It has been applied to a wide spectrum of wastewaters on both domestic and industrial scales. Read online upflow anaerobic sludge blanket uasb reactor in. Integrated application of upflow anaerobic sludge blanket reactor for the treatment of wastewaters. Upflow anaerobic sludge blanket uasb technology, normally referred to as uasb reactor, is a form of anaerobic digester that is used for wastewater treatment. The merits of anaerobic and aerobic bioreactors are. Treatment of domestic wastewater using upflow anaerobic sludge blanket reactor.
The sludge is carried by the upflow movement of the gas bubbles, and the installation of a threephase separator gases, solids and liquids in the upper part of the reactor is necessary, to allow sludge retention and return. Anaerobic treatment of municipal wastewater in uasbreactors. Uasb reactor is based on that anaerobic sludge exhibits inherently good settling properties, provided the sludge is not exposed to heavy mechanical agitation. It is normally referred to as uasb reactor, is a form of anaerobic digester that is used for wastewater treatment. An upflow anaerobic sludge blanket reactor was designed to handle 8,800 liters per day of the influent and field tested for energy production from biomethanation of papaya fruit processing jam. Design of an anaerobic digester 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. Upflow anaerobic sludge blanket uasb reactor adequate mixing is provided by an even flowdistribution combined with a sufficiently high upflow. Chapter 4 anaerobic sewage treatment using uasb reactors. The high rate reactors, the upflow anaerobic sludge blanket reactor has been successfully. Treatment of domestic wastewater using upflow anaerobic. Upflow anaerobic sludge blanket, or uasb, is a form of anaerobic oxygenfree digester used in wastewater treatment. Performance of upflow anaerobic sludge blanket uasb.
The up flow anaerobic sludge blanket uasb reactor is considered to be one of the most successful anaerobic systems, capable of forming dense aggregates by auto. Treatability studies of dairy wastewater by upflow anaerobic. Anaerobic pretreatment of domestic sewage using uasb reactor systems offers a number of advantages, e. Jun 24, 2017 anaerobic treatment is very common in wastewater treatment plants in developing countries. This acceptance stems from its simplicity, economy and the possibility of energy recovery.
Upflow anaerobic sludge blanket uasb reactors retain biological solids in the form of granular pellets or large agglomerates of flocculated cells that are sufficiently large and dense to settle against the upflow velocity. Up flow anaerobic sludge blanket technology also known as uasb reactor is a form of anaerobic digester which used in wastewater treatment. An upflow anaerobic sludge blanket reactor was designed to handle 8,800 liters per day of the influent and field tested for energy production from. Treatability studies of dairy wastewater by upflow anaerobic sludge blanket reactor r. Application of uasb reactor in industrial wastewater. Performance of upflow anaerobic sludge blanket uasb reactor and other anaerobic reactor configurations for wastewater treatment. Uasb is a hybrid type of reactor, involving both suspended and attached growth process. The upflow anaerobic sludge blanket uasb reactor is an attractive alternative for regions in hot climates since it works better under mesophilic conditions and it does not need any supporting structure for the development of microorganisms, which grow in the form of granules. Operation of an upflow anaerobic sludge blanket reactor uasb tony davies, operation manager, campaspe water reclamation scheme, earthtech engineering. The most characteristic device of uasb reactor is the three phase separator or settler. May 02, 2016 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 hard drives. 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. It is a maintenancefree, corrosionfree and rugged process with a straightforward design. Jakov buljan agroindustries and sectoral support branch.
Up flow anaerobic sludge blanket reactor uasb about anaerobic 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. The upflow anaerobic sludge blanket uasb reactor is by far the most widely used high rate anaerobic treatment system for variety of wastewater van h aandel and lettinga,1994. Similar but variant technology to uasb is the expanded granular sludge. Pdf integrated application of upflow anaerobic sludge. Since the mid 1990s, approximately 10 years after the installation of the first pilot scale upflow anaerobic sludge bed uasb reactors for the treatment of municipal. Pdf design of upflow anaerobic sludge blanket uasb. The upflow anaerobic sludge blanket uasb reactor has been recognized as an important wastewater treatment technology among anaerobic treatment methods. Jun 20, 2007 this paper presents the findings of the study on treatment of domestic wastewater using a laboratory scale hybrid upflow anaerobic sludge blanket huasb reactor. Degradation of methanethiol in a continuously operated.
Uasb reactor is a methaneproducing digester, which uses an anaerobic process and forming a blanket of granular sludge and is processed by the anaerobic. The hydrodynamic characteristics of upflow anaerobic sludge blanket uasb reactors were investigated in this study. While the cod removal varied from 7586%, the bod removal was in the. Download upflow anaerobic sludge blanket uasb reactor in. Useful parameters for monitoring the health of the digesters were identified and techniques for measuring each parameter were evaluated to determine the best analytical methods. This paper discusses the operation and principles of a uasb in a domestic wastewater treatment plant. A suspended sludge blanket filters and treats the wastewater as the wastewater flows through it. One of the more interesting new processes is the upflow anaerobic sludge blanket process uasb, which was developed by lettinga and his coworkers in holland in the early 1970s.
Pdf treatment of distillery wastewater in an upflow. Upflow anaerobic sludge blanket uasb technology, normally referred to as uasb reactor, is a form of anaerobic digester that is used for wastewater treatment the uasb reactor is a methanogenic methaneproducing digester that evolved from the anaerobic clarigester. Upflow anaerobic sludge blanket uasb reactor in wastewater. The upflow anaerobic sludge blanket reactor uasb is a single tank process. Upflow anaerobic sludge blanket reactors for treatment of. Clarifier hybrid upflow anaerobic sludge blanket ec. 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 hard drives. The upflow anaerobic sludge blanket uasb reactor has found wide acceptance in the treatment of industrial wastewaters since its development in the netherlands. Biotim uasb upflow anaerobic sludge blanket technology 40 years of pioneering.
Kandasamy encyclopedia of life support systemseolss the uasb reactor concept resembles the upflow sludge blanket process except that sludge recirculation andor mechanical agitation are kept at minimum or. 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. Design of upflow anaerobic sludge blanket uasb reactor. Treatment of distillery wastewater in an upflow anaerobic sludge blanket uasb reactor article pdf available in desalination and water treatment 5710. Performance of upflow anaerobic sludge blanket uasb reactor.
Effect of different parameters and developments for domestic wastewater treatment. Chapter 4 anaerobic sewage treatment using uasb reactors edx. Design of upflow anaerobic sludge blanket uasb reactor for. 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. Uasb reactor is used in the treatment of slaughterhouse. Sizing of uasb upflow anaerobic pond for wastewater. Upflow anaerobic sludge blanket reactor uasb sswm find. The key to the process was the discovery that anaerobic sludge inherently has superior flocculation and settling characteristics, provided the physical and chemical. Anaerobic treatment of sugar industry wastewater by upflow. 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. Modelling of an upflow anaerobic sludge blanket reactor. Upflow anaerobic sludge blanket uasb technology, normally referred to as the uasb reactor, is a form of an anaerobic digester that is used for wastewater treatment. Wastewater enters the reactor from the bottom, and flows upward.
In a continuous experiment using a laboratoryscale upflow anaerobic sludge blanket uasb reactor with a volume of 2. Operation performance and granule characterization of. Upflow anaerobic sludge blanket reactors are designed. Effect of different parameters and developments for domestic wastewater treatment table 3 advantages and disadvantages of uasb reactor technology. Central leather research institute, adyar, chennai. The reactor was operated at a hydraulic residence time hrt of 6 hours, temperature of. The upflow anaerobic sludge blanket uasb reactor has been recognized as an important wastewater treatment technology among anaerobic. One of these reactors is the upflow anaerobic sludge blanket uasb reactor. The efforts have resulted in new type of upflow anaerobic sludge blanket uasb process, which in recent 6 m 3 pilot. Performance and microbial community variations of a upflow. Upflow anaerobic sludge blanket uasb reactor the problem associated with anaerobic filters and fbrs has led to development of unpacked reactors that still incorporate an immobilized form of particulate biomass. Operation performance and granule characterization of upflow anaerobic sludge blanket uasb reactor treating wastewater with starch as the sole carbon source. Pdf this paper presents the findings of the study on treatment of domestic wastewater using a laboratory scale hybrid upflow anaerobic sludge blanket.
Jan 17, 20 upflow anaerobic sludge blanket, or uasb, is a form of anaerobic oxygenfree digester used in wastewater treatment. It is a methaneproducing digester which uses an anaerobic process and forming a blanket of granular sludge and is processed by anaerobic microorganism. While the cod removal varied from 7586%, the bod removal was in the range of 7091%. Use of the upflow sludge blanket usb reactor concept for. Upflow anaerobic sludge blanket digestion wikipedia. Review of upflow anaerobic sludge blanket reactor technology.
This video shows an uasb reactor tipically designed for wastewater treatment plants where it is possible. Apr 15, 2018 upflow anaerobic sludge blanket reactor 1. Upflow anaerobic sludge blanket reactor anaerobic digestion. An enhanced treatment performance of the twophase system and degradation 1930% and saturation 1012% of lcfas in acidogenesis was found. A similar but variant technology to uasb is the expanded granular sludge bed egsb digester. Huasb reactor in treating slaughterhouse wastewater under the mesophilic temperature was studied. Anaerobic sludge blanket reactors global water pathogen project. The contents presented in this paper focuses on the performance of uasb upflow anaerobic sludge blanket reactor for treating various industrial and domestic wastewaters at various operating conditions. An upflow anaerobic sludge blanket reactor was designed to handle 8,800 liters per day of the influent and field tested for energy production from biomethanation of papaya fruit processing jam industry wastes. Up flow anaerobic sludge blanket reactor uasb iwa publishing.
Upflow anaerobic sludge blanket uasb reactors have been widely used for the treatment of industrial wastewater. Upflow anaerobic sludge blanket uasb reactor in wwtp youtube. Design of uasbr upflow anaerobic sludge blanket reactor. The biothane uasb upflow anaerobic sludge blanket technology is a proven and reliable process, exclusively owned by biothane. Water and wastewater treatment technologies upflow anaerobic sludge blanket uasb reactor in wastewater treatment k.
Hydrodynamics of upflow anaerobic sludge blanket reactors. This study involves the treatment of dairy industry wastewater by uasb reactor by varying the retention times in days for a particular organic. The uasb reactor is a methanogenic methaneproducing digester that evolved from the anaerobic clarigester. Anaerobic sludge blanket reactors global water pathogen. Calculation shows that in the prevailing conditions, 1. Upflow anaerobic sludge blanket reactor view presentation slides online. Advantages and disadvantages of uasb reactor technology. 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 3phaseseparation of water, sludge and gas methane. This paper will outline why the uasb was chosen for the echuca reclamation scheme. In uasbr the upflow movement of influent and the raising gas will keep the biomass in a very active and suspended state. Pdf the upflow anaerobic sludge blanket uasb reactor has found wide acceptance in the treatment of industrial wastewaters since its. Upflow anaerobic sludge blanket technology also known as uasb reactor is a form of anaerobic digester that used in wastewater treatment. Treatability studies of dairy wastewater by upflow.
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