713.979.9142 About Us Literature Library News Careers Water Treatment Services Products Markets Contaminants Contact Us Fluidized Bed Reactor (FBR) The TechnologyOur expert staff is ready to help with your Fluidized Bed Reactor needsOur ProductApplicationsOur expert staff is ready to help with your Fluidized Bed Reactor needsFluidized Bed Reactor Frequently Asked QuestionsEnvirogen Experience The Technology The Envirogen Fluidized Bed Reactor, or FBR is a proprietary biological active water treatment system used to remove nitrate, selenium, perchlorate, and other difficult contaminants from water. Based on the contaminant to be removed, the fluidized bed bioreactor can be customized with various media, microbes, nutrients, and electron donors. In the FBR process, the objective is to feed and grow a specially selected microbial biomass on the FBR media. The result of the fluidized bed reactor design is that these microbes then consume/degrade the target contaminant/compound. FBR Process: An active water treatment process that utilizes microbes growing on a fluidized media bed to degrade or consume difficult contaminants. Fluidized Bed Bioreactor: Uses microbes, grown on a fluidized media, to transform toxic contaminants. Fluidized Bed Reactor: Is a green solution to contaminated water that uses microbes to degrade and consume harmful contaminants. Fluidized Bed Reactor Design: Involves the critical system sizing and the selection of specialty microbes that can degrade or consume a targeted water contaminant such as nitrate, selenium, or perchlorate. The team at Envirogen has a long history of harnessing the science of microbiology to produce high-performance Fluidized Bed Reactor (FBR) systems engineered to eliminate even the most difficult chemicals, such as selenium, nitrate, perchlorate, BTEX, 1,4 Dioxane, and many other, from aqueous streams, providing high-quality, potentially recyclable water and potable water. In fact, we successfully installed a Fluidized Bed Reactor System to treat perchlorate contaminated wells in Southern California, and obtained regulatory approval to deliver potable water to the local communities. Using non-pathogenic, naturally occurring bacteria, and nutrients to facilitate bacteria growth, the Fluidized Bed Reactor transforms toxic contaminants so they can be safely removed, thus delivering a green solution to address difficult contaminants. US Patents: 6706521, 5750028, 5788842, 7754159, 7611890, 7572626, 8323496, 6830922 Our expert staff is ready to help with your Fluidized Bed Reactor needs Our Product For a broad range of influent flow rates and contaminant concentration levels, our Fluidized Bed Reactor (FBR) system is often the most economical treatment choice. With aerobic, anaerobic and anoxic designs available, systems have been successfully operated at ranges from 5 to 6,000 GPM, yielding high performance paired with low capital and operating costs. FBR DESIGN ADVANTAGES: Small footprint/Efficient – High concentration of biomass, plug-flow characteristics and tall beds minimize bioreactor footprint. High biomass concentration means long Solid Retention Time (SRT) and short Hydraulic Retention Time (HRT) and a high-quality effluent Steady-state performance – FBRs run continuously without backwashing or cleaning operations. Proven design – Envirogen’s Fluidized Bed Reactors have been continually improved and refined based on lessons learned over 30+ years of design and operating experiences. Robust – Does not plug up or channel. Tolerant of high feed Total Suspended Solids (TSS) and metals. Proven robust performance and ability to quickly recover from upsets such as power outages or loss of chemical feeds. Capable of handling both hydraulic and organic shock loads. Flexible – Operates effectively over a wide range of feed flow and qualities. Actual treatment technology (“green”), not just a phase transfer treatment for most contaminants. Cost effective – Envirogen’s Fluidized Bed Reactors are cost effective across a wide range of contaminants treated Applications Whatever the problem – chemicals, aromatics, alcohols, ketones, chlorinated solvents, Polycyclic aromatic hydrocarbons (PAH), 1,4-Dioxane, chromium hydrocarbons, BTEX (Benzene, Toluene, Ethylbenzene and Xylene), selenium, perchlorates or nitrates – the FBR system handles high flows at low cost with typical treatment efficiencies of 99 percent or higher. Additionally, this is one of the most efficient denitrification processes available today. Our FBR denitrification process lowers discharge levels of nitrogen in wastewater to less than 0.1 mg/l NO3-N. This simple end-of-pipe solution can use different carbon sources, does not require backwashing, produces minimal biosolids, and does not have filter upsets due to accumulating nitrogen bubbles. One application where the FBR is well suited is for denitrification of the Flue Gas Desulfurization wastewater produced in coal fired power plants. Specifically, Envirogen’s FBR can be inserted into existing chemical precipitation processes (as depicted in the image below) to reduce the nitrate load on the downstream biological system, thereby improving selenium compliance. Removing nitrate up-front can also reduce the size and cost of downstream biological treatment. Read more about our experience in Power Plants. Our expert staff is ready to help with your Fluidized Bed Reactor needs Fluidized Bed Reactor Frequently Asked Questions Q: How does a fluidized bed reactor work? When used to treat contaminated water, the fluidized bed reactor uses up flowing water to suspend or fluidize the media. This media supports the growth of specially selected microbes that act to degrade or consume toxic contaminants such as selenium, perchlorate, nitrate, 1,4 dioxane, and others. Q: What is a fluidized bed used for? Although commonly used to facilitate chemical reactions, fluidized beds are also used as an active water treatment system to remove recalcitrant contaminants. The Envirogen fluidized bed reactor uses specialty microbes, grown on a fluidized media, to transform toxic contaminants so the effluent can be safely discharged. Q: What is the difference between fixed bed and fluidized bed? In a fixed bed system, the media bed is packed together and not moving. In a fluidized bed, water flows at a set flow rate to cause the media bed to hydraulically rise, where it remains in this fluidized state during treatment. By fluidizing the media, all the media surface area is exposed and available for the task of removing harmful contaminants. Q: What are the advantages and disadvantages of a fluidized bed reactor? Fluidized beds used in water treatment applications tend to have smaller footprint/overall system size then fixed bed counterparts. In addition the system can run continuously without backwashing. If forward feed needs to be stopped, the microbes remain fluidized in the reactor and can be maintained in a “ready state” to initiate treatment once feedwater is restarted. A potential disadvantage of this technology is that additional electrical costs might be incurred to operate the system continuously in a fluidized state. However, this cost is often offset by the numerous advantages previously conveyed. Envirogen Experience 1,4 Dioxane Treated with Envirogen FBR – Press Release GenCorp Aerojet, Sacramento, California Bioreactor System for Landfill Leachate TCE Lab Scale Bioreactor System (Tyndall Air Force Base) Fixed-Film Bioreactor System for a Major Chemical Manufacturer Industrial Facility Groundwater Remediation Program Fluidized Bed Reactor System for Manufactured Gas Plant Groundwater To read a progress report on the first ever use of FBR technology to treat perchlorate in groundwater destined for drinking water supplies, click here. Presented by Shaw Environmental prior to acquisition by Envirogen. Authors are current Envirogen employees Treating The Source Of Perchlorate-Containing Groundwater Impacting Lake Mead Using A High Performance Bioreactor System Treating High Concentrations of Perchlorate in Groundwater Using a TwoStage Advanced Bioreactor Design Further Reading on Fluidized Bed Reactor (FBR) Denitrification Fluidized Bed Reactors for Wastewater and Groundwater Treatment Treatment of Coal Mining Selenium Wastes Biological Treatment of NDMA using a Fluidized Bed Reactor Denitrification for FGD Wastewater Fluidized Bed Reactors Nitrate Water Treatment – Webinar Video Replay Products Biological Treatment – Liquid Phase Fluidized Bed Reactor (FBR) Membrane Bioreactor (MBR) Suspended Carrier Reactor (SCR) Biological Treatment Vapor Biofilters (I/H/B Series) Biotrickling Filters (BT Series) Integrated Biotrickling/Biofilter Systems (BTF Series) Built-in-Place Biofilters (BIP Series) Filtration Cartridge Filtration Bag Filtration Cartridge and Bag Filter Housings Multi-Media, Dual Media & Sand Filtration Reverse Osmosis Ultrafiltration for Clean Water Ultrafiltration for High Solids Pressure Leaf Filters Adsorption Activated Carbon Systems Advanced Metals Removal System With FerroLock™ Zero Valent Iron Disinfection ION Exchange Systems & Water Softeners Ion Exchange and Demineralization Water Softeners IX Exchange Service Phys/Chem Process How can we help you? Water Treatment Services Operations & Maintenance Services (O&M) Periodic System Service Ion Exchange Resin Regeneration and Tank Exchange Water System Review Markets Mining And Minerals Power Generation Groundwater Remediation Food & Beverage Petrochemical Refining Chemical Processing Industrial And Manufacturing Municipal Drinking Water and Wastewater About Us Contact Us Literature Library News Careers Products Biological Treatment – Liquid Phase Biological Treatment Vapor Filtration Adsorption Disinfection ION Exchange Systems & Water Softeners Phys/Chem Process Contaminants PFAS per-and-polyfluoroalkyl Substances Selenium Water Treatment Nitrate Water Treatment Arsenic Treatment Systems Perchlorate Water Treatment Iron and Manganese Chromium Organics (BOD/COD) Suspended Solids VOC/HAP’s Color/Taste/Odor Ammonia Water Treatment Hydrogen Sulfide Hardness Metals – Other Envirogen Technologies P.O. Box 5419 Kingwood, Texas 77325-5419 713.979.9142 Get Email Updates © Envirogen Technologies. All Rights Reserved. Sitemap | Web Design By Active Web Group