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 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