Relevant bibliographies by topics / Batch settling

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Batch settling'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Batch settling"

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van Deventer, Ben B. G., Shane P. Usher, Ashish Kumar, Murray Rudman, and Peter J. Scales. "Aggregate densification and batch settling." Chemical Engineering Journal 171, no. 1 (June 2011): 141–51. http://dx.doi.org/10.1016/j.cej.2011.03.075.

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Aarne Vesilind, P., and Gregary N. Jones. "Channelling in Batch Thickening." Water Science and Technology 28, no. 1 (July 1, 1993): 59–65. http://dx.doi.org/10.2166/wst.1993.0017.

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Channelling, which occurs during the batch thickening of concentrated slurries, allows water to escape the settling slurry at a high rate, thus increasing the interface settling velocity. This research shows that the upper layers of the settling column are progressively diluted and that the channel zone occurs at the interface between the diluted slurry and the slurry in compression. As the solids in the lower sections of the column compress and expel water, this water escapes by means of the channels.
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Lester, Daniel R., Shane P. Usher, and Peter J. Scales. "Estimation of the hindered settling functionR(?) from batch-settling tests." AIChE Journal 51, no. 4 (2005): 1158–68. http://dx.doi.org/10.1002/aic.10333.

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Chu, C. P., S. P. Ju, D. J. Lee, F. M. Tiller, K. K. Mohanty, and Y. C. Chang. "Batch Settling of Flocculated Clay Slurry." Industrial & Engineering Chemistry Research 41, no. 5 (March 2002): 1227–33. http://dx.doi.org/10.1021/ie0103411.

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Nadiv, Corinne, and Raphael Semiat. "Batch Settling of Liquid-Liquid Dispersion." Industrial & Engineering Chemistry Research 34, no. 7 (July 1995): 2427–35. http://dx.doi.org/10.1021/ie00046a026.

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Zheng, Yunsheng, and David M. Bagley. "Numerical Simulation of Batch Settling Process." Journal of Environmental Engineering 125, no. 11 (November 1999): 1007–13. http://dx.doi.org/10.1061/(asce)0733-9372(1999)125:11(1007).

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Concha, F., and M. C. Bustos. "Settling velocities of particulate systems, 6. Kynch sedimentation processes: batch settling." International Journal of Mineral Processing 32, no. 3-4 (September 1991): 193–212. http://dx.doi.org/10.1016/0301-7516(91)90068-t.

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Li, Zhen Liang, and Dai Jun Zhang. "A Model for Characterizing the Process of Activated Sludge Compression Settling." Advanced Materials Research 518-523 (May 2012): 3680–86. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.3680.

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Based on batch settling tests, a model describing the compression settling stage was developed and validated by experimental data. A equation determining the critical point when the compression settling stage commences, and a new velocity function for compression settling process were deduced from the model. It was shown that compression settling velocity, time and sludge concentration of the critical point occurrence depend on the initial sludge concentrations, the initial sludge blanket height and the sludge characteristic. Dividing the entire settling process of activated sludge into the zo
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Bürger, R., and E. M. Tory. "On upper rarefaction waves in batch settling." Powder Technology 108, no. 1 (March 2000): 74–87. http://dx.doi.org/10.1016/s0032-5910(99)00257-0.

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Howells, I., K. A. Landman, A. Panjkov, C. Sirakoff, and L. R. White. "Time-dependent batch settling of flocculated suspensions." Applied Mathematical Modelling 14, no. 2 (February 1990): 77–86. http://dx.doi.org/10.1016/0307-904x(90)90075-g.

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Dissertations / Theses on the topic "Batch settling"

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Kurt, Nilufer, and nilf_k@yahoo com au. "A Study of Channelling Behaviour in Batch Sedimentation." RMIT University. School of Civil and Chemical Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20061220.120258.

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Batch sedimentation is a method that enables us to understand the mechanism of compaction and compression of sedimenting slurry. However, batch settling behaviour is a very complex phenomenon that is not easily described fully by a mathematical model. This causes unrealistically large empirical calculations when the thickener size estimations are required. Channelling, reverse concentration gradients and the initial concentration of the slurry have large effects on batch settling. Existing procedures do not provide clear relationships involving these three significant variables. In this stud
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Anderson, Robert K. "Development of scale factors for clarifier design based on batch settling data." Master's thesis, University of Central Florida, 1989. http://digital.library.ucf.edu/cdm/ref/collection/RTD/id/22218.

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University of Central Florida college of Engineering Thesis<br>Traditionally, batch settling tests have been employed to determine the values of the settling parameters V0 and K of the Vesilind equation which represents activated sludge settling velocity as a function of solids concentration. It remains unresolved how closely batch settling tests describe settling in full-scale clarifiers. An experimental procedure was developed to dtermine scale factors between batch settling and full-scale solids flux curves. An experimental protocol was determined for full-scale clarifier operation, incl
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Wells, Miriam. "The effect of clay addition on the settling ability of activated sludge as a proposed method to control filamentous bulking." Thesis, University of Canterbury. School of Biological Sciences, 2014. http://hdl.handle.net/10092/10279.

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Filamentous bulking is a problem that has long plagued activated sludge (AS) wastewater treatment plants (WWTPs). Much research has looked at its prevention and control but there is still no solution. The sludge microbiological community is very complex and there are many factors that can affect bulking. Clay addition in scaled-down activated sludge systems was investigated at concentrations of 0.4, 2.0 and 5.0 g/L along with sequencing batch reactor (SBR) parameters when run with a synthetic wastewater (SWW). The 5.0g/L concentration exhibited positive results on settling in the form of modif
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Cubas, Suazo Francisco Jose. "Effect of Reactor Feeding Pattern on Performance of an Activated Sludge SBR." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/35311.

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<p> The possible effects of changes in the feeding pattern on activated sludge properties related to bioflocculation have been analyzed in lab scale sequencing batch reactors (SBR) in order to determine if these changes in effluent water quality and settling and dewatering properties are significant, so they can be considered in future studies or if they can be recommended as crucial when operating and designing wastewater treatment plants. The activated sludge process is widely used to treat wastewater from both industrial and municipal sources. Biomass from industrial facilities containing
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Gomes, Fernanda Cavalcante. "Decantação acelerada: alternativa para o tratamento de vazão excedente de esgoto - estudo na ETE Martim de Sá (Caraguatatuba/SP)." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-17082010-101003/.

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Este estudo foi motivado pela necessidade de se tratar o excesso de vazão afluente às estações de tratamento de esgoto, que ocorre em dias de chuvas intensas. A hipótese central deste estudo é a de que a adoção de processo físico-químico para o tratamento de esgoto excedente diluído, pode ser vantajosa em relação ao aumento da capacidade com a ampliação dos sistemas exclusivamente biológicos. A pesquisa foi desenvolvida na ETE Martim de Sá da SABESP, localizada em Caraguatatuba/SP, onde o esgoto é tratado por lodos ativados em bateladas sequenciais. Estudou-se a variação da vazão de esgoto afl
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Flintrop, Clara [Verfasser], Morten [Akademischer Betreuer] Iversen, Helle [Gutachter] Ploug, and Wolfgang [Gutachter] Bach. "From microstructures to macroscale carbon export : influences of marine snow composition on settling velocity and microbial colonization / Clara Flintrop ; Gutachter: Helle Ploug, Wolfgang Bach ; Betreuer: Morten Iversen." Bremen : Staats- und Universitätsbibliothek Bremen, 2019. http://d-nb.info/1199003735/34.

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Rossle, Werner Herbert. "The effects of short-term temperature variations on activated sludge settling." Thesis, 2008. http://hdl.handle.net/2263/29408.

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Settling properties of activated sludge or mixed liquor suspended solids (MLSS) have been studied for more than 75 years at wastewater treatment plants. Temperature, together with MLSS concentration, has been acknowledged as important contributors to MLSS settling variations. Batch MLSS settling tests are performed on a regular basis at most of the plants. The majority of these MLSS settling test reports reflect the complete absence of any form of temperature compensation or even MLSS sample temperature (Ts) recordings. The objective of this study is to evaluate the effects of short-term tempe
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Book chapters on the topic "Batch settling"

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Arouca, F. O., L. C. O. Lopes, and João Jorge Ribeiro Damasceno. "Concentration Profiles and Iso-Concentration Curves for Batch Settling Using the Gamma Rays Attenuation Technique." In Materials Science Forum, 29–34. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-423-5.29.

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Sposito, Garrison. "Soil Adsorption Phenomena." In The Chemistry of Soils. Oxford University Press, 2016. http://dx.doi.org/10.1093/oso/9780190630881.003.0012.

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Adsorption experiments involving soil particles typically are performed in a sequence of three steps: (1) reactio of an adsorptive (ion or molecule) with a soil contacting an aqueous solution of known composition under controlled temperature and applied pressure for a prescribed period of time, (2) separationof the wet soil slurry from the supernatant aqueous solution, and (3) quantitationof the ion or molecule of interest, both in the aqueous solution and in the separated soil slurry along with its entrained soil solution. The reaction step can be performed in either a closed system (batch reactor) or an open system (flow-through reactor), and it can proceed over a time period that is either relatively short (to investigate adsorption kinetics) or very long (to investigate adsorption equilibration). The separation step is similarly open to choice, with centrifugation, filtration, or gravitational settling being conventional methods to achieve separation. The quantitation step, in principle, should be designed not only to determine the moles of adsorbate and unreacted adsorptive, but also to verify whether unwanted side reactions, such as precipitation of the adsorptive or dissolution of the adsorbent, have influenced the experiment. After reaction between an adsorptive i and a soil adsorbent, the moles of i adsorbed per kilogram of dry soil is calculated with the standard equation ni ≡ niT − Mwmi where niT is the total moles of species i per kilogram dry soil in a slurry (batch process) or a soil column (flow-through process), Mw is the gravimetric water content of the slurry or soil column (measured in kilograms water per kilogram dry soil), and mi is the molality (moles per kilogram water) of species i in the supernatant solution (batch process) or effluent solution (flow-through process). Equation 8.1 defines the surface exces, ni, of an ion or molecule adsorptive that has become an adsorbate. Formally, ni is the excess number of moles of i per kilogram soil relative to its molality in the supernatant solution. As mentioned in Section 7.2, this surface excess may be a positive, zero, or negative quantity.
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Harrison, Roger G., Paul W. Todd, Scott R. Rudge, and Demetri P. Petrides. "Sedimentation." In Bioseparations Science and Engineering. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780195391817.003.0008.

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Sedimentation is the movement of particles or macromolecules in an inertial field. Its applications in separation technology are extremely widespread. Extremes of applications range from the settling due to gravity of tons of solid waste and bacteria in wastewater treatment plants to the centrifugation of a few microliters of blood to determine packed blood cell volume (“hematocrit”) in the clinical laboratory. Accelerations range from 1 × g in flocculation tanks to 100,000 × g in ultracentrifuges for measuring the sedimentation rates of macromolecules. In bioprocessing, the most frequent applications of sedimentation include the clarification of broths and lysates, the collection of cells and inclusion bodies, and the separation of fluids having different densities. Unit operations in sedimentation include settling tanks and tubular centrifuges for batch processing, continuous centrifuges such as disk centrifuges, and less frequently used unit operations such as field-flow fractionators and inclined settlers. Bench scale centrifuges that accommodate small samples can be found in most research laboratories and are frequently applied to the processing of bench scale cell cultures and enzyme preparations. Certain high-speed ultracentrifuges are used as analytical tools for the estimation of molecular weights and diffusion coefficients. The chapter begins with a description of the basic principles of sedimentation, followed by methods of characterizing laboratory and larger-scale centrifuges. Two important production centrifuges, the tubular bowl centrifuge and the disk-stack centrifuge, are analyzed in detail to give the basis for scale-up. Ultracentrifuges, important for analytical and preparative work, are then analyzed. The effect of flocculation of particles on sedimentation is presented, and sedimentation of particles at low accelerations is discussed. The chapter concludes with a description of centrifugal elutriation.
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Conference papers on the topic "Batch settling"

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Nwaigwe, Kevin N., Nnamdi V. Ogueke, Clifford Kamalu, and Emmanuel E. Anyanwu. "Design and Construction of a Biodiesel Batch Reactor With Improved Settling Capability." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-40246.

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A work on the design and construction of biodiesel batch reactor with improved settling capability for production of biodiesel from fresh palm oil (FPO) and fresh vegetable oil (FVO) is presented. A centrifuge separator, 41 litres capacity, operating at 1400rpm was incorporated into the integrated reactor. Biodiesel production was done using transesterification method. Two experiments were carried out under different reaction conditions such as time and temperature to determine biodiesel yield. The optimum biodiesel yield was achieved at a reaction time of 56 minutes and reaction temperature o
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Matyáš, Josef, Jaroslav Kloužek, Lubomír Němec, and Miroslav Trochta. "Spinel Settling in HLW Melters." In ASME 2001 8th International Conference on Radioactive Waste Management and Environmental Remediation. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/icem2001-1317.

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Abstract The efficiency of high-level waste (HLW) melters is limited by spinel settling and accumulation on the melter bottom if the waste loading is increased above a certain limit at which spinel crystallizes from the melt. Spinel accumulation interferes with melter operation and shortens melter lifetime. The mathematical modeling of spinel settling in a HLW melter was applied to define the critical level of spinel deposition during the lifetime of the melter and the corresponding increase in waste loading. In this study, spinel settled on the bottom, slant melter walls, and in the output pi
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Kim, J. Y., and J. Sansalone. "Evaluation of Rainfall-Runoff Particulate Metals Removal by Hydrodynamic Separation and Batch Settling Clarifier." In World Environmental and Water Resources Congress 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41114(371)340.

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Pham Van Bang, Damien, and Patrick Brisset. "Non-Intrusive Devices Applied to Sedimentation and Consolidation." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-11017.

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This paper presents two non-intrusive techniques to measure the time evolution of the vertical profile of concentration during batch settling test. The first one is a Magnetic Resonant Imaging (MRI) vertical prototype used on Gironde estuary. The second is an X-ray ‘home-made’ prototype used on Seine estuary. Both are used to observe the sedimentation and the consolidation processes of natural cohesive sediments. They provide the movement of the supernatant/suspension interface and the isoconcentration lines of the process. A space-time based method is proposed to close the governing equation.
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Cho, Yung-Zun, In-Tae Kim, Hee-Chul Yang, Hwan-Seo Park, and Han-Soo Lee. "Separation of Lanthanide Fission Products in a Eutectic Waste Salts Delivered From Pyroprocessing of a Spent Oxide Fuel by Using Lab-Scale Oxidative Precipitation Apparatus." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16127.

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Co-precipitation experiments of lanthanides were carried out using this lab-scale apparatus (4kg-salt/batch). As lanthanides, 8 lanthanide elements (Y, La, Ce, Pr, Nd, Sm, Eu and Gd) were used. By reaction with oxygen, these 8 lanthanide chlorides were converted their oxide (REO2, RE2O3) or oxychloride form. Since these lanthanide oxides or oxychlorides are nearly molten salt insoluble, they all were precipitated by free settling in the bottom of molten salt bed, where about 7–8 hrs precipitation time was requested. It was found that in the conditions of 700 °C - 12 hours sparging time and 5 L
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Belfroid, S. P. C., H. J. C. Korst, P. van Beek, K. Lunde, I. G. Eidsvik, F. Hansen, and B. Olsen. "Singing Mitigation in an Export Riser via Liquid Injection: A Field Case Study." In ASME 2014 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/pvp2014-28533.

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Flexible Risers are prone to the generation of high amplitude tonal noise, i.e. a so-called singing riser. Recently, severe vibrations and high noise levels were encountered on the turret of an FPSO in the Norwegian Sea, resulting in significantly reduced production. The vibrations could be attributed to pulsations generated either by a flexible jumper (connecting topside to turret), the gas lift riser or the gas export riser. Field measurements showed that the most likely source was the 10 inch gas export riser. Due to the vibrations, a reduced production limit was set. A field measurement ca
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Wang, Li, Changchun Wu, Lili Zuo, Yanfei Huang, and Haihong Chen. "Optimization of the Receipt and Delivery Schedules for a Transfer Tank Farm of Products Pipeline Network." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65276.

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Transfer tank farms play an important role in an oil products pipeline network, which receive oil products from upstream pipelines and deliver them to downstream pipelines. The scheduling problem for oil products supply chain is very complicated because of numerous constraints to be considered. The published literatures on schedule optimization of oil products pipeline network usually focus on the batch plans of each pipeline, without consideration on the receipt and delivery schedule of transfer tank farm. In this paper, a mixed-integer linear programming (MILP) model is developed for the sch
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Pillai, Pradeep, Chih-Cheng Lin, Jonathan Brege, Raj Mohan, Edward Derkach, Valerie Lafitte, Bala Gadiyar, Tint Htoo Aung, and Juan-Carlos Santamaria. "Industry First Openhole Alternate Path Gravel Pack Completion in HPHT Environment: Fluid Development and Case History." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206048-ms.

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Abstract For offshore wells requiring sand control, Open Hole Gravel Packing (OHGP) with or without shunted screen technology is a common completion technique. Prior to this paper, there has been no application of shunted screen OHGP in High-Pressure High-Temperature (HPHT) environment due to lack of a viscous fluid availability in high-density divalent brines (&amp;gt; 14.6 lbm/U.S. gal). For the case study, the fluid requirements in terms of density and temperature were 15.4 lbm/U.S. gal and 265°F, respectively. The only brine option at this density was a blend of calcium chloride/bromide an
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Bamberger, Judith Ann, and Perry A. Meyer. "Investigating Using Oscillating Jets for Fluid Mixing." In ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-69037.

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Scaled mixing experiments were conducted to evaluate maintaining mobilized particles in a uniform suspension (the condition of concentration uniformity) using jet pumps to mix the suspension. The study experimentally evaluated uniformity in a 1/12-scale experiment varying the Reynolds number, Froude number, and gravitational settling parameter space. The product of the jet exit velocity and nozzle diameter (U0D0) was used to scale the experimental conditions. The test matrix included a full factorial test between 100% and 50% U0D0 and two half-factorial tests at 75% and 25% U0D0. Evaluating po
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Barre´, Yves, and Vincent Pacary. "Study of the Radioactive Liquid Waste Treatment by Coprecipitation: From Modeling to New Process Designs." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16018.

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The ever increasing pressure to reduce the release of radioactive and other toxic substances into environment requires constant improvement/upgrading of processes and technologies for treatment and conditioning of liquid radioactive wastes. To decontaminate liquid nuclear wastes, the coprecipitation process is the most commonly used in nuclear field because it can be applied to any type of aqueous effluents whatever their composition may be. This process deals with the in situ precipitation of solid particles to selectively remove one or more radioelements. In the nuclear research center of CE
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Reports on the topic "Batch settling"

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Reboul, S., D. Click, and D. Lambert. SLUDGE BATCH 7 (SB7) WASHING DEMONSTRATION TO DETERMINE SULFATE/OXALATE REMOVAL EFFICIENCY AND SETTLING BEHAVIOR. Office of Scientific and Technical Information (OSTI), December 2010. http://dx.doi.org/10.2172/1001772.

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