Treated Effluent

To Disposal/

Oil Recovery

Biological

Clarification

Treated

Effluent

SolidsHandlingTo Disposal/

Oil Recovery

Solids

Handling

In-Process

Treatment

ProcessUnit

Wastewater

Petroleum Refining/Petrochemical Wastewater Treatment

Tertiary

Treatment

Siemens Water Technologies isuniquelyequippedto handleall ofthe requirements that petroleumrefining and petrochemicalcompaniesinsist on from awastewater treatment partner. Weprovide total responsiveness toconcerns of safety, toxicity andhazardous materials control andVOC containment, andwe offer

prompt, expert, worldwide service.

Our Solutions are Proven


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Primary Oil/Water SeparationFor more than 70 years, Siemens Water Technologies hasbeen providing cost-effective screening and primaryoil/water separation equipment to the petroleumrefining industry, while continuing to improve andupgrade designs to provide high levels of performanceand meet all current regulations. Our technologiesinclude the API oil water separator, corrugated plateinterceptors, hydrocyclones, the oil roll skimmer, and

other types of skimming equipment.

Our API separator design has been risk-assessed,assuring safe operation. Above ground, steel tankageprovides double-containment and visual leak detectionfor hazardous sludges and wastewater. VOCs arecontained through the use of vapor-tight fiberglasscovers. Additional safety features include non-metalliccollector components and covers, stainless steel on allwearing metallic components, deflagration vents, flamearrestors, and more.

Sludge collection hoppers, screw conveyors, flushingconnections, clean-outs, sludge withdrawal piping, andsludge pumps are designed to remove and transfer APIseparator bottoms with a minimum of maintenance andoperator attention. This is important because theinability to remove thick, sticky sludges is the mainreason collector components fail in petroleumapplications.

Our corrugated plate interceptor separator is a costeffective alternative to the API separator design forapplications with low influent solids concentrations.

Our oil skimming equipment ensures efficient and saferemoval of collected oils, even when visual observationis not possible. The operation is continuous, isindependent of oil depth in the API separator, andrequires no operator attention or adjustment.

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Oil/Water SeparationEquipment

Siemens Water Technologies has provided hundreds of API oil/waterseparators to petroleum facilities around the world for over 70 years.

Oil roll skimmers recover up to 99 percent pure oil fromAPI and CPI separators.


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Secondary Oil/Water SeparationSince the 1950s, our flotation separation equipmenthas been noted for superior removal of free andemulsified oils and suspended solids. Today, ourdissolved air flotation (DAF) and dissolved gasflotation (DGF) oil/water separators are a completesolution to the complex environmental equipmentissues facing the petroleum industry.

DAF/DGF separators may be designed either asrectangular or circular units, incorporating steel orconcrete tankage. The steel tank designs allow all

piping and tankage to be located above grade fordouble containment of hazardous wastewaters andsludges, in addition to providing visual leak detectionfor all separator components, including tankage.Options include rapid mix and flocculation zones,chemical pretreatment, float holding tank and steelbottom elevated units.

Our rectangular DAF/DGF separators can achieve floatconcentrations in excess of 20 percent oil and solids.

This concentrated float can eliminate the need foradditional thickening equipment normally associatedwith other types of flotation technology. Efficientdesign allows both flash mixing and flocculation to beintegrated into the unit without the addition ofseparate tankage. Steel tank, shop fabricated unitsare available in capacities of up to 4,000 gallons perminute (908.5 cubic meters per hour), significantlyreducing installation and construction time and costs.

DGF separators can be provided with air-tightfiberglass covers for VOC containment. In these

applications, state-of-the-art non-metallic andstainless steel collector components are designed tooperate for years in the corrosive environment ofenclosed DGF separators. Nitrogen is normally usedas the flotation gas for safety when covers arerequired for VOC control.

Specially designed, high-strength, light-weight, non-metallic collectorcomponents are designed to work in the high temperature andcorrosive environments of the petroleum industry.

DGF separators can be completely shop fabricated with VOCcontainment covers. Ancillary sludge handling, activated

carbon and recirculation equipment can also be provided.


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The innovative Folded Flow DGF separator incorporatespatented hydraulic designs in the flotation tank that allowfor hydraulic loading rates up to 10 gallons per minute persquare foot (24.4 meters per hour), and higher. This iscompared to conventional units which operate at loadingrates of 3 gallons per minute per square foot (7.3 metersper hour) or less. This unique Folded Flow separatordesign results in significant cost and space savingscompared to conventional DAF/DGF separator designs,while still offering superior oil and suspended solidsseparation.

Safety is always the most important consideration in theDAF/DGF separator designs. When potentially explosivevapors accumulate under a VOC containment cover, therecirculation/pressurization system can use inert gasessuch as nitrogen instead of air to reduce explosion risks.

Hydrocell and Quadricell induced air flotation (IAF) andinduced gas flotation (IGF) separators are well-suited forthestable, large volumewaste streams generated by oilfieldand oil platform applications. Theseseparators have fewmoving parts and comparatively small footprint units

feature a gas-tight designfor VOC and/or odor control.The Auto-Shell deep bed, walnut shell media filter issuited for those applications when nearly all free oil mustbe removed from a waste stream. The system offerslonger on-line time before oil breakthrough, and has zeroupstream flow interruption, preventing feed pump deadheading.

Cost effective circular DAF/DGF units are available in

numerous standard and custom configurations.

The Auto-Shell filter is well suited for those applicationswhere biological wastewater treatment is not available andeffluent free oil concentrations of 5 mg/l or less are required.

Siemens Water Technologies offers induced air flotation (IAF)and induced gas flotation (IGF) separators suited for thoseapplications with limited space for equipment.


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The Right ProcessThere is a right biological treatmentprocess for your application, andSiemens Water Technologies offers it.We have more biological treatmentprocesses than anyone in thebusiness; consequently, our processengineers have the knowledge ittakes to select the best biological

treatment system for yourapplication.

We evaluate each application for VOCstripping potential, ease of coveringfor VOC containment, ability to nitrifyand possibly denitrify, flexibility totreat shock loads of organiccompounds, area requirements,capital costs, operating costs,discharge requirements, and more.

Jet aeration offers high oxygentransfer efficiencies and excellentmixing characteristics in all types ofwastewaters. The strong mixingaction of the VARI-CANT jet aerationsystem is independent of airflowrates, consequently, oxygen transferrates can be easily matched to varyingprocess conditions.

The rotating biological contactor(RBC) is a major refinement ofconventional trickling filter fixed filmtechnology. Where shock loads oforganic compounds or toxics havebeen found to have serious negativeimpact on activated sludge systems,the RBC process has been found tobe much more resilient and in mostcases shows no impact from theshock loads in side-by-side pilot

studies.

Biological Treatment

Our package plants for biologicaltreatment can economically handleclarification, aeration and digestion in

a single modular unit.

Combined biological processes:MBBR / IFAS suspended growth

systemsSurfact systemsRotating biological contactors

(RBC) solids contact systemsTrickling filter solids contact

systemsPACT powdered activated

carbon systems

Fixed film biological processes:MBBR / IFAS suspended growth

systemsTrickling filtersRotating biological contactors

RBC systems

Suspended growth biological

processes:Mechanical aerationPetro membrane bioreactor

(MBR) systemsCoarse bubble aerationDualAir and Rex-Flex fine

bubble aeration systemsBionutre nutrient removal

systemsVARI-CANT jet aeration systemsOMNIFLO sequencing batch

reactorsOrbal aeration systemsSim-Pre aeration systemsVLR vertical loop reactor

systemsVertiCel systems

Anaerobic TreatmentPaques anaerobic treatment

systems

The modulardesign of the RBCsystemallows unitsand tankageto be completely shop fabricated.


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PACT systems help refineries meet bioassayrequirements. To treat complex wastewaters,groundwater and contaminated runoff in one step,the system adds powdered activated carbon to anaerobic or anaerobic biological process. The carbonthen buffers the biological system against toxicorganics in the wastewater. When coupled with ourZimpro wet air regeneration system, sludge iseliminated and the carbon is regenerated for reuse.

The Orbal aeration system, using completely mixedreactors in series, provides economy, flexibility andreliable treatment performance, while minimizingtotal cost by employing multi-wall construction. Theuse of three channels, operating in series, allowsdissolved oxygen levels to be varied from channel tochannel. This arrangement ensures nitrification ofnearly all ammonia in the wastewater. Also, byrecirculating effluent from the third channel to thefirst, and running the first channel at a zero dissolvedoxygen condition, total nitrogen removal can be

achieved at a lower power cost than conventionaloperation for nitrification only.

The VLR system is a modification of the Orbal systemdesign, allowing this technology to be used atlocations with limited room for wastewater treatmentequipment, or with those biological treatmentsystems which may need to be covered for VOCcontainment.

Our OMNIFLO sequencing batch reactor (SBR), is afill-and-draw, non-steady state activated sludgeprocess, in which one or more reactor basins are filledwith wastewater during a discrete time period, andthen operated in a batch treatment mode. The SBRaccomplishes equalization, aeration and clarificationin a timed sequence, in a single reactor basin. TheOMNIFLO system can handle influent flows rangingfrom zero to four times design, and a wide range oforganic loads and industrial pollutants.

PACT systems are particularly well suited for those downstreampetroleum applications where low effluent COD levels are required orwastewater reuse is desired.

Our Orbal aeration systemhas been provenforperformance andflexibility in total ammonia andnitrogen control in numerous petroleumapplications.


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Innovative DesignOur experience in clarification is unequalled, startingwith the development of the scraper clarifier over 90years ago. But we did not stop there. With a continuingemphasis on innovative designs, we developed theTow-Bro suction clarifier header more than 70 yearsago it continues to be the choice for dozens of

petroleum facilities.

The Tow-Bro clarifier sludge removal header, whencombined with the peripheral feed Rim-Flo clarifierdesign, meets the toughest environmentalrequirements and offers unequalled process flexibility.

The Rim-Flo clarifier design is a hydraulically efficientclarification process that allows smaller, more

economical units to be installed. Side-by-side studieshave shown the peripheral feed-peripheral effluentRim-Flo design to be 50 to 89 percent more efficientthan conventional center feed designs. Since all pipingis above grade for visual leak detection, the Rim-Floclarifier eliminates costly below grade trenching anddouble containment of piping.

The Tow-Bro clarifier header uses gentle suctionaction to achieve the highest sludge withdrawalconcentration of any biological clarifier sludge device,greatly reducing sludge pumping costs. Its hydraulicdesign permits rapid and uniform sludge withdrawalthroughout the entire area of the clarifier over a 6 to 1flow range, and it has flat clarifier floors, whichreduces excavation costs.

Biological Clarification

Siemens Water Technologies clarifiers are available in a number of highly efficientand low cost designs, including conventional scraper clarifiers, Tow-Bro suctionclarifiers and Rim-Flo peripheral feed clarifiers.

The unitube Tow-Bro clarifier header, installedat dozens of petroleum refineries andpetrochemical plants, ensure uniform and rapid

removal of biological solids.


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Meeting Strict EffluentRequirementsIn todays regulatory environment,tertiary treatment may be required tomeet strict effluent limits or to allowfor recycle and reuse of the treatedeffluent for cooling tower make-up,boiler feed water, or other processes.For removal of suspended solids, oiland grease, or COD to extremely low

concentrations, we offer a number oftreatment processes for in-plant,source stream recycle, effluentrecycle, and water reclamation forzero liquid discharge.

The Hydro-Clear shallow bed sandfiltereasily handles thesolidsand oilswhich can be foundin effluents. Inoperation, the filter periodically pulsesthebed, clearing it of entrainedoil andsolids particles, and prolonging filterrunsbefore backwash is required. The

pulsing feature allows the filter to

producea consistent effluent despitesignificant fluctuations in influentsolids concentration, making it wellsuited for usein systems which reusetreated wastewater forcooling towermake-up.

Siemens Water Technologies offers anumber of different activated carbontreatment systems for the treatment

of difficult to degrade organiccompounds which may be negativelyaffecting effluent toxicity or CODvalues. The PACT system, forexample, combines biologicaltreatment and carbon adsorption intoa single step. We can also supplygranular carbon adsorption systemsand services and have comprehensivelaboratory services includingcomputer modeling; treatabilitystudies and technical support;licensed hazardous waste

transportation and field services; and

a fully licensed and permitted carbonreactivation facility.

For those facilities that have verystrict discharge requirements, or wishto reduce water costs through recycleand reuse of wastewater, our PetroMembrane Bioreactor (MBR) can bean excellent choice. Our MBRsystems can provide effluent TSS and

BOD5 concentrations less than 1 ppmand 5 ppm respectively, making thewastewater suitable for many reuseapplications in petroleum facilities.

We provide tubular micro- and ultra-filtration systems for removal ofvirtually all suspended solids andresidual oil and grease. These systemscan also be used as pretreatment toreverse osmosis (RO) systems whentreated wastewater or high turbiditysurface water is used for boiler feed.

Petro MBR systems eliminate the need for, and spacerequirements associated with, conventional biologicalclarifiers.

Tertiary Treatment Effluent

Polishing/Recycle-Reuse

The Gravisand

traveling bridgefilter is suited forsuspended solids

removal and/orturbidity reductionin process water

and wastewater.

Hydro-Clear sandfilters have proveneffective in meeting

the stringentdischargerequirements of the

petroleum industry.


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Our sludge dewatering equipment isbuilt to provide operating andprocess flexibility. Each design hasnumerous custom features to ensureoptimum dewatering performance,even in the toughest applications.Our experience ranges fromdewatering oily API separatorbottoms and DAF/DGF separator floatto dewatering biological solids, all inpetroleum industry applications.

Belt filter presses include a speciallydesigned low-pressure steam header,which periodically cleansaccumulated oils from the filter beltswhen dewatering API separatorbottoms and/or DAF/DGF float. Thisdesign reduces the need to manuallyclean the belts and extends operatingcycles, contributing to economicaldewatering.

Plate and frame and diaphragm filterpresses are suited for higher volumeoperations where cake dryness isimportant. Special designs, withfeatures such as integral roll bars andsluice pan; and manual hydraulicback-up closing systems, are usedspecifically on offshore drillingplatforms for filtering completionfluids, drilling muds and fuel oils.

Solid bowl decanter centrifuges areoffered in conventional two-phasedesigns and also three-phasedesigns, which separate solids, waterand oil. This allows valuable oil to berecovered and recycled in oily sludgedewatering applications. Ourenclosed centrifuge design alsominimizes odor and VOC emissionswhile dampening noise levels. Theextremely small footprint and

minimal exposure to moving partsalso makes this type of dewateringvery attractive in many applications.

Wet air regeneration systems, whenused in conjunction with PACTsystems, will destroy sludge andregenerate spent carbon for useagain.

Siemens Water Technologies alsooperates fully permitted RCRA Part Bfacilities for advanced processing anddisposal of inorganic and traceorganic wastes and wastewaters, andrecovery of usable resources. We alsomanage and recycle oil-watermixtures, fuel-water mixtures andother materials. These services, insome instances, allow producers orusers to minimize their liability.

Residual Solids/SludgeHandling/Dewatering

Our trailer mounted filter presses are used in a variety of petroleum dewatering applications,including API separator sludges, cooling tower sludges, retention ponds and pits for reclamation,

slop oils and production tank bottoms.


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You Have Questions, We HaveAnswersTreatment of hydrocarbon-contaminated groundwater can be achallenge. Whats the best way tohandle very dilute free oil? How areMTBE and other organic compoundsbest removed? How can the highvolumes and low organicconcentrations in groundwater

encountered at remediation sites beeconomically handled? How can thisgroundwater be economically reusedin refinery operations? We have thespecialized solutions the petroleumindustry needs for remediation issues.

Where significant complexcontamination exists (greater than200 ppm COD) the PACT systemcleans up groundwater and surfacerunoff waters.

For free oil removal in petroleumcontaminated groundwater, the Auto-Shell deep bed filter has the highestefficiency rate in the industry, with99.23 percent throughput of cleanwater and effluent oil concentrationsin the low parts per million. Hard,black walnut shell media will notstratify in the filter beds, leading tolonger on-line time before

backwashing is necessary. Simpleoperation and low maintenance makethe Auto-Shell filter the choice ofmany petroleum companies.

Siemens Water Technologies offers afamily of activated carbons toremove residual organics fromgroundwater. The carbons areproduced from high quality coals andcoconut shells, and aremanufactured by steam activation of

their carbonized raw materials at

high temperatures in a controlledatmosphere.

Siemens Water Technology canprovide activated carbon systems asequipment only, or can provide fullservice systems where we takecomplete responsibility for not onlysupply of the activated carbonadsorbers, but can provide complete

activated carbon services which caninclude monitoring the performanceof the activated carbon systems,replacement of exhausted adsorbersand regeneration of the spentactivated carbon at our licensedregeneration facilities.

Activated carbon services can beprovided at almost any type of facilityfrom oil production operations topetroleum refineries to tank farms

and filling stations.

Our liquid and vapor phase activated carbonabsorbers remove organic contaminants fromgroundwater, wastewater and air streams.

Siemens Water Technologies provides a large variety of filtration systemsfor the treatment of groundwater including media filters, walnut shellfilters and activated carbon filters.

Groundwater Remediation


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Treatment at the SourceSiemensWater Technologies solutionsarent limitedto end-of-pipe treatment.Often, its moreeconomicalto isolateawaste stream and treatit before itreaches the centralizedwaste treatmentfacility. And often, these treatment-at-the-source solutions have a majorimpact on the overall efficiency,

treatment costs and regulatorycompliance of a treatment facility.

A major source of oil and solids toacombined sewer system is the crudeunit desalter water. As more petroleumrefineries process a greater variety ofcrude oils, these same refineries areencountering significant emulsions andlarge excursions of oil and suspendedsolids in the desalter brine water. OurDGF separators combine both chemical

treatment, to break oil emulsions and

flocculate fine oil and solids particles,with flotation separation to removethese oil and solids particles. Thiseliminates potential problems with oilemulsions entering and overloadingcentral wastewater treatment plants,allowing existing treatment equipmentto operate with greater effectiveness.

Another important impact on awastewater plant is high strength, highCOD wastewaters such as spent caustic.Our Zimpro wet air oxidation system isused for pretreatment of these highstrength waste streams in thepetrochemical and refining industries. Itis the leading technology for ethylenespent caustic streams and is findingincreasing application on refinery spentcaustic. Our installation list, experienceand pilot testing facilities for wet air

oxidation are unmatched.

Stripped sour water represents anotherin-process stream that contributes tothe costs of operating the end-of-pipebiological plant. The use of site-specificpackaged RBC units to treat thephenolic compounds and ammonia is aprudent investment. By doing so, theloadings to the end-of-pipe treatmentplant would be reduced significantly;

also, the RBC units have extremely lowoperating and maintenance costscompared to other technologies.

Tank farm water draws often requirecomplex treatment to ensureregulatory compliance. One solutionis our Petro MBR system, which canproduce an effluent suitable for reusewithin the facility.

The Zimpro wet oxidation system is commonly used fortreatment of high strength spent caustic generated inpetroleum refineries and ethylene plants.

The DGF separator process combines chemical pretreatment andflotation to effectively treat and remove free and emulsified oil fromdesalter brine water.

In-Process Treatment


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Expert Services

As the global leader in providingwastewater treatment solutions tothe petroleum industry, SiemensWater Technologies offers our clientsunequaled experience in costeffective wastewater management.

Partnering with us to evaluate andaddress wastewater treatment issuescan result in significant operationaland capital cost savings, significantimprovements in operations and

regulatory compliance. This is whatwe are best at doing, leaving you freeto focus your capital and personnelon raising the profitability of yourcore business.

The significant installation base wehave in the petroleum industry hasallowed us to accumulate a vastamount of operational experience inwastewater treatment operations, inhow refining and petrochemicaloperations affect wastewater

treatment, from all over the world.

From this database we can provide

analysis of your wastewatertreatment operations and makesuggestions on improvements thatcan reduce operating costs andimprove performance.

An effective, accountablewastewater managementplancustomizedto your facilities. Aspart of our core business, we offer afull range of engineering studies andservices for the petroleum and

petrochemical industry using adevoted team of industry experts. Thisteam of experts is focused on, and hasextensive multi-national experiencein, dealing with water and wastewatertreatment issues. They haveperformed studies in petroleumfacilities all over the world includingEurope, Middle East, Asia, Australia,Latin America and North America.

Expertengineering services. Ourengineering studies and services

group uses our wealth of application

and operational knowledge to offer

cost effective water and wastewatersolutions to the petroleum industry.The consulting and engineeringservices we provide include fieldinvestigations, wastewatercharacterization, feasibility andtreatability studies, source controland segregation, wasteminimization, solid waste treatment,operator training, process and plantdesign and many other value addedservices.

Waste Minimization EngineeringStudies. Our intimate knowledge of,and in-depth experience in, thepetroleum and petrochemicalindustries, has allowed us to achievegreat success in waste reductions,recycle/reuse and source control ofvaluable hydrocarbons and otherproducts. We've worked withrefineries, distribution sites,petrochemical plants and oil/gasproduction sites worldwide.

Our service engineers are highly skilled to analyze and evaluate anywastewater treatment issue in the petroleum industry, and makeappropriate recommendations for corrective action.

More than 2,500 wastewater treatment installationsacross the petroleum and petrochemical industryworldwide.

Wastewater Treatment Services


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Specialized Services for the

Petroleum IndustrySiemens Water Technologieslaboratories are RCRA certified toperform bench scale treatabilitystudies on almost any waste. Our fieldpilot units range from multiple typesof oil/water separators to biologicaltreatment systems to sludgedewatering to tertiary treatmentsystems, designed to meet strictdischarge requirements, or to recycleand reuse treated effluent within the

facility. Multiple pilot units can becombined to simulate entiretreatment systems.

Mobile waterservices. We also offera wide variety of temporarywastewater treatment systems thatcan be used during maintenance onexisting equipment or underconditions when existing operationsdo not have enough capacity. Thistemporary equipment includesdissolved air flotation separators,clarifiers, wastewater filtration

equipment, activated carbon

adsorbers, and even microfiltrationand reverse osmosis systems forwastewater reuse/recycle. Thesemobile treatment units come withexperienced service technicians thatcan either train your personnel tooperate the equipment or that canoperate the equipment for you.

Totalhazardous wastemanagement. Siemens WaterTechnologies also specializes in both

on-site and off-site management ofhazardous and nonhazardous wastes including emergency spill responseand oily wastewater treatment. Wetake care of a variety of liquids andmaterials, including used oil, oil-watermixtures and emulsions, fuel-watermixtures, ethylene glycol and used oilfilters and absorbents.

Guaranteedregulatory compliance,withinthedesignparameters ofyouroperation.Our customersinclude some of the worlds largest

companies many operating under

the most stringent regulatoryconditions who rely on ourprocesses, equipment and knowledgeto assure compliance.

In addition, we can provide thepetroleum industry with turnkeyservices in the application ofactivated carbons for specific needs.Our services include pretreatment forthe production of high-purity water,wastewater treatment, VOC emission

control, purifying/decolorizing off-spec products, and benzene NESHAPcarbon canister monitoring inrefineries.

Our comprehensive services arebacked by an extensive spare partsinventory that covers every one ofour products. Our field techniciansacross the nation are fully trained tomeet every operating, safety andenvironmental requirement withinthe petroleum and petrochemicalindustries.

We offer carbon adsorber systems thatcan be mobilized quickly.

Services to Support Your Needs

We supply a wide range of high quality liquid and vapor phase carbons.


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1909 Rex traveling water screen developed1928 Tow-Bro hydraulic sludge removal arm invented1929 Envirex chain and scraper sludge collector

developed1931 Rex bar screen developed1937 Envirex API oil/water separator invented1953 Envirex dissolved air flotation separator

invented1954 F.J. Zimmermann obtains patent for waste

treatment using wet oxidation

1957 Rim-Flo clarifier invented1964 Envirex solids contact clarifier developed1965 Hydro-Clear filter introduced1968 Orbal aeration system introduced in the U.S.1969 Envirex rotating biological contactor system

invented1972 PACT system invented1975 First Zimpro wet oxidation system installed for

treatment of ethylene spent caustic starts up inJapan

1976 Envirex non-metallic molded chain andfiberglass flights for API collectors invented

1980 VARI-CANT jet aeration system

1981 Jet aeration invented

1982 First U.S. installation of Zimpro wet oxidationsystem for ethylene spent caustic treatmentstarts up

1984 SBC system invented by Envirex1984 Introduction of OMNIFLO SBR1985 Traveling bridge filter invented1986 Envirex loop chain for API collectors invented1986 VLR system invented by Envirex1986 Rex-Flex aeration system developed1987 Fluidized bed process invented

1990 Envirex dissolved gas flotation separatordeveloped1990 Envirex fiberglass VOC containment covers

invented1992 Westates activated carbon reactivation facility

opens1995 Gravisand filtration system invented1996 Folded Flow DAF invented1999 Envirex/ Envirogen MTBETreatment Partnership2003 CannibalSolidsReductionsystem2003 USFilter and Paques bv of the

Netherlands signlicense agreement2006 Petro Membrane Bioreactor system introduced

Backed by over 70 years of continuous experience in offering new, innovative and cost effective wastewater treatmentsolutions to the petroleum industry, Siemens Water Technologies can provide everything from individual product

designs to complete wastewater and groundwater treatment facilities.

SiemensWater TechnologiesMilestones


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Auto-Shell,Bionutre,Cannibal,DualAir,Envirex, Folded Flow,Gravisand, Hydro-Clear,Hydrocell, OMNIFLO,Orbal, PACT,Petro, Quadricell,Rim-Flo, SBC,Sim-Pre,Surfact, Tow-Bro,VARI-CANT,VertiCel,VLR, Westatesand Zimpro aretrademarks of Siemens, its subsidiariesor affiliates.

Rexand Rex-Flexare trademarks of RexnordIndustriesLLC.

The informationprovided in thisbrochurecontainsmerelygeneral descriptions or characteristics ofperformance whichin actualcase of usedo not alwaysapply as describedor whichmay changeas a resultoffurtherdevelopment of the products.An obligationtoprovide the respectivecharacteristicsshall only existifexpresslyagreed in theterms ofcontract.

phone: [email protected]

HP-WWCB-BR-0210

Subject to change without priornotice.

2010SiemensWater TechnologiesCorp.

www.siemens.com/petroleum

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