Energy-efficient bubble aeration guided by bubble dynamics model: From bubble formation at submerged orifice to oxygen utilization during uprising
文献类型： 外文期刊
作者： Chen, Zhen 1 ; Yu, Jiaao 1 ; Huo, Yang 1 ; Liu, Jiancong 2 ; Xiao, Dan 3 ; He, Lipeng 4 ; Lin, Shanshan 1 ; Fan, Wei 1 ; Huo, Mingxin 1 ;
作者机构： 1.Northeast Normal Univ, Sch Environm, Changchun 130117, Peoples R China
2.Lversheng Chongqing Environm Technol Co Ltd, Chongqing, Peoples R China
3.Jilin Acad Agr Sci, Changchun 130033, Peoples R China
4.Changchun Univ Technol, Sch Mechatron Engn, Changchun 130012, Peoples R China
关键词： Aeration; Bubble formation; Oxygen mass transfer; Oxygen utilization
期刊名称：JOURNAL OF CLEANER PRODUCTION （ 影响因子：11.1； 五年影响因子：11.0 ）
ISSN： 0959-6526
年卷期： 2024 年 454 卷
页码：
收录情况： SCI
摘要： Bubble aeration is a significant consumer of energy in wastewater treatment processes. Optimizing oxygen transfer, from an energy usage perspective, is crucial in the development of clean production techniques and for the stimulation of the circular economy. Although large efforts have been made in enhancing this process, particularly in ameliorating bubble diffusers, a main problem lies in energy wastage due to over -pursuing ultrafine bubble generation. In this study, a dynamic model, that integrated both bubble expansion and detachment at submerged orifices, and consequential oxygen utilization during the uprising, was developed in order to better facilitate energy savings during the control of bubble generation. We demonstrate through calibrated models that bubble formation is governed by many factors including gas flow rate, orifice radius, surface tension, liquid viscosity, and surface wettability. Small bubbles are more prone to form when subjected to conditions of high wettability, small orifice size and low flow rate, since the bubbles are easily detached by the increasing upward forces in these scenarios. The oxygen transfer during the rising process was calculated as a function of bubble size, gas type and water depth. Bubbles with a radius smaller than a threshold value can shrink and collapse while below the water surface and thus provide 100% oxygen utilization. The threshold values of bubble radius are determined to be 150 mu m and 250 mu m at 5 m and 15 m initial water depth, respectively. The parameter set for bubble generation in order to obtain the desired bubble size may then be inversely determined by our bubble formation model, and it ' s considered as optimal aeration strategy to realize precise aeration. With these results, our study highlights the viability of the approach employing the proposed model in order to direct energyefficient bubble generation.
- 相关文献
作者其他论文 更多>>
-
1-(3-Aminopropyl) imidazole (APIm) modified ultrafiltration (UF) membrane for mitigating alginate fouling caused by calcium
作者：Wu, Lei;Liu, Menghan;Ma, Cong;Chen, Yuting;Li, Ming;Yin, Tingting;Fan, Wei
关键词：UF; APIm; Membrane fouling; Sodium alginate; Calcium
-
Transparent exopolymer particles (TEP) research: From the ocean to water treatment
作者：Li, Ming;Jia, Xiang;Fan, Wei;Li, Na;Xue, Honghai;Wu, Lei;Lyu, Chen;Shen, Mengnan;Li, Ming;Li, Ming;Jia, Xiang;Fan, Wei
关键词：TEP; Membrane fouling; Carbon cycle; VOSviewer; CiteSpace
-
Global trends and prospects in research on heavy metal pollution at contaminated sites
作者：Yu, Jia'ao;Chen, Zhen;Gao, Wenhao;He, Shuang;Fan, Wei;Huo, Mingxin;Xiao, Dan;Nugroho, Wahyunanto Agung
关键词：Contaminated site; Heavy metal pollution; Pollution assessment; Bibliometric analysis
-
Yield benefit and soil fertility improved by different fertilizer application placements and supplementary organic manure in Maize ( Zea mays L.)
作者：Yuan, Jing Chao;Liu, Jian Zhao;Fan, Wei;Liang, Yao;Cheng, Song;Zhang, Shui Mei;Zhang, Chang;Ren, Jun;Cai, Hong Guang
关键词：NPK; maize yield; nutrient absorption; pH; soil nutrient
-
Microplastic and Silica Colloid Transport in a Saturated Porous Medium Under Various Flow Directions: the Effect of Gravity
作者：Xiao, Dan;Li, Shiwei;Chen, Zhen;Zou, Shubin;Huo, Mingxin;Zhang, Dongmei;Fan, Wei;Nugroho, Wahyunanto Agung
关键词：Microplastic; Silica; Colloid; Transport; Gravity; Porous medium
-
Vulnerability of mineral-associated soil organic carbon to climate across global drylands
作者：Diaz-Martinez, Paloma;Ochoa, Victoria;Garcia-Gil, Juan C.;Panettieri, Marco;Garcia-Palacios, Pablo;Benavente-Ferraces, Iria;Plaza, Cesar;Maestre, Fernando T.;Moreno-Jimenez, Eduardo;Moreno-Jimenez, Eduardo;Delgado-Baquerizo, Manuel;Eldridge, David J.;Travers, Samantha;Saiz, Hugo;Gross, Nicolas;Le Bagousse-Pinguet, Yoann;Gozalo, Beatriz;Ochoa, Victoria;Guirado, Emilio;Asensio, Sergio;Martinez-Valderrama, Jaime;Garcia-Gomez, Miguel;Valencia, Enrique;Berdugo, Miguel;Teixido, Alberto L.;Martinez-Valderrama, Jaime;Mendoza, Betty J.;Zaccone, Claudio;Garcia-Palacios, Pablo;Fan, Wei;Rey, Ana;Eisenhauer, Nico;Cesarz, Simone;Canessa, Rafaella;Eisenhauer, Nico;Cesarz, Simone;Abedi, Mehdi;Bahalkeh, Khadijeh;Ahumada, Rodrigo J.;Quiroga, R. Emiliano;Alcantara, Julio M.;Amghar, Fateh;Aramayo, Valeria;Bran, Donaldo;Arroyo, Antonio, I;Pueyo, Yolanda;Ben Salem, Farah;Blaum, Niels;Geissler, Katja;Boldgiv, Bazartseren;Bowker, Matthew A.;Sloan, Michael;Bowker, Matthew A.;Branquinho, Cristina;Nunes, Alice;Branquinho, Cristina;Nunes, Alice;Bu, Chongfeng;Ju, Mengchen;Caceres, Yonatan;Moreno, Gerardo;Canessa, Rafaella;Canessa, Rafaella;Liancourt, Pierre;Ruppert, Jan C.;Tielborger, Katja;van den Brink, Liesbeth;Castillo-Monroy, Andrea P.;Donoso, David A.;Castro, Ignacio;Hernandez-Hernandez, Rosa M.;Castro-Quezada, Patricio;Jadan-Maza, Oswaldo;Chibani, Roukaya;Conceicao, Abel A.;Hughes, Frederic M.;Currier, Courtney M.;Darrouzet-Nardi, Anthony;Deak, Balazs;Valko, Orsolya;Dickman, Christopher R.;Wardle, Glenda M.;Dougill, Andrew J.;Duran, Jorge;Rodriguez, Alexandra;Ejtehadi, Hamid;Espinosa, Carlos;Montalvan, Elizabeth Gusman;Fajardo, Alex;Farzam, Mohammad;Farzam, Mohammad;Ferrante, Daniela;Oliva, Gabriel;Ferrante, Daniela;Oliva, Gabriel;Fraser, Lauchlan H.;Stephens, Colton R. A.;Gaitan, Juan J.;Peter, Guadalupe;Gaitan, Juan J.;von Hessberg, Andreas;Jentsch, Anke;Holzel, Norbert;Velbert, Frederike;Huber-Sannwald, Elisabeth;Hughes, Frederic M.;Hughes, Frederic M.;Ju, Mengchen;Kaseke, Kudzai F.;Kindermann, Liana;Linstaedter, Anja;Koopman, Jessica E.;Le Roux, Peter C.;Louw, Michelle A.;Liancourt, Pierre;Linstaedter, Anja;Liu, Jushan;Wang, Deli;Maggs-Kolling, Gillian;Marais, Eugene;Makhalanyane, Thulani P.;Makhalanyane, Thulani P.;Issa, Oumarou Malam;Margerie, Pierre;Mazaneda, Antonio J.;McClaran, Mitchel P.;Messeder, Joao Vitor S.;Messeder, Joao Vitor S.;Mora, Juan P.;Munson, Seth M.;Onatibia, Gaston R.;Yahdjian, Laura;Osborne, Brooke;Peter, Guadalupe;Zeberio, Juan M.;Quiroga, R. Emiliano;Reed, Sasha C.;Reyes, Victor M.;Sala, Osvaldo;Throop, Heather L.;Sala, Osvaldo;Sala, Osvaldo;Salah, Ayman;Sebei, Julius;Solongo, Shijirbaatar;Stavi, Ilan;Thomas, Andrew D.;Throop, Heather L.;Val, James;van den Brink, Liesbeth;Wamiti, Wanyoike;Wang, Lixin;Zaady, Eli;Zaady, Eli;Zhang, Yuanming;Zhou, Xiaobing
关键词：
-
Analysis of the Long Non-Coding and Messenger RNA Expression Profiles in the Skin Tissue of Super Merino and Small-Tailed Han Sheep
作者：Fu, Jiaqi;Zhang, Xinyu;Wang, Dan;Liu, Wenqing;Zhang, Caihong;Wang, Wei;Fan, Wei;Sun, Fuliang;Zhang, Lichun
关键词：super merino sheep; small-tailed han sheep; lncRNA; mRNA; RNA sequencing; immunohistochemistry
