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Novel dispersed plug flow model for UASB reactors focusing .

Novel dispersed plug flow model for UASB reactors focusing on sludge . mathematical model for the UASB reactor concept, combining sludge dynamics, solid-liquid-gas . in the blanket zone of VASE reactors was proposed (Narnoli and Mehrotra, 1997) on the basis of the so-called diffusion concept.

Performance of UASB Post Treatment Technologies for Sewage .

Upflow Anaerobic Sludge Blanket (UASB) process is a popular process for treatment of sewage in India due to its low power requirement. However, UASB system has many limitations in terms of removal of carbon, nutrients and pathogens. This requires post treatment after UASB to meet the treated water quality standards.

Anaerobic Treatment of Domestic Sewage with Special .

Mar 15, 2017 · Machdar, Y.Sekiguchi,H.Sumino,A.Ohashi,and H.Harada(1997).combination of a UASB reactor and a curtain type DHS reactor as a cost-effective sewage treatment system for developing countries.Wat.Sci.Tech vol 42 Nos 3-4 pp83-88 IWA publishing 2000. R.A.Barbosa and G.L.Sant'Anna Jr(1989).Treatment Of Domestic Sewage In An UASB Reactor.Wat . Res.

Design of an Anaerobic Digester for Wastewater Treatment

In the present studies, design of an upflow anaerobic sludge blanket (UASB) type digester has been undertaken for treatment of SLIET waste-water. The USAB design is tailor made to suit the waste-water characteristics given in Table 2. Total population at SLIET = 10,000 Average flow rate of .

Upflow Anaerobic Sludge Blanket (UASB) Treatment of Sewage

Sep 20, 2016 · Up flow anaerobic sludge blanket process (UASB),was developed by Lettinga and his co-workers in Holland in the early 1970's Anaerobic granular sludge bed technology refers to a special kind of reactor concept for the "high rate" anaerobic treatment of wastewater.

Up Flow Anaerobic Sludge Blanket (UASB) - Yash Enviro

UASB (Up flow anaerobic sludge blanket) technology reactor is a form of anaerobic digester. It is used for treating wastewater. A UASB reactor is a methane-producing digester. It is believed to use an anaerobic procedure and form a blanket of granular sludge and is processed by the anaerobic .

Treatment of Dairy waste water using UASB Reactor and .

using sustainable method like UASB reactor (i.e. Upflow Anaerobic Sludge Blanket reactor). The Upflow Anaerobic Sludge Blanket (UASB) process is one of the recent developments in field of anaerobic treatment. In this process the use of primary treatment and the filter bed is completely eliminated. The UASB process is seen as one of

Use of the upflow sludge blanket (USB) reactor concept for .

Use of the upflow sludge blanket (USB) reactor concept for biological wastewater treatment, especially for anaerobic treatment Published on Apr 1, 1980 in Biotechnology and Bioengineering 4.26 · DOI : 10.1002/bit.260220402 Copy DOI

Upflow Anaerobic Sludge Blanket Reactor (UASB) | SSWM .

After several weeks of use, larger granules of sludge form which, in turn, act as filters for smaller particles as the effluent rises through the cushion of sludge. Because of the upflow regime, granule-forming organisms are preferentially accumulated as the others are washed out. Cross-section of an Upflow Anaerobic Sludge Blanket (UASB) reactor.

UASB Reactor | SSWM

The upflow anaerobic sludge blanket reactor (UASB) is a single tank process in an anaerobic centralised or decentralised industrial wastewater or blackwater treatment system achieving high removal of organic pollutants. Wastewater enters the reactor from the bottom, and flows upward. A suspended sludge blanket filters and treats the wastewater as the wastewater flows through it.

Anaerobic Reactors Used for Waste Water Treatment .

Mar 15, 2017 · Abstract. Different types of reactor configurations used for the anaerobic treatment of wastewaters are presented in this chapter. Anaerobic lagoon, anaerobic contact process, anaerobic filter, upflow anaerobic sludge blanket reactor, fluidized bed reactor, expanded granular sludge bed reactor, internal circulation reactor, anaerobic baffled reactor, membrane coupled high-rate and .

Sludge blanket anaerobic baffled reactor . - IWA Publishing

The methane content in this sludge blanket anaerobic baffle reactor was higher compared to some other systems such as conventional UASB with biogas methane content fluctuating between 40 and 60% (Yu et al. 2002), but comparable to reported biogas yield in co-digestion of blackwater (Elmitwalli et al. 2002) and in a 'MIX-UASB reactor .

DESIGN ANALYSIS OF 345 MLD SEWAGE TREATMENT PLANT .

Upflow anaerobic sludge blanket (UASB) reactor is a popular anaerobic reactor for both high and low temperature (Dinsdale, et al., 1997). The UASB reactor is by far the most widely used high rate anaerobic system for anaerobic sewage treatment. The First UASB was developed by Dr. Gatze Lettinga and colleagues in the late 1970 at the

ANAEROBIC TREATMENT OF WASTEWATER IN A 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 immobilisation and consequently allowing high-rate reactor performance (Kaluzhnyi et al, 2006). Its primary use is in the treatment of high concentration industrial

COMMISSIONING AND OPERATION OF HIGH RATE .

The design concept of the HRAL reactor incorporates similar principles to that employed in the Up-flow Anaerobic Sludge Blanket (UASB) system. Raw waste is fed into the lagoon through a number of inlets spread over the lagoon base. The wastewater passes up through a sludge blanket

Post treatment of up-flow anaerobic sludge blanket based .

This paper presents a critical review on the treatment of domestic sewage by anaerobic process and specifi cally in the up-flow anaerobic sludge blanket (UASB) reactor and its post treatment concept as the core. The increased removal efficiency of the UASB reactor when post treatments for UASB are used is summarized.

Characteristics, Process Parameters, and Inner Components .

Jan 23, 2014 · In the late 1970s, the upflow anaerobic sludge blanket (UASB) process was developed by Dr. Gatze Lettinga and colleagues to represent the second generation of AB [9, 10]. In the beginning, a UASB reactor was just like an empty tank (thus an extremely simple and inexpensive design), but an important inner component, the three-phase separator, is .

Concept and application of anaerobic suspended granular .

Nov 16, 2013 · Bed expansion serves an important function in the design and operation of an upflow anaerobic reactor. An analysis of the flow pattern of expanded granular sludge bed (EGSB) reactors shows that most EGSB reactors do not behave as expanded bed reactors, as is widely perceived. Rather, these reactors behave as fluidized bed reactors based on the classic chemical reactor theory.

Design of Upflow Anaerobic Sludge Blanket (UASB) reactor .

Upflow Anaerobic Sludge Blanket (UASB) reactors have been widely used for the treatment of industrial wastewater. 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.

UASB/EGSB APPLICATIONS FOR INDUSTRIAL WASTEWATER .

UASB Anaerobic granular sludge bed technology refers to a special kind of reactor concept for the "high rate" anaerobic treatment of wastewater. The concept was initiated with upward-flow anaerobic sludge blanket (UASB) reactor. A scheme of a UASB is shown in Figure 2 below. From a hardware

Upflow Anaerobic Sludge Blanket Reactor - Akvopedia

The upflow anaerobic sludge blanket reactor (UASB) is a single tank process. Wastewater enters the reactor from the bottom, and flows upward. A suspended sludge blanket filters and treats the wastewater as the wastewater flows through it.. The sludge blanket is comprised of microbial granules (1 to 3 mm in diameter), i.e., small agglomerations of microorganisms that, because of their weight .

UASB/EGSB APPLICATIONS FOR INDUSTRIAL WASTEWATER .

UASB Anaerobic granular sludge bed technology refers to a special kind of reactor concept for the "high rate" anaerobic treatment of wastewater. The concept was initiated with upward-flow anaerobic sludge blanket (UASB) reactor. A scheme of a UASB is shown in Figure 2 below. From a hardware

Mass Flow and Energy Efficiency of . - IWA Publishing

Special Offer: Cao Ye Shi Author Set - Buy all three books together and save a total £76!Mass Flow and Energy Efficiency of Municipal Wastewater Treatment Plants presents the results of a series of studies that examined the mass flow and balance, and energy efficiency, of municipal wastewater treatment plants; it offers a vision of the future for municipal wastewater treatment

Artificial Neural Network Based Model for the Prediction .

UHASB is an improved version of the UASB system and combines the merits of the up flow sludge blanket and the fixed film reactors. The hybrid reactor is an economical solution for the treatment of municipal sewage. This paper presents the predictions of the effluent from a UHSAB reactor using artificial neural network.

Upflow Anaerobic Sludge Blanket (UASB) - TAERSA

In the UASB reactors, the process consists mainly of an upward flow going through a thick layer (blanket) of suspended sludge with high biological activity. Solids profile inside the reactor varies from dense and granulated particles with great settling characteristics at the bottom of the reactor to more flocculent or lighter sludge in the .

Chapter 7 Anaerobic Reactor Technologies

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. In 1970s, in the Netherlands, Lettinga et al . developed an unpacked high-rate reactor called UASB reactor.

Black water treatment by an upflow anaerobic sludge .

The upflow anaerobic sludge blanket (UASB) reactor is the most widely used anaerobic system in the tropics (Lettinga 2001). Despite the high rates of use, UASB reactor capacity for treating BW has been poorly investigated (Zeeman et al. 2008; De Graaff et al. 2010; Cunha et al. 2018). Those investigations were carried out with similar organic .

Up Flow - Anaerobic Sludge Blanket Reactor (UASB) | IWA .

Up flow anaerobic sludge blanket technology also known as UASB reactor is a form of anaerobic digester which used in wastewater treatment. UASB reactor is a methane-producing digester, which uses an anaerobicprocess and forming a blanket of granular sludge and is processed by the anaerobic .

Performance of an Up-Flow Anaerobic Sludge Blanket .

Up flow anaerobic sludge blanket reactor (UASBR) is proved to be a high rate anaerobic reactor. However, the use of UASBR in treating the effluent from brewery industries deserves much focus, as it is an unsolved problem in over the world. Hence, the present work evaluated the performance of UASB reactor for treating brewery effluent.

Sludge Blanket - an overview | ScienceDirect Topics

1.3.2 Anaerobic Sludge Blanket Reactor. The anaerobic sludge blanket (UASB) reactor has been reported to be used for metal recovery in bench, pilot, and full-scale applications (Kaksonen and Puhakka, 2007; Steed et al., 2000). The UASB enables biomass retention based on the settling characteristics of granular sludge.