Total Wastewater Management for the Petroleum Refining and Petrochemical Industries

Water Technologies Petroleum Refining/Petrochemical Wastewater Treatment

Process Unit

L In-Process

Treatment

Wastewater L

Raw Primary Secondary Treated L L L L L L Biological Biological Tertiary Oil/Water Oil/Water Treatment Clarification Treatment

Influent Separation Separation L Effluent

L L In 1937, we supplied the first API Solids L To oil/water separator at a petroleum

L To Disposal/ Handling Disposal

Solids Handling Oil Recovery refinery on the U.S. east coast. L L Oil L To Disposal/ Recovery Oil Recovery

Contaminated

L Groundwater L Remediation Treated Effluent Groundwater

Our Solutions are Proven

A partnership with Siemens Water I We can help you monetize your Technologies gains a host of water-related assets – directly benefits for you: reducing operating costs and I We provide more than 100 raising your profit margins. different products and processes I We guarantee performance and for dealing with wastewater – costs, as well as regulatory and will customize a solution compliance, within the design specifically for your facilities. parameters of your operation. I We deliver the full spectrum of services – from initial design, Whether it’s oil/water separation, engineering and pilot/laboratory biological treatment, recycle/reuse, studies for water, wastewater solids handling, VOC emissions and recycling/reuse issues. control, groundwater remediation, I We assume the risks and or in-process treatment, Siemens responsibility for the complete Water Technologies delivers design of your wastewater complete and economical solutions system – freeing you to for the petroleum industry. Siemens Water Technologies is concentrate on enhancing the uniquely equipped to handle all of profitability of your core These solutions are backed by the the requirements that petroleum business. wastewater treatment industry’s refining and petrochemical companies insist on from a I We are experts at process most comprehensive range of optimization of downstream services, including laboratory and wastewater treatment partner. We facilities – resulting in pilot studies; wastewater provide total responsiveness to operational improvements and equipment design and supply, concerns of safety, toxicity and significant cost savings – now mobile/temporary wastewater hazardous materials control and and in the future. treatment services and wastewater VOC containment, and we offer treatment process evaluations. prompt, expert, worldwide service.

2 Siemens Water Technologies has provided hundreds of API oil/water Oil roll skimmers recover up to 99 percent pure oil from separators to petroleum facilities around the world for over 70 years. API and CPI separators.

Oil/Water Separation Equipment

Primary Oil/Water Separation Sludge collection hoppers, screw conveyors, flushing For more than 70 years, Siemens Water Technologies has connections, clean-outs, sludge withdrawal piping, and been providing cost-effective screening and primary sludge pumps are designed to remove and transfer API oil/water separation equipment to the petroleum separator bottoms with a minimum of maintenance and refining industry, while continuing to improve and operator attention. This is important because the upgrade designs to provide high levels of performance inability to remove thick, sticky sludges is the main and meet all current regulations. Our technologies reason collector components fail in petroleum include the API oil water separator, corrugated plate applications. interceptors, hydrocyclones, the oil roll skimmer, and other types of skimming equipment. Our corrugated plate interceptor separator is a cost effective alternative to the API separator design for Our API separator design has been risk-assessed, applications with low influent solids concentrations. assuring safe operation. Above ground, steel tankage provides double-containment and visual leak detection Our oil skimming equipment ensures efficient and safe for hazardous sludges and wastewater. VOCs are removal of collected oils, even when visual observation contained through the use of vapor-tight fiberglass is not possible. The operation is continuous, is covers. Additional safety features include non-metallic independent of oil depth in the API separator, and collector components and covers, stainless steel on all requires no operator attention or adjustment. wearing metallic components, deflagration vents, flame arrestors, and more.

3 DGF separators can be completely shop fabricated with VOC Specially designed, high-strength, light-weight, non-metallic collector containment covers. Ancillary sludge handling, activated components are designed to work in the high temperature and carbon and recirculation equipment can also be provided. corrosive environments of the petroleum industry.

Secondary Oil/Water Separation This concentrated float can eliminate the need for Since the 1950s, our flotation separation equipment additional thickening equipment normally associated has been noted for superior removal of free and with other types of flotation technology. Efficient emulsified oils and suspended solids. Today, our design allows both flash mixing and flocculation to be dissolved air flotation (DAF) and dissolved gas integrated into the unit without the addition of flotation (DGF) oil/water separators are a complete separate tankage. Steel tank, shop fabricated units solution to the complex environmental equipment are available in capacities of up to 4,000 gallons per issues facing the petroleum industry. minute (908.5 cubic meters per hour), significantly reducing installation and construction time and costs. DAF/DGF separators may be designed either as rectangular or circular units, incorporating steel or DGF separators can be provided with air-tight concrete tankage. The steel tank designs allow all fiberglass covers for VOC containment. In these piping and tankage to be located above grade for applications, state-of-the-art non-metallic and double containment of hazardous wastewaters and stainless steel collector components are designed to sludges, in addition to providing visual leak detection operate for years in the corrosive environment of for all separator components, including tankage. enclosed DGF separators. Nitrogen is normally used Options include rapid mix and flocculation zones, as the flotation gas for safety when covers are chemical pretreatment, float holding tank and steel required for VOC control. bottom elevated units.

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

4 The Auto-Shell™ filter is well suited for those applications Siemens Water Technologies offers induced air flotation (IAF) where biological wastewater treatment is not available and and induced gas flotation (IGF) separators suited for those effluent free oil concentrations of 5 mg/l or less are required. applications with limited space for equipment.

The innovative Folded Flow® DGF separator incorporates feature a gas-tight design for VOC and/or odor control. patented hydraulic designs in the flotation tank that allow The Auto-Shell™ deep bed, walnut shell media filter is for hydraulic loading rates up to 10 gallons per minute per suited for those applications when nearly all free oil must square foot (24.4 meters per hour), and higher. This is be removed from a waste stream. The system offers compared to conventional units which operate at loading longer on-line time before oil breakthrough, and has zero rates of 3 gallons per minute per square foot (7.3 meters upstream flow interruption, preventing feed pump dead per hour) or less. This unique Folded Flow® separator heading. design results in significant cost and space savings compared to conventional DAF/DGF separator designs, while still offering superior oil and suspended solids separation.

Safety is always the most important consideration in the DAF/DGF separator designs. When potentially explosive vapors accumulate under a VOC containment cover, the recirculation/pressurization system can use inert gases such as nitrogen instead of air to reduce explosion risks.

Hydrocell® and Quadricell® induced air flotation (IAF) and induced gas flotation (IGF) separators are well-suited for the stable, large volume waste streams generated by oil field and oil platform applications. These separators have few Cost effective circular DAF/DGF units are available in moving parts and comparatively small footprint units numerous standard and custom configurations.

5 Combined biological processes: AGAR® IFAS suspended growth systems Surfact™ systems Rotating biological contactors (RBC) solids contact systems Trickling filter solids contact systems PACT® powdered activated carbon systems

Fixed film biological processes: AGAR® suspended growth systems Trickling filters Rotating biological contactors RBC systems

Suspended growth biological processes: Mechanical aeration Petro™ membrane bioreactor (MBR) systems Coarse bubble aeration The modular design of the RBC system allows units Our package plants for biological DualAir® and Rex-Flex® fine and tankage to be completely shop fabricated. treatment can economically handle bubble aeration systems clarification, aeration and digestion in a single modular unit. Bionutre™ nutrient removal systems VARI-CANT ® jet aeration systems OMNIFLO® sequencing batch reactors Orbal® aeration systems Biological Treatment Sim-Pre® aeration systems VLR® vertical loop reactor systems VertiCel® systems The Right Process Jet aeration offers high oxygen There is a “right” biological treatment transfer efficiencies and excellent Anaerobic Treatment process for your application, and mixing characteristics in all types of Paques anaerobic treatment Siemens Water Technologies offers it. wastewaters. The strong mixing systems We have more biological treatment action of the VARI-CANT ® jet aeration processes than anyone in the system is independent of airflow business; consequently, our process rates, consequently, oxygen transfer engineers have the knowledge it rates can be easily matched to varying takes to select the best biological process conditions. treatment system for your application. The rotating biological contactor (RBC) is a major refinement of We evaluate each application for VOC conventional trickling filter fixed film stripping potential, ease of covering technology. Where shock loads of for VOC containment, ability to nitrify organic compounds or toxics have and possibly denitrify, flexibility to been found to have serious negative treat shock loads of organic impact on activated sludge systems, compounds, area requirements, the RBC® process has been found to capital costs, operating costs, be much more resilient and in most discharge requirements, and more. cases shows no impact from the shock loads in side-by-side pilot studies.

6 PACT® systems are particularly well suited for those downstream Our Orbal ® aeration system has been proven for petroleum applications where low effluent COD levels are required or performance and flexibility in total ammonia and wastewater reuse is desired. nitrogen control in numerous petroleum applications.

PACT ® systems help refineries meet bioassay achieved at a lower power cost than conventional requirements. To treat complex wastewaters, operation for nitrification only. groundwater and contaminated runoff in one step, the system adds powdered activated carbon to an The VLR® system is a modification of the Orbal system aerobic or anaerobic biological process. The carbon design, allowing this technology to be used at then buffers the biological system against toxic locations with limited room for wastewater treatment organics in the wastewater. When coupled with our equipment, or with those biological treatment Zimpro® wet air regeneration system, sludge is systems which may need to be covered for VOC eliminated and the carbon is regenerated for reuse. containment.

The Orbal® aeration system, using completely mixed Our OMNIFLO® sequencing batch reactor (SBR), is a reactors in series, provides economy, flexibility and fill-and-draw, non-steady state activated sludge reliable treatment performance, while minimizing process, in which one or more reactor basins are filled total cost by employing multi-wall construction. The with wastewater during a discrete time period, and use of three channels, operating in series, allows then operated in a batch treatment mode. The SBR dissolved oxygen levels to be varied from channel to accomplishes equalization, aeration and clarification channel. This arrangement ensures nitrification of in a timed sequence, in a single reactor basin. The nearly all ammonia in the wastewater. Also, by OMNIFLO system can handle influent flows ranging recirculating effluent from the third channel to the from zero to four times design, and a wide range of first, and running the first channel at a zero dissolved organic loads and industrial pollutants. oxygen condition, total nitrogen removal can be

7 Siemens Water Technologies clarifiers are available in a number of highly efficient The unitube Tow-Bro® clarifier header, installed and low cost designs, including conventional scraper clarifiers, Tow-Bro® suction at dozens of petroleum refineries and clarifiers and Rim-Flo® peripheral feed clarifiers. petrochemical plants, ensure uniform and rapid removal of biological solids.

Biological Clarification

Innovative Design economical units to be installed. Side-by-side studies Our experience in clarification is unequalled, starting have shown the peripheral feed-peripheral effluent with the development of the scraper clarifier over 90 Rim-Flo® design to be 50 to 89 percent more efficient years ago. But we did not stop there. With a continuing than conventional center feed designs. Since all piping emphasis on innovative designs, we developed the is above grade for visual leak detection, the Rim-Flo Tow-Bro® suction clarifier header more than 70 years clarifier eliminates costly below grade trenching and ago – it continues to be the choice for dozens of double containment of piping. petroleum facilities. The Tow-Bro® clarifier header uses gentle suction The Tow-Bro® clarifier sludge removal header, when action to achieve the highest sludge withdrawal combined with the peripheral feed Rim-Flo® clarifier concentration of any biological clarifier sludge device, design, meets the toughest environmental greatly reducing sludge pumping costs. Its hydraulic requirements and offers unequalled process flexibility. design permits rapid and uniform sludge withdrawal throughout the entire area of the clarifier over a 6 to 1 The Rim-Flo® clarifier design is a hydraulically efficient flow range, and it has flat clarifier floors, which clarification process that allows smaller, more reduces excavation costs.

8 The Gravisand® traveling bridge filter is suited for suspended solids removal and/or turbidity reduction in process water and wastewater.

Hydro-Clear® sand filters have proven effective in meeting the stringent discharge requirements of the petroleum industry.

Petro™ MBR systems eliminate the need for, and space requirements associated with, conventional biological clarifiers. Tertiary Treatment Effluent Polishing/Recycle-Reuse

Meeting Strict Effluent produce a consistent effluent despite a fully licensed and permitted carbon Requirements significant fluctuations in influent reactivation facility. In today’s regulatory environment, solids concentration, making it well tertiary treatment may be required to suited for use in systems which reuse For those facilities that have very meet strict effluent limits or to allow treated wastewater for cooling tower strict discharge requirements, or wish for recycle and reuse of the treated make-up. to reduce water costs through recycle effluent for cooling tower make-up, and reuse of wastewater, our Petro™ boiler feed water, or other processes. Siemens Water Technologies offers a Membrane Bioreactor (MBR) can be For removal of suspended solids, oil number of different activated carbon an excellent choice. Our MBR and grease, or COD to extremely low treatment systems for the treatment systems can provide effluent TSS and concentrations, we offer a number of of difficult to degrade organic BOD 5 concentrations less than 1 ppm treatment processes for in-plant, compounds which may be negatively and 5 ppm respectively, making the source stream recycle, effluent affecting effluent toxicity or COD wastewater suitable for many reuse recycle, and water reclamation for values. The PACT® system, for applications in petroleum facilities. zero liquid discharge. example, combines biological treatment and carbon adsorption into We provide tubular micro- and ultra- The Hydro-Clear® shallow bed sand a single step. We can also supply filtration systems for removal of filter easily handles the solids and oils granular carbon adsorption systems virtually all suspended solids and which can be found in effluents. In and services and have comprehensive residual oil and grease. These systems operation, the filter periodically pulses laboratory services including can also be used as pretreatment to the bed, clearing it of entrained oil and computer modeling; treatability reverse osmosis (RO) systems when solids particles, and prolonging filter studies and technical support; treated wastewater or high turbidity runs before backwash is required. The licensed hazardous waste surface water is used for boiler feed. pulsing feature allows the filter to transportation and field services; and

9 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.

Residual Solids/Sludge Handling/Dewatering

Our sludge dewatering equipment is Plate and frame and diaphragm filter minimal exposure to moving parts built to provide operating and presses are suited for higher volume also makes this type of dewatering process flexibility. Each design has operations where cake dryness is very attractive in many applications. numerous custom features to ensure important. Special designs, with optimum dewatering performance, features such as integral roll bars and Wet air regeneration systems, when even in the toughest applications. sluice pan; and manual hydraulic used in conjunction with PACT® Our experience ranges from back-up closing systems, are used systems, will destroy sludge and dewatering oily API separator specifically on offshore drilling regenerate spent carbon for use bottoms and DAF/DGF separator float platforms for filtering completion again. to dewatering biological solids, all in fluids, drilling muds and fuel oils. petroleum industry applications. Siemens Water Technologies also Solid bowl decanter centrifuges are operates fully permitted RCRA Part B Belt filter presses include a specially offered in conventional two-phase facilities for advanced processing and designed low-pressure steam header, designs and also three-phase disposal of inorganic and trace which periodically cleans designs, which separate solids, water organic wastes and wastewaters, and accumulated oils from the filter belts and oil. This allows valuable oil to be recovery of usable resources. We also when dewatering API separator recovered and recycled in oily sludge manage and recycle oil-water bottoms and/or DAF/DGF float. This dewatering applications. Our mixtures, fuel-water mixtures and design reduces the need to manually enclosed centrifuge design also other materials. These services, in clean the belts and extends operating minimizes odor and VOC emissions some instances, allow producers or cycles, contributing to economical while dampening noise levels. The users to minimize their liability. dewatering. extremely small footprint and

10 Siemens Water Technologies provides a large variety of filtration systems Our liquid and vapor phase activated carbon for the treatment of groundwater including media filters, walnut shell absorbers remove organic contaminants from filters and activated carbon filters. groundwater, wastewater and air streams.

Groundwater Remediation

You Have Questions, We Have For free oil removal in petroleum high temperatures in a controlled Answers contaminated groundwater, the Auto- atmosphere. Treatment of hydrocarbon- Shell™ deep bed filter has the highest contaminated groundwater can be a efficiency rate in the industry, with Siemens Water Technology can challenge. What’s the best way to 99.23 percent throughput of clean provide activated carbon systems as handle very dilute free oil? How are water and effluent oil concentrations equipment only, or can provide full MTBE and other organic compounds in the low parts per million. Hard, service systems where we take best removed? How can the high black walnut shell media will not complete responsibility for not only volumes and low organic stratify in the filter beds, leading to supply of the activated carbon concentrations in groundwater longer on-line time before adsorbers, but can provide complete encountered at remediation sites be backwashing is necessary. Simple activated carbon services which can economically handled? How can this operation and low maintenance make include monitoring the performance groundwater be economically reused the Auto-Shell™ filter the choice of of the activated carbon systems, in refinery operations? We have the many petroleum companies. replacement of exhausted adsorbers specialized solutions the petroleum and regeneration of the spent industry needs for remediation issues. Siemens Water Technologies offers a activated carbon at our licensed family of activated carbons to regeneration facilities. Where significant complex remove residual organics from contamination exists (greater than groundwater. The carbons are Activated carbon services can be 200 ppm COD) the PACT® system produced from high quality coals and provided at almost any type of facility cleans up groundwater and surface coconut shells, and are from oil production operations to runoff waters. manufactured by steam activation of petroleum refineries to tank farms their carbonized raw materials at and filling stations.

11 The Zimpro® wet oxidation system is commonly used for The DGF separator process combines chemical pretreatment and treatment of high strength spent caustic generated in flotation to effectively treat and remove free and emulsified oil from petroleum refineries and ethylene plants. desalter brine water.

In-Process Treatment

Treatment at the Source flocculate fine oil and solids particles, Stripped sour water represents another Siemens Water Technologies solutions with flotation separation to remove in-process stream that contributes to aren’t limited to “end-of-pipe” treatment. these oil and solids particles. This the costs of operating the “end-of-pipe” Often, it’s more economical to isolate a eliminates potential problems with oil biological plant. The use of site-specific waste stream and treat it before it emulsions entering and overloading packaged RBC units to treat the reaches the centralized waste treatment central wastewater treatment plants, phenolic compounds and ammonia is a facility. And often, these “treatment-at- allowing existing treatment equipment prudent investment. By doing so, the the-source” solutions have a major to operate with greater effectiveness. loadings to the “end-of-pipe” treatment impact on the overall efficiency, plant would be reduced significantly; treatment costs and regulatory Another important impact on a also, the RBC units have extremely low compliance of a treatment facility. wastewater plant is high strength, high operating and maintenance costs COD wastewaters such as spent caustic. compared to other technologies. A major source of oil and solids to a Our Zimpro® wet air oxidation system is combined sewer system is the crude used for pretreatment of these high Tank farm water draws often require unit desalter water. As more petroleum strength waste streams in the complex treatment to ensure refineries process a greater variety of petrochemical and refining industries. It regulatory compliance. One solution crude oils, these same refineries are is the leading technology for ethylene is our Petro™ MBR system, which can encountering significant emulsions and spent caustic streams and is finding produce an effluent suitable for reuse large excursions of oil and suspended increasing application on refinery spent within the facility. solids in the desalter brine water. Our caustic. Our installation list, experience DGF separators combine both chemical and pilot testing facilities for wet air treatment, to break oil emulsions and oxidation are unmatched.

12 Our service engineers are highly skilled to analyze and evaluate any More than 2,500 wastewater treatment installations wastewater treatment issue in the petroleum industry, and make across the petroleum and petrochemical industry appropriate recommendations for corrective action. worldwide. Wastewater Treatment Services

Expert Services From this database we can provide and operational knowledge to offer As the global leader in providing analysis of your wastewater cost effective water and wastewater wastewater treatment solutions to treatment operations and make solutions to the petroleum industry. the petroleum industry, Siemens suggestions on improvements that The consulting and engineering Water Technologies offers our clients can reduce operating costs and services we provide include field unequaled experience in cost improve performance. investigations, wastewater effective wastewater management. characterization, feasibility and An effective, accountable treatability studies, source control Partnering with us to evaluate and wastewater management plan and segregation, waste address wastewater treatment issues customized to your facilities. As minimization, solid waste treatment, can result in significant operational part of our core business, we offer a operator training, process and plant and capital cost savings, significant full range of engineering studies and design and many other value added improvements in operations and services for the petroleum and services. regulatory compliance. This is what petrochemical industry using a we are best at doing, leaving you free devoted team of industry experts. This Waste Minimization Engineering to focus your capital and personnel team of experts is focused on, and has Studies. Our intimate knowledge of, on raising the profitability of your extensive multi-national experience and in-depth experience in, the core business. in, dealing with water and wastewater petroleum and petrochemical treatment issues. They have industries, has allowed us to achieve The significant installation base we performed studies in petroleum great success in waste reductions, have in the petroleum industry has facilities all over the world including recycle/reuse and source control of allowed us to accumulate a vast Europe, Middle East, Asia, Australia, valuable hydrocarbons and other amount of operational experience in Latin America and North America. products. We've worked with wastewater treatment operations, in refineries, distribution sites, how refining and petrochemical Expert engineering services. Our petrochemical plants and oil/gas operations affect wastewater engineering studies and services production sites worldwide. treatment, from all over the world. group uses our wealth of application

13 We supply a wide range of high quality liquid and vapor phase carbons. We offer carbon adsorber systems that can be mobilized quickly.

Services to Support Your Needs

Specialized Services for the equipment, activated carbon companies – many operating under Petroleum Industry adsorbers, and even microfiltration the most stringent regulatory Siemens Water Technologies and reverse osmosis systems for conditions – who rely on our laboratories are RCRA certified to wastewater reuse/recycle. These processes, equipment and knowledge perform bench scale treatability mobile treatment units come with to assure compliance. studies on almost any waste. Our field experienced service technicians that pilot units range from multiple types can either train your personnel to In addition, we can provide the of oil/water separators to biological operate the equipment or that can petroleum industry with turnkey treatment systems to sludge operate the equipment for you. services in the application of dewatering to tertiary treatment activated carbons for specific needs. systems, designed to meet strict Total hazardous waste Our services include pretreatment for discharge requirements, or to recycle management. Siemens Water the production of high-purity water, and reuse treated effluent within the Technologies also specializes in both wastewater treatment, VOC emission facility. Multiple pilot units can be on-site and off-site management of control, purifying/decolorizing off- combined to simulate entire hazardous and nonhazardous wastes spec products, and benzene NESHAP treatment systems. – including emergency spill response carbon canister monitoring in and oily wastewater treatment. We refineries. Mobile water services. We also offer take care of a variety of liquids and a wide variety of temporary materials, including used oil, oil-water Our comprehensive services are wastewater treatment systems that mixtures and emulsions, fuel-water backed by an extensive spare parts can be used during maintenance on mixtures, ethylene glycol and used oil inventory that covers every one of existing equipment or under filters and absorbents. our products. Our field technicians conditions when existing operations across the nation are fully trained to do not have enough capacity. This Guaranteed regulatory compliance, meet every operating, safety and temporary equipment includes within the design parameters of environmental requirement within dissolved air flotation separators, your operation. Our customers the petroleum and petrochemical clarifiers, wastewater filtration include some of the world’s largest industries.

14 Siemens Water Technologies Milestones Backed by over 70 years of continuous experience in offering new, innovative and cost effective wastewater treatment solutions to the petroleum industry, Siemens Water Technologies can provide everything from individual product designs to complete wastewater and groundwater treatment facilities.

1909 Rex® traveling water screen developed 1982 First U.S. installation of Zimpro® wet oxidation 1928 Tow-Bro® hydraulic sludge removal arm invented system for ethylene spent caustic treatment 1929 Envirex® chain and scraper sludge collector starts up developed 1984 SBC® system invented by Envirex 1931 Rex® bar screen developed 1984 Introduction of OMNIFLO® SBR 1937 Envirex® API oil/water separator invented 1985 Traveling bridge filter invented 1953 Envirex® dissolved air flotation separator 1986 Envirex® loop chain for API collectors invented invented 1986 VLR® system invented by Envirex 1954 F.J. Zimmermann obtains patent for waste 1986 Rex-Flex® aeration system developed treatment using wet oxidation 1987 Fluidized bed process invented 1957 Rim-Flo® clarifier invented 1990 Envirex® dissolved gas flotation separator 1964 Envirex® solids contact clarifier developed developed 1965 Hydro-Clear® filter introduced 1990 Envirex® fiberglass VOC containment covers 1968 Orbal® aeration system introduced in the U.S. invented 1969 Envirex® rotating biological contactor system 1992 Westates® activated carbon reactivation facility invented opens 1972 PACT® system invented 1995 Gravisand® filtration system invented 1975 First Zimpro® wet oxidation system installed for 1996 Folded Flow® DAF invented treatment of ethylene spent caustic starts up in 1999 Envirex / Envirogen MTBE Treatment Partnership Japan 2003 Cannibal® Solids Reduction system 1976 Envirex® non-metallic molded chain and 2003 USFilter and Paques bv of the fiberglass flights for API collectors invented Netherlands sign license agreement 1980 VARI-CANT® jet aeration system 2006 Petro™ Membrane Bioreactor system introduced 1981 Jet aeration invented

15 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, Westates and Zimpro are trademarks of Siemens, its subsidiaries or affiliates. AGAR is a trademark of AqWise - Wise Water Technologies Ltd. Rex and Rex-Flex are trademarks of Rexnord Industries LLC.

The information provided in this brochure contains merely general descriptions or characteristics of performance which in actual case of use do not always apply as described or which may change as a result of further development of the products. An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract. phone: 1.724.772.0044 [email protected]

HP-WWCB-BR-0209 Subject to change without prior notice.