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Jin Ni, Huimin Shi, Yuansheng Xu and Qunhui Wang
Dye wastewater, as a kind of refractory wastewater (with a ratio of biochemical oxygen demand (BOD) and chemical oxygen demand (COD) of less than 0.3), still needs advanced treatments in order to reach the discharge standard. In this work, the recycling-...
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Lucía Hernández Leal, Hardy Temmink, Grietje Zeeman and Cees J. N. Buisman
Greywater consists of household wastewater excluding toilet discharges. Three systems were compared for the biological treatment of greywater at a similar hydraulic retention time of approximately 12?13 hours. These systems were aerobic treatment in a se...
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Alejandro Regalado-Méndez, Guadalupe Ramos-Hernández, Reyna Natividad, Mario E. Cordero, Luis Zárate, Edson E. Robles-Gómez, Hugo Pérez-Pastenes and Ever Peralta-Reyes
2-Chlorophenol (2-CP) is a dangerous organic contaminant found in wastewater. In this work, 2.5 L of a 2-CP solution (1 mol/m3) was electrochemically treated in a flow-by reactor equipped with two boron-doped diamond electrodes (BDD) under batch recircul...
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Qian Yu and Wim Brilman
Direct Air Capture for microalgae cultivation, horticulture, and solar fuels.
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Rajinikanth Rajagopal, Mahbuboor Rahman Choudhury, Nawrin Anwar, Bernard Goyette and Md. Saifur Rahaman
The up-flow anaerobic sludge blanket (UASB) process has emerged as a promising high-rate anaerobic digestion technology for the treatment of low- to high-strength soluble and complex wastewaters. Sewage, a complex wastewater, contains 30?70% particulate ...
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Traditional plug-flow anaerobic reactors (PFRs) are characterized by lacking a mixing system and operating at high total solid concentrations, which limits their applicability for several kinds of manures. This paper studies the performance of a novel mo...
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Flóra Nagy, Kinga Szabó, Péter Bugovics, Gábor Hornyánszky
Pág. 414 - 424
An efficient and easy-to-perform method was developed for covalent immobilization of lipase from Burkholderia cepacia (Lipase PS) on hollow silica microspheres (M540) by bisepoxide activation. For immobilization, various bisepoxides of different length, ...
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Khalida Bekrentchir, Abdelkader Debab
Pág. 210 - 217
In this work, the mixing performance in a batch torus reactor was investigated using computational fluid dynamics (CFD). To validate the numerical model, the CFD results for the mean bulk velocity and power number were compared with the experimental data...
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Treavor H. Boyer, Cass T. Miller, Philip C. Singer
Pág. 1897 - 1906
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Benjamin Oyegbile, Guven Akdogan and Mohsen Karimi
In this study, an experimentally validated computational model was developed to investigate the hydrodynamics in a rotor-stator vortex agglomeration reactor RVR having a rotating disc at the centre with two shrouded outer plates. A numerical simulation w...
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Isnel Benítez Cortés,Luis Beltrán Ramos Sánchez,Agustín García Rodríguez,Fernando Prieto Montenegro
Pág. 76 - 81
Este trabajo presenta una metodología para determinar las áreas de transferencia de calor de un reactor tambor rotatorio con la presenciade deflectores en su interior. Se evaluaron diferentes flujos de sólidos, entre 3,4 y 7,6 g/s y dos velocidades de ro...
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Isnel Benítez Cortés,Luis Beltrán Ramos Sánchez,Agustín García Rodríguez,Fernando Prieto Montenegro
Pág. 76 - 81
Este trabajo presenta una metodología para determinar las áreas de transferencia de calor de un reactor tambor rotatorio con la presenciade deflectores en su interior. Se evaluaron diferentes flujos de sólidos, entre 3,4 y 7,6 g/s y dos velocidades de ro...
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Nitin Ingole,Mangesh Gulhane
Pág. 327 - 339
Constructed wetlands are systems of artificial wastewater treatment which consists of shallow ponds or channels that have been planted with aquatic plants. The treatment is based on the natural, biological, physical and chemical treatment of wastewater. ...
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Jeong-Gyu Bak, Woochul Hwang, Jinsoo Cho
Pág. 1 - 16
Computational fluid dynamics (CFD) is a popular tool in the water industry for assessing ultraviolet (UV) reactor performance. However, due to the size of open-channel-type UV reactor systems, the CFD model requires significant computational time. Thus, ...
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Yasuhiko H. Mori
For establishing hydrate-based technologies for natural-gas storage/transport, CO2 capture from industrial flue gases, etc., we need appropriate guidelines for the scale-up of hydrate production/processing equipment from laboratory sca...
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Ahtesham Javaid, Costin Sorin Bildea
Pág. 159 - 167
Recycle of un-converted reactants is a common practice in industrial chemical processes. However, the material recycle induces a non-linear behaviour of the plant which often manifests as high sensitivity of the recycle flow rates with respect to disturb...
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Laith S. Sabri, Abbas J. Sultan, Jamal M. Ali, Hasan Shakir Majdi and Muthanna H. Al-Dahhan
Fluidized bed reactors are essential in a wide range of industrial applications, encompassing processes such as Fischer?Tropsch synthesis and catalytic cracking. The optimization of performance and reduction in energy consumption in these reactors necess...
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Moses T. Yilleng, Nancy Artioli, David Rooney and Haresh Manyar
Palladium@mesoporous titania core@shell nanoparticles with uniform and narrow particle size distribution were synthesised using a four component ??water in oil?? microemulsion system. The prepared materials were well characterised using N2 adsorption?des...
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Alon Davidy
Pet-coke (petroleum coke) is identified as a carbon-rich and black-colored solid. Despite the environmental risks posed by the exploitation of pet-coke, it is mostly applied as a boiling and combusting fuel in power generation, and cement production plan...
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Ehsan Askari, Pierre Proulx and Alberto Passalacqua
In order to optimize and design new bubbly flow reactors, it is necessary to predict the bubble behavior and properties with respect to the time and location. In gas-liquid flows, it is easily observed that the bubble sizes may vary widely. The bubble si...
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