Fluidized bed reactor is widely applied in many industries for various applications recently. The team will utilize existing reactors designed in previous years and evaluate performance based upon the design influent flow rate, hydraulic retention time, biogas yield and cod removal efficiency. Box 1, 2600 ma delft the netherlands received november 20, 1988 b37 abstract since the early 70s, anaerobic treatment of industrial wastewaters has gained. Anaerobic fluidized bed membrane bioreactor for wastewater. Thus extremely high srt could be maintained irrespective of hrt. Review wastewater treatment by anaerobic fluidized. Feb, 20 schematic configuration of anaerobic fluidized bed reactor aerobic moving bed bio reactor system aerobic moving bed bio reactor reactor designed for this section was a plexiglass column in inner diameter of 10 cm and 90 cm height, which 60 cm of its 4. In this type of reactor, a fluid gas or liquid is passed through a solid granular material usually a catalyst possibly shaped as tiny spheres at high enough velocities to suspend the solid and cause it to behave as though it were a fluid. Theoretically, the maximum hydrogen yield hy is 4 mol h 2. The startup of anaerobic fluidized bed reactors, which use manville r.
Granular, inert, activated carbon particles are employed to provide support for biomass. The anaerobic fluidized bed afb team was created to work within the wastewater subteam to operate and analyze benchscale anaerobic reactors. Biohydrogen production by modified anaerobic fluidized bed. The fluidized bed reactor in the anaerobic treatment of. The fluidizedbed bioreactor fbbr is an application of the ls fluidized bed. These bioreactors can be run in a single or double column system, depending on the treatment process being carried out. Until now, oxidation of ammonium has only been known to proceed under aerobic conditions. The effect of upflow velocity on performance and biofilm characteristics of an anaerobic fluidized bed reactor was studied in treating currant wastewater at various loading rates. Review on the application of anaerobic fluidized bed.
Review on the application of anaerobic fluidized bed reactors. Fluidization occurs when small solid particles are suspended in an upward. Investigation of anaerobic fluidized bed reactor aerobic. Anaerobic ammonium oxidation discovered in a denitrifying. Anaerobic treatment methods are more suitable for the treatment of concentrated wastewater streams, offer lower operating costs, the production of usable biogas product. The fluidized bed reactor in the anaerobic treatment of wine. Consequently, a detailed design of a fluidized bed reactor that would allow flexible operation at high temperature and high pressure at several gas velocities will be conducted in order to serve for the future development of new hydrodynamic models. In addition to higher treatment efficiency, longterm operation with. Application of anaerobic fluidized bed reactors in wastewater. University of groningen particle transport in fluidized beds. In this type of reactor, a fluid gas or liquid is passed through a granular solid material usually a catalyst possibly shaped as tiny spheres at high enough velocities to suspend the solid and cause it to behave as though it were a fluid. Fluidized bed reactor 3 and esthetical reasons as dyes impede light penetration, damage the quality of the receiving streams and are toxic to food chain organisms.
Anaerobic fluidized membrane bioreactor the anaerobic fluidized membrane bioreactor afmbr is a novel emerging technology that combines the properties of anaerobic fluidized bed reactor afbr and submerged membrane filtration. Anaerobic sequencing batch reactor asbr anaerobic contact process anaerobic filter af upflow anaerobic slugde blanket uasb fluidized bed reactor hybrid reactor. The anaerobic fluidized bed biofilm reactor afbbr, which uses small, fluidized media for cell immobilization and retention, is a recent process innovation in wastewater treatment. Phenol degradation in an anaerobic fluidized bed reactor packed with low density support materials 89 brazilian journal of chemical engineering vol. The anaerobic fluidized bed reactor afbr showed an excellent performance and attained steady state conditions with cod removal of 90% after 80 days.
Autotrophic growth of anaerobic ammoniumoxidizing micro. Rate of liquid flow and the resulting degree of bed expansion determines whether the reactor is termed a fluidized bed or expanded bed system. Uasbaf able to retain very high concentration of active biomass in the reactor. In this work, the performance of an anaerobic fluidized bed reactor afbr treating synthetic wastewater is experimentally evaluated. The maximum concentration of the gases recorded at 8 h hrt corresponded to the favourable operating environment and good system stability ratio vfaalkalinity pdf. A novel designed anaerobic fluidized bed photoreactor afbpr was applied in photohydrogen production using rhodopseudomonas faecalis rld53 by continuous culture. The anaerobic fluidized bed membrane bioreactor for energy. The anaerobic fluidized bed membrane bioreactor afmbr is a new energyneutral methanogenic biological treatment system that combines an anaerobic fluidized bed reactor afbr and. A novel metabolic pathway for anaerobic ammonium oxidation with nitrite as. Biogas production in the reactor continuously increased and its average yield y gas was defined as 0. Treatment of textile wastewater with an anaerobic fluidized. In the fluidized bed reactor, the maximum contact between the liquid and the support material minimizes the formation of preferential channels and gas retention as the shear stress optimize the biological film thickness. Metabolic pathway of anaerobic ammonium oxidation on the basis of 15 n studies in a fluidized bed reactor astrid a.
The maximum concentration of the gases recorded at 8 h hrt corresponded to the favourable operating environment and good system stability ratio vfaalkalinity anaerobic decomposition, brewery wastewater, fluidized bed reactor, biogas, carbon iv oxide. The reactors will be marketed as fluidized bed, fixed film bioreactors for aerobic and anaerobic degradation of organic compounds in soil and in water. The microbes attach to the fluidized media and form a biofilm on the surface. The influence of various parameters like ph, initial nitrate concentration, carbonnitrogen ratio. Few studies have been carried out on how the use of multiple and complex substrates affects the degradation processes in a mixed anaerobic community developed inside a fluidized bed reactor borja et al. Metabolic pathway of anaerobic ammonium oxidation on the basis of 15n studies in a fluidized bed reactor. The aim of the present work is the performance evaluation of a fluidized bed reactor in the anaerobic treatment of a wastewater deriving from the washing operations of the wine industry. Total microbial count was conducted on the reactor sample water. Posttreatment of anaerobic sulphide and ammonia containing effluents from methane fermentations in highrate fluidized bed reactors on laboratory and pilotplant scale, in proc. The reactor used this study was made of a plexiglass column being 60 mm diameter, 140 cm height, and a.
Startup of anaerobic fluidized bed reactors with acetic. The aim of this study was to investigate the performance of an anaerobic. Review wastewater treatment by anaerobic fluidized membrane. In this study further modification in anaerobic fluidized bed reactor namely the decrease in the total liquid volume to 3. Fluidized bed reactor basic mechanism, mass transfer in fluidized beds, reaction behaviour in a fluidized bed, mole balance on the bubble, the cloud, and the slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. May 20, 2017 the anaerobic fluidized bed afb team was created to work within the wastewater subteam to operate and analyze benchscale anaerobic reactors. For the catalytic cracking of petroleum naphthas to form gasoline blends, for example, the virtues of the fluidizedbed reactor drove its competitors from the market. Fluidizedbed bioreactor applications for biological. Cod in the effluent of anaerobic reactors processing domestic sewage. The anaerobic fluidized bed and the expanded granular sludge bed reactors, with hrts of about 24 h and the uasb reactor, with an hrt of 48 h offer good results, while the attached growth process named anaerobic filter needs a longer hrt on assuming constant organic loading rates for all systems. 87 98, january march, 2012 evaluation of anaerobic phenol degradation in batch reactors the experiments for evaluating the potential of. Application of anaerobic fluidized bed reactors in. Expanded bed reactors have a bed expansion of 10% to.
Stateoftheart of anaerobic digestion technology for. The work involves experimental investigation on biological denitrification in a fluidized bed reactor under anaerobic conditions using the microorganism pseudomonas stutzeri and plastic beads as fluidizing medium. The fluidizedbed reactor has the ability to process large volumes of fluid. Startup of an anaerobic fluidized bed reactor for landfill. Due to increasing importance of treatment of wastewater in fbr critical examinations of the. Metabolic pathway of anaerobic ammonium oxidation on the. Box 1, 2600 ma delft the netherlands received november 20, 1988 b37 abstract since the early 70s, anaerobic treatment of industrial wastewaters has. Fluidized bed reactors have been used and design for different physical and chemical process for example, catalytic cracking, fluid transportation and drying. Pdf design and startup of an anaerobic fluidized bed. Influence of upflow velocity on performance and biofilm. The aim of this work is to study the anaerobic treatment of a synthetic substrate using a fluidized bed reactor containing microorganisms inmobilized on sand particles and adjust an afbr model from laboratory scale experimental data with emphasis on the evaluation of. The reactor used this study was made of a plexiglass column being 60 mm diameter, 140 cm height, and a volume of 3.
Fluidized bed reactors for anaerobic wastewater treatment. In conclusion it appears that the anaerobic fluid bed process seems to be able to withstand shocks of either t, ph, or cod. University of groningen particle transport in fluidized. After the description of the characteristics of threephase fluidized bed and theoretical aspects which could affect the operation of an anaerobic reactor, the design considerations and recommendations based upon characteristics of the wastewater to be. The anaerobic fluidized bed membrane bioreactor for energyefficient wastewater reuse subject presentation by perry mccarty, stanford university, at the hydrogen, hydrocarbons, and bioproduct precursors from wastewaters workshop held march 18 19, 2015. Anaerobic fluidized bed afb reactor aguaclara dashboard. Introduction in the technical design for anaerobic treatment. A fluidized bed reactor fbr is a type of reactor device that can be used to carry out a variety of multiphase chemical reactions.
But somehow, under most bioreactor design and operation conditions the maximum possible hydrogen yield hy. Anaerobic membrane bioreactors have potential for energyefficient treatment of domestic and other wastewaters, membrane fouling being a major hurdle to application. Mar 14, 2006 diesel fuel spills have a major impact on the quality of groundwater. Nov 25, 2014 the effect of upflow velocity on performance and biofilm characteristics of an anaerobic fluidized bed reactor was studied in treating currant wastewater at various loading rates. Basic design of a fluidized bed reactor for wastewater. Results are presented on pilot and fullscale pretreatment of industrial wastewater in an anaerobic 2state fluidized bed reactor for ch4production and laboratory and pilot scale posttreatment. Nov 06, 2016 fluidized bed reactor basic mechanism, mass transfer in fluidized beds, reaction behaviour in a fluidized bed, mole balance on the bubble, the cloud, and the slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Both nitrate and ammonium consumption increased with concomitant gas production.
The anaerobic fluidized bed reactor afbr corresponds to a high rate system with adhered microbial growth. Factors affecting biogas production during anaerobic. The fluidized bed bioreactor fbbr is an application of the ls fluidized bed. Pdf investigation of anaerobic fluidized bed reactor. Wastewater treatment in anaerobic fluidized bed reactors in table 1 the laboratory and pilot results of anaerobic fluidized bed reactors have been summarized with respect to soluble cod removal. The anaerobic fluidized bed membrane bioreactor afmbr is a new energyneutral methanogenic biological treatment system that combines an anaerobic fluidized bed reactor afbr and internal membranes. Anaerobic fluidized bed membrane bioreactors for the. The microbes attach to the fluidized media and form a. This eventually resulted in a decrease in biofilm microbial activity and the need for higher pumping rates to maintain the same degree of bed expansion. The results are in agreement with the ones obtained using a mixture of municipal and food processing wastewaters containing high organic contents.
Fluidized bed reactor fbr in order to achieve fluidization of the biomass particles, units must be operated in an upflow mode. It was found that fouling can be controlled if membranes are placed directly in contact with the granular activated carbon gac in an anaerobic fluidized bed bioreactor afmbr used here for posttreatment of effluent from. Anaerobic biodegradation of diesel fuelcontaminated. The reactor was made of a plexiglass column 60 mm in diameter, 140 cm in height, with a volume of 3. Kinetics of an anaerobic fluidized bed reactor using biolite.
Design and startup of an anaerobic fluidized bed reactor. Anaerobic up flow fluidized bed reactor performance as a. Anaerobic fluidized bed systems how is anaerobic fluidized. Biohydrogen production from soft drink industry wastewater in. Anaerobic fluidized bed treatment of an industrial wastewater. Fluidized bed reactor an overview linkedin slideshare. The aim of this study was to investigate the performance of an anaerobic fluidized bed reactor afbraerobic moving bed bio reactor mbbr in series arrangement to treat currant wastewater. Pdf metabolic pathway of anaerobic ammonium oxidation on.
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