Relevant bibliographies by topics / Surface Aerators

Contents

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

Academic literature on the topic 'Surface Aerators'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 September 2023

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Journal articles on the topic "Surface Aerators"

1

Deshmukh, N. A., and J. B. Joshi. "Surface Aerators." Chemical Engineering Research and Design 84, no. 11 (2006): 977–92. http://dx.doi.org/10.1205/cherd05066.

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Janssen, P. M. J., K. Meinema-Linders, and R. P. Niermans. "Surface aeration and a small footprint can be combined." Water Science and Technology 46, no. 4-5 (2002): 309–16. http://dx.doi.org/10.2166/wst.2002.0613.

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In densely populated areas new WWTPs will need to be designed on a relatively small area. This paper describes a deep Carrousel© (oxidation ditch) concept resulting in a “small footprint” for the aeration basin combined with an efficient and flexible oxygen input. To enable surface aeration in a deep Carrousel system, the basin was provided with so-called draft tubes, vertical cylinders located underneath aerators, almost extending down to the bottom. A draft tube enables the aerator to draw sludge/water mixture from the bottom of the tank, thereby ensuring proper oxygenation of the tank conte
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MKRTCHYAN, Tariel Mher, and Evgenia N. SERPOKRILOV. "JUSTIFICATION OF DESIGN OF THE SELF-ROTATING AERATOR FOR GRAVITY NETWORK OF SEWERAGE." Urban construction and architecture 3, no. 4S (2013): 51–52. http://dx.doi.org/10.17673/vestnik.2013.s4.15.

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А new aerators model has been design for urban wastewater networks. Aerator sets in manhole and rotates by wastewaters hydraulic pressure and friction force on the disc surface. As a result it is introduce a self-rotate system that follows by wastewaters aeration.
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Hao, Aimin, Sohei Kobayashi, Dong Xia, et al. "Controlling Eutrophication via Surface Aerators in Irregular-Shaped Urban Ponds." Water 13, no. 23 (2021): 3360. http://dx.doi.org/10.3390/w13233360.

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Surface aerators have often been introduced in urban ponds for esthetics, but their roles in remediating water quality are less understood. Effects of surface aerators on controlling eutrophication were examined in two urban ponds, in which anaerobic odors and cyanobacterial blooms had occurred and several aerators had been installed. In one of the ponds, a dramatic improvement in dissolved oxygen (DO) (from 1.8 to 8.1 mg L−1) and total phosphorus (TP) (from 1.6 to 0.4 mg L−1) was evident based on the comparison before and after the aeration. Although cyano-bloom did not occur, phytoplankton w
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Kells, James A., and C. D. Smith. "Reduction of cavitation on spillways by induced air entrainment." Canadian Journal of Civil Engineering 18, no. 3 (1991): 358–77. http://dx.doi.org/10.1139/l91-047.

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Spillways for medium and high head dams may be exposed to high velocity flows and the associated destructive phenomenon of cavitation. Cavitation may occur at rough spots in the surface of the chute or tunnel, at local discontinuities in the finished surface such as construction joints, and at locations along critical flow profiles having significant deviations from design specifications. This paper addresses, on the basis of a review of the literature, a method for preventing or reducing cavitation damage on spillways through the use of spillway aerators. While the ability of induced or force
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Xing, Pu, Ai Min Zhang, and Zhi Xiong Deng. "The Fluid-Structure Interaction Analysis of the Inverted Umbrella Aerator Curved Blade." Applied Mechanics and Materials 705 (December 2014): 101–5. http://dx.doi.org/10.4028/www.scientific.net/amm.705.101.

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The blades are important components of the inverted umbrella aerators. In this paper, the inverted umbrella aerator blade with curved surface, which was arranged according to the variable helix angle of logarithmic spiral line, was designed and simulated. Through the simulation and calculation of the flow field of oxidation ditch that pushed by the blade, based on the fluid-structure interaction analysis, the reliability of the impeller blades has been studied. All the results showing that the new type inverted umbrella surface aerator blade is reliable.
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Rao, Achanta Ramakrishna, and Bimlesh Kumar. "Resistance Characteristics of Surface Aerators." Journal of Hydraulic Engineering 135, no. 1 (2009): 38–44. http://dx.doi.org/10.1061/(asce)0733-9429(2009)135:1(38).

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Rao, Achanta Ramakrishna, Ajey Kumar Patel, and Bimlesh Kumar. "Power characteristics of surface aerators." Journal of Chemical Technology & Biotechnology 85, no. 6 (2010): 805–13. http://dx.doi.org/10.1002/jctb.2364.

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Qiu, Yong, Chi Zhang, Bing Li, et al. "Optimal Surface Aeration Control in Full-Scale Oxidation Ditches through Energy Consumption Analysis." Water 10, no. 7 (2018): 945. http://dx.doi.org/10.3390/w10070945.

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Oxidation ditches are popularly used in rural areas and decentralized treatment facilities where energy deficiency is of concern. Aeration control technologies are well established for diffusion systems in order to improve energy efficiency, but there are still challenges in their application in oxidation ditches because surface aerators have unique characteristics with respect to oxygen transfer and energy consumption. In this paper, an integral energy model was proposed to include the energy, aeration, and fluidic effects of surface aerators, by which the energy for aeration of each aerator
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Cancino, Beatriz, Pedro Roth, and Manfred Reuß. "Design of high efficiency surface aerators." Aquacultural Engineering 31, no. 1-2 (2004): 83–98. http://dx.doi.org/10.1016/j.aquaeng.2004.03.002.

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Dissertations / Theses on the topic "Surface Aerators"

1

Issa, Hayder Mohammed. "Characterization and improvement of a surface aerator for water treatment." Phd thesis, Toulouse, INPT, 2013. http://oatao.univ-toulouse.fr/10672/1/issa.pdf.

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A new surface aeration system for water and wastewater treatment has been studied. Its uniqueness lies in its ability to operate in two modes: aeration or simply blending (mixing) by just reversing the direction of rotation. An experimental plant has enabled to focus on mass transfer performance and hydrodynamics. The flow pattern and the velocity field measurements inside the agitated tank were performed by both the Laser Doppler Velocimetry (LDV) and the Particle Image Velocimetry (PIV) techniques for the single phase (Mixing) mode and for the two phases (Aeration) mode. The oxygen mass tran
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Kumar, Bimlesh. "Comprehensine Studies Of Surface Aeration Systems." Thesis, 2009. http://etd.iisc.ac.in/handle/2005/677.

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Dissolved oxygen refers to the mass of oxygen that is contained in water. The concentration of dissolved oxygen is an important indicator of the environments water quality. The presence of oxygen in water is desirable therefore it is a positive sign; whereas the absence of oxygen is a sign of severe pollution. An adequate supply of dissolved oxygen is important for waste water treatment processes. Many naturally occurring biological and chemical processes use oxygen, thereby diminishing the dissolved oxygen concentration in the water. The physical process of oxygen transfer or oxygen absorptio
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Kumar, Bimlesh. "Comprehensine Studies Of Surface Aeration Systems." Thesis, 2009. http://hdl.handle.net/2005/677.

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Dissolved oxygen refers to the mass of oxygen that is contained in water. The concentration of dissolved oxygen is an important indicator of the environments water quality. The presence of oxygen in water is desirable therefore it is a positive sign; whereas the absence of oxygen is a sign of severe pollution. An adequate supply of dissolved oxygen is important for waste water treatment processes. Many naturally occurring biological and chemical processes use oxygen, thereby diminishing the dissolved oxygen concentration in the water. The physical process of oxygen transfer or oxygen absorptio
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Patel, Ajey Kumar. "Studies On Surface Aeration In Circular Tanks." Thesis, 2009. https://etd.iisc.ac.in/handle/2005/1105.

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Water is a fundamental need for existence of mankind. Only 0.01 % of total global water is readily available for human consumption as fresh water. The rapid increase in human population and consequent rise in urbanization and industrialization is producing a stress on this meager water resource. Water at the same time is a renewable resource, ie with suitable treatment it can be made re-useable. Aeration is one of the important processes employed in activated sludge process of the biological treatment units of wastewater. In this process the level of dissolved oxygen in the effluent is raise
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Patel, Ajey Kumar. "Studies On Surface Aeration In Circular Tanks." Thesis, 2009. http://hdl.handle.net/2005/1105.

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Water is a fundamental need for existence of mankind. Only 0.01 % of total global water is readily available for human consumption as fresh water. The rapid increase in human population and consequent rise in urbanization and industrialization is producing a stress on this meager water resource. Water at the same time is a renewable resource, ie with suitable treatment it can be made re-useable. Aeration is one of the important processes employed in activated sludge process of the biological treatment units of wastewater. In this process the level of dissolved oxygen in the effluent is raised
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Book chapters on the topic "Surface Aerators"

1

Rao, Achanta Ramakrishna, and Bimlesh Kumar. "Economizing the Energy Consumption in Circular Surface Aerator." In Survival and Sustainability. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-95991-5_43.

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Volkart, P., and P. Rutschmann. "Aerators on spillways." In Air Entrainment in Free-Surface Flows. Routledge, 2018. http://dx.doi.org/10.1201/9781315137049-4.

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M. Waheeb, Omar, Mohanad Mahmood Salman, and Rand Qusay Kadhim. "Study of Change Surface Aerator to Submerged Nonporous Aerator in Biological Pond in an Industrial Wastewater Treatment in Daura Refinery." In Wastewater Treatment [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.104860.

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Daura refinery, with a capacity of 140,000 barrel per stream day as a refining capacity, wastewater discharged from refining and treatment processing units, polluted water as foul water, drainages, oil spills, blowdown of boilers and cooling towers, and many other polluted water sources, aims to remove pollutants and reject clean water to the river; wastewater treatment system takes place in this treatment process. Wastewater treatment system suffers from many problems and specifically biological stage; at this stage, activated sludge with bacteria, should be supplied with oxygen, aeration system done by surface aerators with four surface fans; these fans suffer from high vibration, loss support, and in consequence, lack in oxygen supply to aerobic bacteria less than 4 ppm. The nonporous aerator is suggested as an oxygen source for the biological pool. The pilot plant builds the aim to study the ability to apply the new aeration system at the biological pool, pilot plant build with 1 cubic meter capacity tank and continuous overflow of wastewater of 10 liters.min−1, air injected with the pressure of (0.5–0.75) bar(g), and airflow of (7.6–9.7) liter.min−1 respectively. Oxygen concentration was recorded as (3.4–6.0) ppm; in terms of consumption power, changing the aeration system reduces it to less than 20%.
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Pinto, Nelson L. D. E. S. "Prototype aerator measurements." In Air Entrainment in Free-Surface Flows. Routledge, 2018. http://dx.doi.org/10.1201/9781315137049-5.

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Conference papers on the topic "Surface Aerators"

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García Landa, Andrea Del Milagro, Diego Heli Sebastián Castillo Gálvez, and Luis Enrrique Alva Diaz. "Surface rotor aerator with horizontal axis in industrial wastewater." In 20th LACCEI International Multi-Conference for Engineering, Education and Technology: “Education, Research and Leadership in Post-pandemic Engineering: Resilient, Inclusive and Sustainable Actions”. Latin American and Caribbean Consortium of Engineering Institutions, 2022. http://dx.doi.org/10.18687/laccei2022.1.1.495.

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Xing, Pu, and Binbin Qiu. "The Oxidation Ditch Flow Field Analysis Pushed by the New Type Surface Inverted Umbrella Aerator." In 2013 Third International Conference on Intelligent System Design and Engineering Applications (ISDEA). IEEE, 2013. http://dx.doi.org/10.1109/isdea.2012.352.

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Jun Zhu, Curtis Miller, Chuying Dong, Xiao Wu, Liang Wang, and Saqib mukhtar. "Development of An Aerator Module for Surface Aeration to Control Odor From Liquid Manure Storage Facilities." In 2007 Minneapolis, Minnesota, June 17-20, 2007. American Society of Agricultural and Biological Engineers, 2007. http://dx.doi.org/10.13031/2013.23246.

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Zamankhan, Piroz. "Simulation of Cavitating Water Flow in High Energy Spillways." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-93455.

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The air-water mixture from an artificially aerated spillway flowing down to a canyon may create major erosion and damage to both the spillway’s surface and the environment. In this case, the location of an aerator to prevent cavitation scour and decrease the energy head of the flow, its geometry and the aeration flow rate would be important factors in designing an environmental friendly high energy spillway. In this work, an analysis of the problem based on physical and computational fluid dynamics (CFD) modeling is presented. The numerical modelling is a large-eddy simulation technique (LES)
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