Relevant bibliographies by topics / Activated sludge-biofilm modeling

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

Academic literature on the topic 'Activated sludge-biofilm modeling'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Activated sludge-biofilm modeling"

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Cramer, Michael, and Jens Tränckner. "Development of Decay in Biofilms under Starvation Conditions—Rethinking of the Biomass Model." Water 12, no. 5 (2020): 1249. http://dx.doi.org/10.3390/w12051249.

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The study investigates the decay of heterotrophic biomass in biofilms under starvation conditions based on measurements of the oxygen uptake rate (OUR). Original incentive was to understand the preservation of active biomass in SBR-trickling filter systems (SBR-TFS), treating event-based occurring, organically polluted stormwater. In comparison with activated sludge systems, the analyzed biofilm carrier of SBR trickling filters showed an astonishing low decay rate of 0.025 d−1, that allows the biocenosis to withstand long periods of starvation. In activated sludge modeling, biomass decay is re
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Boltz, Joshua P., Barth F. Smets, Bruce E. Rittmann, Mark C. M. van Loosdrecht, Eberhard Morgenroth, and Glen T. Daigger. "From biofilm ecology to reactors: a focused review." Water Science and Technology 75, no. 8 (2017): 1753–60. http://dx.doi.org/10.2166/wst.2017.061.

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Biofilms are complex biostructures that appear on all surfaces that are regularly in contact with water. They are structurally complex, dynamic systems with attributes of primordial multicellular organisms and multifaceted ecosystems. The presence of biofilms may have a negative impact on the performance of various systems, but they can also be used beneficially for the treatment of water (defined herein as potable water, municipal and industrial wastewater, fresh/brackish/salt water bodies, groundwater) as well as in water stream-based biological resource recovery systems. This review address
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Wang, Jing, Bing Liu, Feiyong Chen, et al. "Enhancing Mesophilic Anaerobic Digestion of Waste-Activated Sludge through Heat Pretreatment and Kinetic Modeling." Sustainability 15, no. 7 (2023): 5985. http://dx.doi.org/10.3390/su15075985.

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Sewage sludge is a useful raw material for the production of renewable energy due to its stable annual output. In this study, the enhancement of mesophilic anaerobic digestion of sewage sludge through heat pretreatment at 95 °C for 30 min was tested in an anaerobic moving bed biofilm reactor (hAMBBR). The sludge retention time was set at 20, 15, 10, and 5 days during 300 days of operation and compared to a traditional anaerobic continuous stirred tank reactor (AnCSTR) without pretreatment. Results of this research indicate that the digestion ratio of volatile soluble solids in the hAMBBR proce
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Morgenroth, Eberhard, and Peter A. Wilderer. "Modeling of enhanced biological phosphorus removal in a sequencing batch biofilm reactor." Water Science and Technology 37, no. 4-5 (1998): 583–87. http://dx.doi.org/10.2166/wst.1998.0722.

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A biofilm system operated for enhanced biological phosphorus removal is evaluated using a mathematical model. The influence of the influent COD concentration and the biofilm thickness are investigated. In an activated sludge system increasing the influent COD will result in a decrease of the effluent phosphorus concentration. However, in a biofilm system above a certain influent COD concentration not all COD supplied in the influent can be taken up during the anaerobic period. Other heterotrophic bacteria will then dominate the biofilm resulting in an increase of the effluent phosphorus concen
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Picioreanu, C., J. B. Xavier, and M. C. M. van Loosdrecht. "Advances in mathematical modeling of biofilm structure." Biofilms 1, no. 4 (2004): 337–49. http://dx.doi.org/10.1017/s1479050505001572.

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Mathematical modeling of spatial biofilm structure has been in development for the past 10 years, its main goal being to derive the dynamics of biofilm structure from first-principle descriptions of the various physical, chemical and biological processes involved in biofilm formation. Early efforts described development of unrestricted monospecies consortia, often considering diffusion and reaction of a single solute species. Multi-dimensional modeling of biofilms has presently reached a stage where multi-species systems with any number of bacterial and solute species, reactions and arbitrary
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Boltz, Joshua P., Bruce R. Johnson, Glen T. Daigger, Julian Sandino, and Deborah Elenter. "Modeling Integrated Fixed-Film Activated Sludge and Moving-Bed Biofilm Reactor Systems II: Evaluation." Water Environment Research 81, no. 6 (2009): 576–86. http://dx.doi.org/10.2175/106143008x357057.

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Ahimou, Francois, Michael J. Semmens, Paige J. Novak, and Greg Haugstad. "Biofilm Cohesiveness Measurement Using a Novel Atomic Force Microscopy Methodology." Applied and Environmental Microbiology 73, no. 9 (2007): 2897–904. http://dx.doi.org/10.1128/aem.02388-06.

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ABSTRACT Biofilms can be undesirable, as in those covering medical implants, and beneficial, such as when they are used for waste treatment. Because cohesive strength is a primary factor affecting the balance between growth and detachment, its quantification is essential in understanding, predicting, and modeling biofilm development. In this study, we developed a novel atomic force microscopy (AFM) method for reproducibly measuring, in situ, the cohesive energy levels of moist 1-day biofilms. The biofilm was grown from an undefined mixed culture taken from activated sludge. The volume of biofi
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Boltz, Joshua P., Bruce R. Johnson, Glen T. Daigger, Julian Sandino, and Deborah Elenter. "Modeling Integrated Fixed-Film Activated Sludge (IFAS) and Moving Bed Biofilm Reactor (MBBR) Systems: Development and Evaluation." Proceedings of the Water Environment Federation 2008, no. 11 (2008): 5044–68. http://dx.doi.org/10.2175/193864708788804676.

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9

Aybar, M., G. Pizarro, J. P. Boltz, L. Downing, and R. Nerenberg. "Energy-efficient wastewater treatment via the air-based, hybrid membrane biofilm reactor (hybrid MfBR)." Water Science and Technology 69, no. 8 (2014): 1735–41. http://dx.doi.org/10.2166/wst.2014.086.

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We used modeling to predict the energy and cost savings associated with the air-based, hybrid membrane-biofilm reactor (hybrid MfBR). This process is obtained by replacing fine-bubble diffusers in conventional activated sludge with air-supplying, hollow-fiber membrane modules. Evaluated processes included removal of chemical oxygen demand (COD), combined COD and total nitrogen (TN) removal, and hybrid growth (biofilm and suspended). Target concentrations of COD and TN were based on high-stringency water reuse scenarios. Results showed reductions in power requirements as high as 86%. The decrea
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Boltz, Joshua P., Bruce R. Johnson, Glen T. Daigger, and Julian Sandino. "Modeling Integrated Fixed-Film Activated Sludge and Moving-Bed Biofilm Reactor Systems I: Mathematical Treatment and Model Development." Water Environment Research 81, no. 6 (2009): 555–75. http://dx.doi.org/10.2175/106143008x357066.

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Dissertations / Theses on the topic "Activated sludge-biofilm modeling"

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Sriwiriyarat, Tongchai. "Computer Program Development for the Design of IFAS Wastewater Treatment Processes." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/32065.

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The Integrated Film Activated Sludge Process (IFAS) was developed to reduce the cost of additional facilities required to complete year round nitrification in the design of new or retrofit wastewater treatment plants. The purpose of this project was to develop a computer-based mechanistic model, called IFAS, which can be used as a tool by scientists and engineers to optimize their designs and to troubleshoot a full-scale treatment plant. The program also can be employed to assist researchers conducting their studies of IFAS wastewater treatment processes. IFAS enables the steady-state simulati
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Book chapters on the topic "Activated sludge-biofilm modeling"

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Houweling, Dwight, and Glen T. Daigger. "Biofilm Modeling Using Simulation Software." In Intensifying Activated Sludge Using Media-Supported Biofilms. CRC Press, 2019. http://dx.doi.org/10.1201/9780429260278-5.

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Conference papers on the topic "Activated sludge-biofilm modeling"

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Sivalingam, Vasan, Gamunu Samarakoon, and Carlos Dinamarca. "Moving Bed Biofilm Process in Activated Sludge Model 1 for Reject Water Treatment." In The First SIMS EUROSIM Conference on Modelling and Simulation, SIMS EUROSIM 2021, and 62nd International Conference of Scandinavian Simulation Society, SIMS 2021, September 21-23, Virtual Conference, Finland. Linköping University Electronic Press, 2022. http://dx.doi.org/10.3384/ecp21185411.

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You might also be interested in the extended bibliographies on the topic 'Activated sludge-biofilm modeling' for particular source types:
Journal articles
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