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Page 1
Effects of gas saturation and sparging on sonochemical oxidation activity in open and closed systems, part II: NO(2)(-)/NO(3)(-) generation and a brief critical review.
Son Y, Choi J. Son Y, et al. Ultrason Sonochem. 2023 Jan;92:106250. doi: 10.1016/j.ultsonch.2022.106250. Epub 2022 Nov 28. Ultrason Sonochem. 2023. PMID: 36459904 Free PMC article. Review.
Three gas modes, saturation/closed, saturation/open, and sparging/closed, were applied. N(2):Ar (25:75), N(2):Ar (50:50), and O(2):N(2) (25:75) in the saturation/closed mode generated the three highest values of NO(2)(-) and NO(3)(-). ...The absorption of N(2) from the air …
Three gas modes, saturation/closed, saturation/open, and sparging/closed, were applied. N(2):Ar (25:75), N(2):Ar (50:50), and O(2):N( …
Air sparging remediation of VOCs contaminated low-permeability soil based on pressure gradient control.
Xu L, Zhu H, Zha F, Kang H, Fang L, Liu J, Tan X, Chu C. Xu L, et al. Chemosphere. 2023 Oct;339:139650. doi: 10.1016/j.chemosphere.2023.139650. Epub 2023 Jul 24. Chemosphere. 2023. PMID: 37495056
Air sparging (AS) is deemed unacceptable for remediating VOCs contaminated soil with low-permeability. To improve air flow and contaminant removal in sparging process, an original approach, termed as pressure gradient-enhanced air sparging (PGEAS) approach, i …
Air sparging (AS) is deemed unacceptable for remediating VOCs contaminated soil with low-permeability. To improve air flow and contam …
Aquifer remediation using surfactant-enhanced gas sparging applied to target the contaminant source.
Cho MY, Oh MS, Annable MD, Kim H. Cho MY, et al. J Contam Hydrol. 2022 Jun;248:104002. doi: 10.1016/j.jconhyd.2022.104002. Epub 2022 Mar 24. J Contam Hydrol. 2022. PMID: 35395442
Air and ozone were injected to generate gas sparging. A modified surfactant-enhanced ozone sparging method was also tested by applying additional air venting ports installed in the aquifer above the gas injection zone. ...SCMC application enhanced the performance of …
Air and ozone were injected to generate gas sparging. A modified surfactant-enhanced ozone sparging method was also tested by …
Nitrogen-sparging assisted anoxic biological drinking water treatment system.
Keithley AE, Woodruff P, Williams DJ, Dugan NR, Lytle DA. Keithley AE, et al. AWWA Water Sci. 2023 Oct 18;5(3):1-14. doi: 10.1002/aws2.1359. AWWA Water Sci. 2023. PMID: 38268712 Free PMC article.
An innovative reactor that uses nitrogen gas sparging through a contactor to strip DO was developed and tested in the lab. It reduced influent nitrate from 15 to <1 mg/L as N with nitrite accumulation <1 mg/L as N. ...Gravel, polyvinyl chloride pieces, and no packing …
An innovative reactor that uses nitrogen gas sparging through a contactor to strip DO was developed and tested in the lab. It reduced …
Mathematical modeling of air sparging for subsurface remediation: state of the art.
McCray JE. McCray JE. J Hazard Mater. 2000 Feb 25;72(2-3):237-63. doi: 10.1016/s0304-3894(99)00142-9. J Hazard Mater. 2000. PMID: 10650192 Review.
A review of published mathematical models used to simulate air sparging is provided. Applicability of the models, efforts to test the models using experimental data and contributions of modeling efforts to the practice of air sparging are also discussed. ...Based on …
A review of published mathematical models used to simulate air sparging is provided. Applicability of the models, efforts to test the …
Effects of gas sparging and mechanical mixing on sonochemical oxidation activity.
Choi J, Lee H, Son Y. Choi J, et al. Ultrason Sonochem. 2021 Jan;70:105334. doi: 10.1016/j.ultsonch.2020.105334. Epub 2020 Sep 2. Ultrason Sonochem. 2021. PMID: 32932226 Free PMC article.
The highest sonochemical activity was obtained with sparging at 8 L min(-1) or mixing at 200 rpm, where the standing wave field was significantly deformed by sparging and mixing, respectively. ...Therefore, it was revealed that the sonochemical oxidation activity co …
The highest sonochemical activity was obtained with sparging at 8 L min(-1) or mixing at 200 rpm, where the standing wave field was s …
Enhanced air sparging for groundwater remediation using alginate gel-based removable hydraulic barriers.
Oh MS, Namgung G, Kim H. Oh MS, et al. J Contam Hydrol. 2024 Jan;260:104258. doi: 10.1016/j.jconhyd.2023.104258. Epub 2023 Oct 21. J Contam Hydrol. 2024. PMID: 38064800
The objective of this study was to investigate the effect of a removable physical barrier on the air sparging performance using a lab-scale aquifer model was investigated. The barrier was installed in water-saturated porous media, prior to the air sparging, by injec …
The objective of this study was to investigate the effect of a removable physical barrier on the air sparging performance using a lab …
Effective bioreactor pH control using only sparging gases.
Hoshan L, Jiang R, Moroney J, Bui A, Zhang X, Hang TC, Xu S. Hoshan L, et al. Biotechnol Prog. 2019 Jan;35(1):e2743. doi: 10.1002/btpr.2743. Epub 2018 Nov 30. Biotechnol Prog. 2019. PMID: 30421525
In this study, the feasibility of utilizing control of sparge gas composition as part of the pH control loop was assessed in Chinese hamster ovary (CHO) fed-batch cultures. ...Desired culture pH setpoints were successfully maintained via air sparge feedback control. …
In this study, the feasibility of utilizing control of sparge gas composition as part of the pH control loop was assessed in Chinese …
Effects of gas saturation and sparging on sonochemical oxidation activity in open and closed systems, Part I: H(2)O(2) generation.
Son Y, Seo J. Son Y, et al. Ultrason Sonochem. 2022 Nov;90:106214. doi: 10.1016/j.ultsonch.2022.106214. Epub 2022 Oct 28. Ultrason Sonochem. 2022. PMID: 36327919 Free PMC article.
In this study (Part I), the effects of gas saturation and sparging on the generation of H(2)O(2) were investigated in a 28-kHz sonoreactor system. Four gas modes, saturation/closed, saturation/open, sparging/closed, and sparging/open, were applied to Ar, O(2) …
In this study (Part I), the effects of gas saturation and sparging on the generation of H(2)O(2) were investigated in a 28-kHz sonore …
Remediation characteristics of surfactant-enhanced air sparging (SEAS) technology on volatile organic compounds contaminated soil with low permeability.
Xu L, Yan L, Zha F, Zhu F, Tan X, Kang B, Yang C, Lin Z. Xu L, et al. J Contam Hydrol. 2022 Oct;250:104049. doi: 10.1016/j.jconhyd.2022.104049. Epub 2022 Jul 7. J Contam Hydrol. 2022. PMID: 35863213
The exhausted gaseous contaminant concentration changed slightly when the sparging pressure and surfactant concentration increased at relatively low levels and increased as the sparging pressure and surfactant concentration increased further. ...The discrete remedia …
The exhausted gaseous contaminant concentration changed slightly when the sparging pressure and surfactant concentration increased at …
904 results

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