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Effects of design parameters on performance and cost analysis of combined ultraviolet-biofilter systems

Can WANG, Jinying XI, Hongying HU, Insun KANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 588-594 doi: 10.1007/s11783-012-0433-8

Abstract: A conceptual mathematical model was used to evaluate the design parameters of a combined ultraviolet(UV)-biofilter system, and perform a cost analysis.Results showed that the UV light source strength and the gas residence times in the UV system (UVRT)High ratio of UVRT to EBRT improved the removal efficiency, suggesting that the UV system has a greaterHowever, the biofilter operating costs were lower than those of the UV system.

Keywords： volatile organic compounds     ultraviolet (UV) photodegradation     biofilter     modeling     cost analysis    

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Ultraviolet exposure enhanced silicon direct bonding

Guanglan LIAO, Xuekun ZHANG, Xiaohui LIN, Canghai MA, Lei NIE, Tielin SHI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 87-92 doi: 10.1007/s11465-009-0078-x

Abstract: Ultraviolet (UV) exposure, as an additional technique following the traditional wet chemical activationThe effects of UV exposure on silicon wafers’ nano-topography and bonding strength are studied.It is found that the surface roughness of silicon wafers initially decreases and then increases with UVstrength increases sharply then gently with increasing annealing temperature and annealing time using UVUV exposure time, annealing temperature and annealing time remain unchanged.

Keywords： ultraviolet (UV) exposure     silicon direct bonding     bonding strength     reliability    

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Effects of humic acid fractions with different polarities on photodegradation of 2,4-D in aqueous environments

YU Chunyan, QUAN Xie, OU Xiaoxia, CHEN Shuo

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 291-296 doi: 10.1007/s11783-008-0049-1

Abstract: UV-vis absorption and Fourier transform infrared spectroscopy (FTIR) analysis show that the fractionsThe influences of HAs and their fractions on the photolysis were investigated by the photodegradation

Keywords： polarity     photodegradation     different absorption     UV-vis absorption     FTIR    

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Photolysis and photooxidation of typical gaseous VOCs by UV Irradiation: Removal performance and mechanisms

In-Sun Kang, Jinying Xi, Hong-Ying Hu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1032-0

Abstract: Photodegradation by ultraviolet irradiation (UV) is increasingly applied in volatile organic compoundhydrocarbon derivatives, at 150–200 ppm in air and nitrogen gas were treated by a laboratory-scale UVreactor with 185/254 nm irradiation to systematically investigate their removal and conversion by UVThe carbon balance of each VOC during UV irradiation was analyzed based on the VOC, CO and PM concentrationsAlthough the UV technique exhibited a high VOC removal efficiency, its drawbacks, specifically low mineralization

Keywords： VOCs     UV photodegradation     Particulate matters     Ozone    

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Factors influencing the photodegradation of

Bingbing XU, Zhonglin CHEN, Fei QI, Jimin SHEN, Fengchang WU

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 91-97 doi: 10.1007/S11783-009-0013-8

Abstract: In order to provide basic data for practical application,photodegradation experiment of -nitrosodimethylamineNDMA at various initial concentrations selected in this study was almost completely photodegraded by UVDepending on the initial concentration of NDMA, NDMA photodegradation by UV obeyed the pseudo-first-orderDimethylamine, nitrite, and nitrate were detected as the photodegradation products of NDMA.O was found to be the reactive oxygen species present in the NDMA photodegradation process by UV, based

Keywords： N-nitrosodimethylamine (NDMA)     ultraviolet irradiation     degradation kinetic     dimethylamine     photodegradation product    

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Patterned wafer bonding using ultraviolet adhesive

Rui ZHUO, Guanglan LIAO, Wenliang LIU, Lei NIE, Tielin SHI

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 214-218 doi: 10.1007/s11465-011-0130-5

Abstract:

The process of patterned wafer bonding using ultraviolet (UV) adhesive as the intermediate layer wasBy presetting the UV adhesive guide-layer, controlling the thickness of the intermediate layer (1&ndashExperimental results indicate that patterned wafer bonding using UV adhesive is achieved under room temperaturePatterned wafer bonding using UV adhesive will have great potential in the fabrication of microfluidic

Keywords： ultraviolet (UV) adhesive     intermediate layer     patterned wafer bonding    

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Decomposition of aqueous chlorinated contaminants by UV irradiation with H

Eunsung KAN,Chang-Il KOH,Kyunghyuk LEE,Joonwun KANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 429-435 doi: 10.1007/s11783-014-0677-6

Abstract: decomposition rates of carbon tetrachloride (CCl ) and 2,4-dichlorophenol (2,4-DCP) in water by the ultraviolet(UV) light irradiation alone and H O /UV were experimentally investigated.detailed experimental studies have been conducted for examining treatment capacities of the two different ultravioletlight sources (low and medium pressure Hg arc) in H O /UV processes.than the low pressure UV lamp alone.

Keywords： H2O2/ultraviolet (UV) light     advanced oxidation     UV light irradiation     chlorinated    

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Photodegradation of chromophoric dissolved organic matters in the water of Lake Dianchi, China

Yuan ZHANG,Chunming HU,Tao YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 4,   Pages 575-582 doi: 10.1007/s11783-014-0664-y

Abstract: Three groups of experiments under different light conditions: ultraviolet (UV) light, visible light,and dark, were done and variations of fluorescence properties, UV absorbance, and dissolved organic carbon(DOC) concentrations during the experiments were analyzed to study the photodegradation process of CDOMIt was also observed that UV irradiation had greater effect than visible light did.condition, that is, protein-like fluorophore at the low excitation wavelengths is more sensitive to UV

Keywords： chromophoric dissolved organic matter     photodegradation     ultraviolet radiation     dissolved organic carbon    

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Bacterial inactivation, DNA damage, and faster ATP degradation induced by ultraviolet disinfection

Chao Yang, Wenjun Sun, Xiuwei Ao

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1192-6

Abstract: instantly but does eventually after UV exposure. • After medium pressure UV exposure, ATP degraded fasterThe efficacy of ultraviolet (UV) disinfection has been validated in numerous studies by using culture-basedFor low-pressure UV, this rate of decrease was slow, but for medium pressure UV, this rate of decreasewas relatively high when the UV fluence reached 40 mJ/cm2.UV.

Keywords： UV disinfection     DNA damage     qPCR     ATP    

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Effect of the ultraviolet/chlorine process on microbial community structure, typical pathogens, and antibiotic

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 8, doi: 10.1007/s11783-022-1521-z

Abstract:

• UV/chlorine can effectively remove VBNC pathogens, ARGs and MGEs in

Keywords： UV/chlorine process     Pathogen     Antibiotic resistance genes     High-throughput qPCR     Reclaimed water    

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Using mRNA to investigate the effect of low-pressure ultraviolet disinfection on the viability of

Chao Yang, Wenjun Sun, Xiuwei Ao

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1111-x

Abstract:

UV can induce damages on mRNA consistently among different genes.

SOS response was more active after UV treatmentitemcontent>

Programmed cell death was not found to be more active after UV

Keywords： UV disinfection     Viability     mRNA     SOS response     Programmed cell death    

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Impacts of advanced treatment processes on elimination of antibiotic resistance genes in a municipal wastewater treatment plant

Lian Yang, Qinxue Wen, Zhiqiang Chen, Ran Duan, Pan Yang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 3, doi: 10.1007/s11783-019-1116-5

Abstract:

UV disinfection could effectively control the

Keywords： Antibiotic resistance genes (ARGs)     Wastewater treatment plant (WWTP)     Ultraviolet (UV)     Ozonation     Granular    

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Removal of virus aerosols by the combination of filtration and UV-C irradiation

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1627-y

Abstract:

● The removal of virus aerosols by filtration and UV-C irradiation

Keywords： Filtration system     UV-C irradiation     Virus aerosol     Public health     COVID-19    

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Effect of natural aquatic humic substances on the photodegradation of bisphenol A

ZHAN Manjun, YANG Xi, KONG Lingren, YANG Hongshen

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 311-315 doi: 10.1007/s11783-007-0052-y

Abstract: The photodegradation rate of BPA was insensitive to the different initial BPA concentrations and was

Keywords： irradiation     photoproduct     deoxygenated     possible phototransformation     bisphenol    

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and bacteriophage MS2 disinfection by UV, ozone and the combined UV and ozone processes

Jingyun FANG,Huiling LIU,Chii SHANG,Minzhen ZENG,Mengling NI,Wei LIU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 547-552 doi: 10.1007/s11783-013-0620-2

Abstract: The combination of low-dose ozone with ultraviolet (UV) irradiation should be an option to give benefitUV-followed-by-ozone (UV-ozone) and ozone-followed-by-UV (ozone-UV) exposures.In this study, inactivation of and bacteriophage MS2 by UV, ozone, UV/ozone coexposure, and sequentialUV-ozone and ozone-UV exposures was investigated and compared.Little enhancement on inactivation was found after the sequential UV-ozone or ozone-UV exposures.

Keywords： bacteria inactivation     photoreactivation     water disinfection     UV     ozone    

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Title Author Date Type Operation

Effects of design parameters on performance and cost analysis of combined ultraviolet-biofilter systems

Can WANG, Jinying XI, Hongying HU, Insun KANG

Journal Article

Ultraviolet exposure enhanced silicon direct bonding

Guanglan LIAO, Xuekun ZHANG, Xiaohui LIN, Canghai MA, Lei NIE, Tielin SHI,

Journal Article

Effects of humic acid fractions with different polarities on photodegradation of 2,4-D in aqueous environments

YU Chunyan, QUAN Xie, OU Xiaoxia, CHEN Shuo

Journal Article

Photolysis and photooxidation of typical gaseous VOCs by UV Irradiation: Removal performance and mechanisms

In-Sun Kang, Jinying Xi, Hong-Ying Hu

Journal Article

Factors influencing the photodegradation of

Bingbing XU, Zhonglin CHEN, Fei QI, Jimin SHEN, Fengchang WU

Journal Article

Patterned wafer bonding using ultraviolet adhesive

Rui ZHUO, Guanglan LIAO, Wenliang LIU, Lei NIE, Tielin SHI

Journal Article

Decomposition of aqueous chlorinated contaminants by UV irradiation with H

Eunsung KAN,Chang-Il KOH,Kyunghyuk LEE,Joonwun KANG

Journal Article

Photodegradation of chromophoric dissolved organic matters in the water of Lake Dianchi, China

Yuan ZHANG,Chunming HU,Tao YU

Journal Article

Bacterial inactivation, DNA damage, and faster ATP degradation induced by ultraviolet disinfection

Chao Yang, Wenjun Sun, Xiuwei Ao

Journal Article

Effect of the ultraviolet/chlorine process on microbial community structure, typical pathogens, and antibiotic

Journal Article

Using mRNA to investigate the effect of low-pressure ultraviolet disinfection on the viability of

Chao Yang, Wenjun Sun, Xiuwei Ao

Journal Article

Impacts of advanced treatment processes on elimination of antibiotic resistance genes in a municipal wastewater treatment plant

Lian Yang, Qinxue Wen, Zhiqiang Chen, Ran Duan, Pan Yang

Journal Article

Removal of virus aerosols by the combination of filtration and UV-C irradiation

Journal Article

Effect of natural aquatic humic substances on the photodegradation of bisphenol A

ZHAN Manjun, YANG Xi, KONG Lingren, YANG Hongshen

Journal Article

and bacteriophage MS2 disinfection by UV, ozone and the combined UV and ozone processes

Jingyun FANG,Huiling LIU,Chii SHANG,Minzhen ZENG,Mengling NI,Wei LIU

Journal Article