Water and wastewater treatment technologies upflow anaerobic sludge blanket uasb reactor in wastewater treatment k. Upflow anaerobic sludge blanket uasb reactor is a widely used anaerobic treatment of wastewater that has numerous benefits over its alternatives, including aerobic wastewater treatments lettinga et al. These particulate organics degrade at a slower rate than the soluble organics. Sanitation systems perspective sswm find tools for. Apr 10, 2014 upflow anaerobic sludge blanket uasb technology, normally referred to as uasb reactor, is a form of anaerobic digester that is used in the treatment of waste slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Hydrodynamics of upflow anaerobic sludge blanket reactors. This favours the formation of granules and well settling flocs. The hydrodynamic characteristics of upflow anaerobic sludge blanket uasb reactors were investigated in this study. Yeom 1civil and environmental engineering centre for zero emission technology sung kyun kwan university, korea 2centre for environmental studies ces anna university, chennai 600025 tamilnadu, india int. The system is selfmixed by the upflow movement of biogas bubbles and by the liquid flow through the. Upflow anaerobic sludge blanket, or uasb, is a form of anaerobic oxygen free digester used in wastewater treatment.
Pdf design of upflow anaerobic sludge blanket uasb. Upflow anaerobic sludge blanket uasb reactors and anaerobic baffled reactors abrs are sanitation technologies that are designed to remove organic matter measured as bod or cod. Upflow anaerobic sludge blanket reactor how is upflow anaerobic sludge blanket reactor abbreviated. Central leather research institute, adyar, chennai. Operation performance and granule characterization of upflow anaerobic sludge blanket uasb reactor treating wastewater with starch as the sole carbon source. Conventional upflow anaerobic sludge blanket uasb reactor is used in the treatment of slaughterhouse wastewater to meet the discharge. Modelling of an upflow anaerobic sludge blanket reactor. Cattle slaughterhouse wastewater csww with an average chemical oxygen demand cod and biochemical oxygen demand of 32,000 mgl and 17,000 mgl, respectively, can cause a severe environmental hazard if discharged untreated. This ebook is a compilation of information from a well known wiki website, and this it can be given away by those that download this pdf to their.
Jul 03, 2011 upflow anaerobic sludge blanket uasb test rig. Ijerph free fulltext a comparative study of biogas production. The uasb upflow anaerobic sludge blanket process and egsb with high liquid andor gas upflow velocities require biomass with excellent settling characteristics. The highest methane production rate of 510 ml ch 4 l. Lucas anaerobic is the brand name for an anaerobic waste water treatment system which uses upflow anaerobic sludge blanket, upflow anaerobic contact, anaerobic filtration and hybrid anaerobic filtration technologies for treating waste water depending on specific requirement. Upflow sludge blanket filtration usbf water online. Jan 17, 20 upflow anaerobic sludge blanket, or uasb, is a form of anaerobic oxygen free digester used in wastewater treatment. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that. An upflow anaerobic sludge blanket uasb reactor is basically a tank that has a sludge bed in which organic material dissolved in the wastewater is degraded, and as a consequence of this digestion, biogas is produced.
Wastewater treatment is a process used to remove contaminants from wastewater or sewage and convert it into an effluent that can be returned to the water cycle with minimum impact on the. Upflow anaerobic sludge blanket reactor view presentation slides online. Upflow anaerobic sludge blanket uasb reactors used for. Performance evaluation of upflow anaerobic sludge blanket.
The sludge blanket is comprised of microbial granules 1 to 3 mm in diameter, i. These particulate organics degrade at a slower rate than the soluble organics found in sewage. Wastewater enters the anoxic compartment of the bioreactor where it mixes with activated sludge recycled from the bottom of the sludge filter. In a partnership with coliban water, earthtech will operate the echuca water. Applicability of upflow anaerobic sludge blanket and dynamic. Upflow anaerobic sludge blanket digestion wikimili, the. Superpulsator highrate sludge blanket clarifier duration. The up flow anaerobic sludge blanket uasb process has emerged as a promising highrate anaerobic digestion technology for the treatment of low to highstrength soluble and complex wastewaters. This study investigated the applicability of dynamic membrane filter dmf technology in an upflow anaerobic sludge blanket uasb and dmfcoupled process for the treatment of municipal wastewater. Upflow anaerobic sludge blanket uasb technology, normally referred to as uasb reactor, is a form of anaerobic digester that is used in the treatment of waste slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising.
One of these reactors is the upflow anaerobic sludge blanket uasb reactor. Up flow anaerobic sludge blanket uasb reactor belongs to highrate systems, able to perform anaerobic reaction at reduced hydraulic retention time, if compared to traditional digesters. Upflow sludge blanket filtration usbf operation of a usbf plant is simple and selfregulating. Upflow anaerobic sludge blanket uasb reactors and anaerobic baffled reactors abrs are sanitation technologies that are designed to. Contact between sludge and feed is increased by the biogas production. The merits of anaerobic and aerobic bioreactors are.
Schematic diagram of the upflow anaerobic sludge blanket uasb reactors sector. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Operation performance and granule characterization of. Performance comparison of conventional and modified upflow. It is a methaneproducing digester which uses an anaerobic process and forming a blanket of granular sludge and. Upflow anaerobic sludge blanket how is upflow anaerobic sludge blanket abbreviated. Performance of upflow anaerobic sludge blanket uasb. List of upflow anaerobic sludge blanket companies, manufacturers and suppliers. Bioengineering free fulltext upflow anaerobic sludge. Upflow anaerobic sludge blanket digestion wikipedia. But, unfortunately, this type of ad treatment can only handle quite low contamination levels in effluents, but with the. Up flow anaerobic sludge blanket technology also known as uasb reactor is a form of anaerobic digester which used in wastewater treatment. Treatment of domestic wastewater using upflow anaerobic sludge blanket reactor 1j.
The concentration of sludge in this area usually ranges between 1 and 3%. Conventional upflow anaerobic sludge blanket uasb reactor is used in the treatment of slaughterhouse wastewater to meet the discharge standard limit of wastewater. Chapter 4 anaerobic sewage treatment using uasb reactors edx. Pdf anaerobic sludge blanket reactors researchgate. Pdf treatment of domestic wastewater using upflow anaerobic. Nowadays, the technology is being increasingly used for the benefits of the methane it produces. Anaerobic sludge blanket reactors global water pathogen. Municipal solid waste responses to requests for information pdf. Upflow anaerobic sludge blanket uasb reactor in wwtp. Download this upflow anaerobic sludge blanket process ebook and keep it on your hard drive for later reference. Performance of upflow anaerobic sludge blanket uasb reactor. Operation performance and granule characterization of upflow. Upflow anaerobic sludge blanket uasb reactor in wwtp youtube. Design of uasbr upflow anaerobic sludge blanket reactor.
An upflow anaerobic sludge blanket reactor was designed to handle 8,800 liters per. Operation performance and granule characterization of upflow anaerobic sludge blanket uasb reactor treating wastewater with starch as the sole carbon source author links open overlay panel xueqin lu a guangyin zhen b adriana ledezma estrada a mo chen c jialing ni a toshimasa hojo a kengo kubota a yuyou li a c. It is a methaneproducing digester which uses an anaerobic process and forming a blanket of granular sludge and is processed by anaerobic microorganism. Typically, granular sludge or anaerobic sludge grown on inorganic support is used for these processes. The upflow anaerobic sludge blanket reactor was operated at various hydraulic retention times and was fed with palm oil mill effluent as a carbon source. Sizing of uasb upflow anaerobic pond for wastewater. Kandasamy encyclopedia of life support systemseolss can be traced to the processing of industrial chemicals and nearly 40% of the total organic pollution to the food processing industry alone. A similar but variant technology to uasb is the expanded granular sludge. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. The raw wastewater originating from the industrial process requires pretreatment to prepare it for the anaerobic treatment process.
The anaerobic treatment of waste water has been studied with an emphasis on the up flow anaerobic sludge blanket uasb reactor. Sewage, a complex wastewater, contains 3070% particulate chemical oxygen demand codp. Jakov buljan agroindustries and sectoral support branch. The sludge and the biogas are separated from the effluent in the gls separator. Upflow anaerobic sludge blanket uasb reactors, expanded granular sludge bed egsb reactors and anaerobic baffled reactors abrs are considered highrate anaerobic process reactors that are designed to remove organic matter measured as biochemical oxygen demand bod or chemical oxygen demand cod and recover methane. They can also recover methane, which can be managed to produce energy. Uasb reactor is a methaneproducing digester, which uses an anaerobic process and forming a blanket of granular sludge and is processed by the anaerobic microorganisms. Pdf performance of upflow anaerobic sludge blanket uasb. Upflow anaerobic sludge blanket reactor anaerobic digestion. The biothane uasb upflow anaerobic sludge blanket technology is a proven and reliable process, exclusively owned by biothane. With the rising cost of energy and continuously increasing pressure to be more conscious of the amount of energy used in processes, aerobic wastewater. Review of upflow anaerobic sludge blanket reactor technology.
Methanogenesis in an upflow anaerobic sludge blanketreactor. Design of an anaerobic digester for wastewater treatment. The wastewater enters the reactor through a well designed distribution system and is distributed equally over the bottom of the reactor. The upflow anaerobic sludge blanket uasb reactor has been recognized as an important wastewater treatment technology among anaerobic treatment methods. Upflow anaerobic sludge blanket uasb test rig youtube. A suspended sludge blanket filters and treats the wastewater as the wastewater flows through it. Upflow anaerobic sludge blanket technology also known as uasb reactor is a form of anaerobic digester that used in wastewater treatment. The blanket of anaerobic sludge is maintained in the lower section of the reactor and the incoming wastewater is forced to percolate upwards through this blanket. Jun 19, 2017 this study investigated the applicability of dynamic membrane filter dmf technology in an upflow anaerobic sludge blanket uasb and dmfcoupled process for the treatment of municipal wastewater.
The anaerobic reactor is a upflow anaerobic sludge blanket reactor uasb. Pdf on jan 1, 2018, stewart oakley and others published. Schematic of an upflow anaerobic sludge blanket reactor uasb. Upflow anaerobic sludge blanket uasb reactors have been widely used for the treatment of industrial wastewater.
This reactor type is very well suited for wastewater. The upflow anaerobic sludge blanket reactor uasb is a single tank process. The anaerobic digestion of sludge using the upflow anaerobic sludge blanket uasb process has been used for water treatment for many years. Upflow anaerobic sludge blanket reactor listed as uasbr. The process is essentially based on a special flow regime allowing the sewage to get into contact with a sludge blanket or sludge bed situated in the reactor, and a following 3. The usab design is tailor made to suit the wastewater characteristics given in table 2. A model to describe the processes occurring in a uasb reactor was developed and an experimental study of the anaerobic wastewater treatment systems in nicaragua was also performed. Wastewater enters the reactor from the bottom and flows upward. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Upflow anaerobic sludge blanket reactor how is upflow. Boot, flow equalisation tank fet, upflow anaerobic sludge blanket uasb, chemical oxygen demand cod, volatile fatty acids vfa,s, microorganisms acidogenic, acetogenic, methanogenic.
Anaerobic sludge blanket reactors global water pathogen project. Chapter 4 anaerobic sewage treatment using uasb reactors. The lucas anaerobic technology is typically applied as a first. In water treatment many plants have been built and operated purely for water treatment purposes. Wastewater enters the reactor from the bottom, and flows upward. Upflow anaerobic sludge blanket how is upflow anaerobic. The upflow anaerobic sludge blanket process uasb has been around for many years, so it clearly can work well. Kandasamy encyclopedia of life support systemseolss can be traced to the processing of industrial chemicals and nearly 40% of the total. Upflow anaerobic sludge blanket uasb technology, normally referred to as uasb reactor, is a. Some of the gas produced within the sludge blanket becomes attached to the biological granules huishoff pol et al. Upflow anaerobic sludge blanket uasb reactor in wastewater.
Figure 8 shows the effluent ph pattern of the r1 and r2 uasb reactors. The uasb reactor is a methanogenic methaneproducing digester that evolved from the anaerobic clarigester. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. They are considered sludge blanket reactors because the influent wastewater receives treatment by passing. Upflow anaerobic sludge blanket uasb technology, normally referred to as uasb reactor, is a form of anaerobic digester that is used for wastewater treatment. Uasb reactor is a methaneproducing digester, which uses an anaerobicprocess and forming a blanket of granular sludge and is processed by the anaerobic microorganisms. An area of more dispersed bacterial growth, name sludge blanket, is developed above the sludge bed, with solids presenting lower concentration and settling velocities. It is a maintenance free, corrosion free and rugged process with a straightforward design.
Treatment of domestic wastewater using upflow anaerobic. Unesco eolss sample chapters water and wastewater treatment technologies upflow anaerobic sludge blanket uasb reactor in wastewater treatment k. Applicability of upflow anaerobic sludge blanket and. Biothane uasb upflow anaerobic sludge blanket anaerobic wastewater treatment is based on the conversion of organic pollutants cod into biogas in an oxygen free atmosphere.