Log in

Relevant bibliographies by topics / Ultraviolet treatment

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Ultraviolet treatment'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Ultraviolet treatment.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Ultraviolet treatment"

1

Ferriccioni, Natalia, Ricardo Mateucci, Agustina Zangrando, Susana Santana, and Carmen A. Campos. "Effect of decontamination treatment on the quality of dehydrated thyme, coriander, and mustard." Food Science and Technology International 25, no. 7 (May 22, 2019): 579–87. http://dx.doi.org/10.1177/1082013219850667.

Full text

Abstract:

The objective of this work was to evaluate the effects of different decontamination treatments on the quality of dehydrated thyme, coriander, and mustard. Treatments applied were: (i) ultraviolet radiation treatment irradiation; (ii) steam, (iii) steam–ultraviolet radiation treatment; (iv) humidification–ultraviolet radiation treatment, and (v) steam–humidification–ultraviolet radiation treatment. Their effectiveness to control indigenous aerobic mesophiles and yeasts and molds population was assessed by plate count. The effect of proposed treatments on total polyphenol contents and antioxidant activity was also evaluated. Furthermore, the effect of treatments on spices performance to prevent canola oil oxidation was also analyzed. The use of steam–ultraviolet radiation treatment in aqueous medium was the most effective for decontamination, reducing the aerobic mesophiles and yeasts and molds counts between 1.0 and 2.2 log CFU/g dry spice. This treatment decreased significantly the polyphenol content and the antioxidant capacity of the three spices analyzed. However, in the case of mustard, the residual antioxidant compounds were able to control canola oil oxidation more efficiently than butylated hydroxytoluene. Results suggest that the use of steam–ultraviolet radiation treatment in aqueous medium can be useful in food preservation processes.

APA, Harvard, Vancouver, ISO, and other styles

2

Gupta, Sujata. "Could milk get ultraviolet treatment?" New Scientist 210, no. 2814 (May 2011): 19. http://dx.doi.org/10.1016/s0262-4079(11)61240-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Tran, Mai Thu Thi, and Mohammed Farid. "Ultraviolet treatment of orange juice." Innovative Food Science & Emerging Technologies 5, no. 4 (December 2004): 495–502. http://dx.doi.org/10.1016/j.ifset.2004.08.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Karamova, Arfenya E., Lyudmila F. Znamenskaya, Svetlana I. Svishchenko, Mar'yana B. Zhilova, Maria A. Nefedova, and Anna S. Pugner. "Combination treatment of disseminated granuloma annulare." Vestnik dermatologii i venerologii 96, no. 1 (March 30, 2020): 34–44. http://dx.doi.org/10.25208/vdv549-2020-96-1-34-44.

Full text

Abstract:

Purpose. To present the results of the treatment of disseminated form of granuloma annulare with remote long-wave ultraviolet therapy and low level laser therapy. Material and methods. Two female patients at the age of 50 and 53 years with complaints of generalised eruptions on the skin of the trunk, upper and lower limbs and a histologically confirmed diagnosis were treated using a combination of remote long-wave ultraviolet therapy and low level laser therapy of infrared spectrum. 16 sessions of remote long-wave ultraviolet therapy and 10 sessions of low level laser therapy were conducted directly on the lesions. Considering the multidirectionality of the mechanisms of action of phototherapy and laser therapy, the procedures were carried out on different days or with many hours long intervals. Results. Combined use of the remote long-wave ultraviolet therapy and laser therapy led to a significant improvement by the 21st day of the treatment. No side effects were noticed during the treatment, tolerance of the sessions was good. Conclusion. Combined use of the remote long-wave ultraviolet therapy and low level laser therapy of infrared spectrum is effective in treatment of disseminated form of granuloma annulare.

APA, Harvard, Vancouver, ISO, and other styles

5

Leng, June, and Craig Olson. "Ultraviolet Disinfection for Small Treatment Plants." Proceedings of the Water Environment Federation 2009, no. 1 (January 1, 2009): 689–98. http://dx.doi.org/10.2175/193864709793847753.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Balchev, Ivaylo, Nikolai Minkovski, Krasimir Dimitrov, Maria Shipochka, and Robert Barbucha. "Ultraviolet laser treatment of titanium surface." Journal of Physics: Conference Series 682 (February 9, 2016): 012033. http://dx.doi.org/10.1088/1742-6596/682/1/012033.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Gu, Huang. "Ultraviolet treatment on high performance filaments." Materials & Design 26, no. 1 (February 2005): 47–51. http://dx.doi.org/10.1016/j.matdes.2004.04.009.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Lone, Imtiyaz Ahmad, Sajad Ahmad Sheikh, Reyaz Ahmad Unto, and Nusrat Shaheen. "Strategies in Pterygium Treatment." JMS SKIMS 17, no. 1 (June 24, 2014): 4–5. http://dx.doi.org/10.33883/jms.v17i1.225.

Full text

Abstract:

Pterygium is a conjunctival degenerative process characterized by a sheet of fibrovascular tissue encroaching upon the cornea within the inter-palpabral fissure, almost invariably on the nasal side. Excessive exposure to ultraviolet sunlight is the most common predisposing factor. Ultraviolet light induced damage to limbal stem cell barrier with subsequent conjunctivilization of the cornea is the current accepted etiology. Other agents that give rise to chronic irritation of the conjunctiva such as air pollution, dust and wind have also been found as determining factors [1]. JMS 2014;17(1):4-5

APA, Harvard, Vancouver, ISO, and other styles

9

Batchelor, Jonathan M., Adam Millington, Kim S. Thomas, Perways Akram, Jaskiran Azad, Anthony Bewley, Joanne R. Chalmers, et al. "Home-based narrowband UVB, topical corticosteroid or combination for children and adults with vitiligo: HI-Light Vitiligo three-arm RCT." Health Technology Assessment 24, no. 64 (November 2020): 1–128. http://dx.doi.org/10.3310/hta24640.

Full text

Abstract:

Background Systematic reviews suggest that narrowband ultraviolet B light combined with treatments such as topical corticosteroids may be more effective than monotherapy for vitiligo. Objective To explore the clinical effectiveness and cost-effectiveness of topical corticosteroid monotherapy compared with (1) hand-held narrowband ultraviolet B light monotherapy and (2) hand-held narrowband ultraviolet B light/topical corticosteroid combination treatment for localised vitiligo. Design Pragmatic, three-arm, randomised controlled trial with 9 months of treatment and a 12-month follow-up. Setting Sixteen UK hospitals – participants were recruited from primary and secondary care and the community. Participants Adults and children (aged ≥ 5 years) with active non-segmental vitiligo affecting ≤ 10% of their body area. Interventions Topical corticosteroids [mometasone furoate 0.1% (Elocon®, Merck Sharp & Dohme Corp., Merck & Co., Inc., Whitehouse Station, NJ, USA) plus dummy narrowband ultraviolet B light]; narrowband ultraviolet B light (narrowband ultraviolet B light plus placebo topical corticosteroids); or combination (topical corticosteroids plus narrowband ultraviolet B light). Topical corticosteroids were applied once daily on alternate weeks and narrowband ultraviolet B light was administered every other day in escalating doses, with a dose adjustment for erythema. All treatments were home based. Main outcome measures The primary outcome was self-assessed treatment success for a chosen target patch after 9 months of treatment (‘a lot less noticeable’ or ‘no longer noticeable’ on the Vitiligo Noticeability Scale). Secondary outcomes included blinded assessment of primary outcome and percentage repigmentation, onset and maintenance of treatment response, quality of life, side effects, treatment burden and cost-effectiveness (cost per additional successful treatment). Results In total, 517 participants were randomised (adults, n = 398; and children, n = 119; 52% male; 57% paler skin types I–III, 43% darker skin types IV–VI). At the end of 9 months of treatment, 370 (72%) participants provided primary outcome data. The median percentage of narrowband ultraviolet B light treatment-days (actual/allocated) was 81% for topical corticosteroids, 77% for narrowband ultraviolet B light and 74% for combination groups; and for ointment was 79% for topical corticosteroids, 83% for narrowband ultraviolet B light and 77% for combination. Target patch location was head and neck (31%), hands and feet (32%), and rest of the body (37%). Target patch treatment ‘success’ was 20 out of 119 (17%) for topical corticosteroids, 27 out of 123 (22%) for narrowband ultraviolet B light and 34 out of 128 (27%) for combination. Combination treatment was superior to topical corticosteroids (adjusted risk difference 10.9%, 95% confidence interval 1.0% to 20.9%; p = 0.032; number needed to treat = 10). Narrowband ultraviolet B light was not superior to topical corticosteroids (adjusted risk difference 5.2%, 95% confidence interval –4.4% to 14.9%; p = 0.290; number needed to treat = 19). The secondary outcomes supported the primary analysis. Quality of life did not differ between the groups. Participants who adhered to the interventions for > 75% of the expected treatment protocol were more likely to achieve treatment success. Over 40% of participants had lost treatment response after 1 year with no treatment. Grade 3 or 4 erythema was experienced by 62 participants (12%) (three of whom were using the dummy) and transient skin thinning by 13 participants (2.5%) (two of whom were using the placebo). We observed no serious adverse treatment effects. For combination treatment compared with topical corticosteroids, the unadjusted incremental cost-effectiveness ratio was £2328.56 (adjusted £1932) per additional successful treatment (from an NHS perspective). Limitations Relatively high loss to follow-up limits the interpretation of the trial findings, especially during the post-intervention follow-up phase. Conclusion Hand-held narrowband ultraviolet B light plus topical corticosteroid combination treatment is superior to topical corticosteroids alone for treatment of localised vitiligo. Combination treatment was relatively safe and well tolerated, but was effective in around one-quarter of participants only. Whether or not combination treatment is cost-effective depends on how much decision-makers are willing to pay for the benefits observed. Future work Development and testing of new vitiligo treatments with a greater treatment response and longer-lasting effects are needed. Trial registration Current Controlled Trials ISRCTN17160087. Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 64. See the NIHR Journals Library website for further project information.

APA, Harvard, Vancouver, ISO, and other styles

10

Jin, Xin, Zi Fu Li, Xin Zhao, Lan Lan Xie, and Ting Ting Wang. "Effect of Ultrasound Pre-Treatment on Ultraviolet Disinfection in Controlling Bacterial Photoreactivation." Advanced Materials Research 347-353 (October 2011): 2369–74. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2369.

Full text

Abstract:

The main objective of the study is to explore how ultrasonic work with ultraviolet, in an attempt to find out the synergistic effect in controlling the phenomenon of microbial photoreactivation, as well as to analyse the feasibility of synergistic disinfection and related theories. Two different frequencies of ultrasonic transducers (28/40kHz)were used in combination with ultraviolet for secondary effluent disinfection. By controlling the process parameters that may contribute to the efficiency of synergistic disinfection, such as different reaction time, respective ultrasonic and ultraviolet dose. The results show that the synergistic disinfection of ultrasonic and ultraviolet can inhibit such a phenomenon, while maintaining continuous disinfection ability of ultraviolet. Ultrasonic has great potential in enhancing continuous sterilization abilities of ultraviolet. Synergistic disinfection has great advantages compared with other disinfection technologies and has a promising prospect in future use.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Ultraviolet treatment"

1

Holloway, Willie D. "Ultraviolet tunnel treatment as applied to table grapes /." Available to subscribers only, 2006. http://proquest.umi.com/pqdweb?did=1136079411&sid=1&Fmt=2&clientId=1509&RQT=309&VName=PQD.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Cilliers, Frans Pieter. "A biochemical study of the effect of ultraviolet treatment on bovine milk and Cheddar cheese." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97803.

Full text

Abstract:

Thesis (PhD)--Stellenbosch University, 2015.
ENGLISH ABSTRACT: This study describes: 1. The evaluation of a novel, patented thin-film, turbulent-flow Ultravioletdisinfection system as an alternative processing method to thermal pasteurisationfor the disinfection of bovine milk. 2. The microbial, biochemical and sensory characterization of bovine milk treated by heat and Ultraviolet light and then used for the commercial production of Cheddarcheese. 3. The microbial, biochemical and sensory characterization of commercial Cheddarcheese produced from bovine milk treated by heat and Ultraviolet light.
AFRIKAANSE OPSOMMING: Hierdie studie beskryf: 1. Die evaluasie van ‘n unieke, gepatenteerde dun-film, turbulente vloeiUltravioletsisteem as ‘n alternatief vir termiese pasteurisasie vir die behandeling van beesmelk. 2. Die mikrobiologiese-, biochemiese- en sensoriese karakterisasie van beesmelkbehandel met hitte en Ultravioletlig gebruik vir kommersiële produksie van Cheddar kaas. 3. Die mikrobiologiese-, biochemiese- en sensoriese karakterisasie van kommersiëleCheddarkaas vervaardig van beesmelk wat behandel is met hitte en Ultravioletlig.

APA, Harvard, Vancouver, ISO, and other styles

3

Puga, Gil Ursinio. "Ultraviolet Disinfection Pilot Study at the Fargo Wastewater Treatment Plant." Thesis, North Dakota State University, 2017. https://hdl.handle.net/10365/28690.

Full text

Abstract:

A pilot study was carried out at the Fargo wastewater treatment plant to determine the impacts that flow rate, water quality, and system fouling may have on the efficiency of UV disinfection. A second-order model successfully explained the results obtained with the collimated beam. The second-order model was used to study the impact of water quality and initial microorganism concentration on E. coli inactivation rates. Fouling material was mostly made of precipitated metal salts and its impact on UV intensity reduction was explained with the application of the Beer-Lambert law. E. coli inactivation in the pilot unit was found to be dependent on UVT, flow rate, and UV intensity. A first-order plug-flow model successfully explained the inactivation data obtained in the pilot unit. No significant seasonal water quality changes that may affect system operation were identified. However, UVT changes caused by storm events had short-term adverse impacts on system performance.

APA, Harvard, Vancouver, ISO, and other styles

4

Mayor-Smith, Ian. "Polychromatic fluence : calculation and application in ultraviolet reactors for water treatment." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/44040.

Full text

Abstract:

IIn recent decades the application of UV disinfection technology in water treatment has rapidly increased on a global scale, however important uncertainties remain regarding; the methods to achieve consistent and accurate measurement of polychromatic UV output, the fluence-response of microorganisms to UV wavelengths over the entire polychromatic lamp output range, and the optimal lamp conditions and compositions to optimise polychromatic UV disinfection performance. This research aimed to address each of these areas of uncertainty. First, limitations in the existing methods that are used for lamp output measurement were identified and quantified in terms of their potential to cause significant errors in polychromatic UV fluence calculation; solutions are proposed to overcome these limitations in future polychromatic fluence measurements. Next, a novel experimental apparatus was constructed, achieving the necessary spectral requirements to produce a high resolution action spectra for waterborne microorganisms over the 200-300 nm wavelength range. Application of this experimental setup to the comparison of the fluence-response of T1 and T1UV phage, common organisms used in UV reactor validation, identified important differences in UV sensitivity dependent on host selection, and high resolution action spectra were then produced for T1UV with two hosts over the full polychromatic UV range for the first time. Also, new viral surrogates were identified using a theoretical genomic model to predict their UV sensitivities, two of which were identified as having the potential to extend the upper UV fluence validation test limits. Finally, the production of a novel high pressure plasma discharge polychromatic lamp was achieved without the use of mercury, showing considerable potential for future applications.

APA, Harvard, Vancouver, ISO, and other styles

5

Zeng, Minzhen. "Investigations of operating conditions to improve the UV transmittance in chemically enhanced primary treatment /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?EVNG%202009%20ZENG.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Komvuschara, Kanyarat. "UV disinfection in comparison with other small scale disinfection technologies for the treatment of domestic greywater." Thesis, University of Hertfordshire, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.247322.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Mfa-Mezui, Antoine Aime. "The effect of ultraviolet-C treatment on the biochemical composition of beer." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20365.

Full text

Abstract:

Thesis (PhD)--Stellenbosch University, 2012.
ENGLISH ABSTRACT: This study describes: · Development of analytical tools to investigate the light struck flavour (LSF) in beer by Gas chromatography mass spectrometry (GCMS) and by liquid chromatography mass spectrometry/mass spectrometry (LCMS/MS). Development of a high performance liquid chromatography (HPLC) method to analyse carbohydrates in beer. · The efficiency a pilot scale ultraviolet (UV-C) system at 254 nm to inactivate spoilage microorganisms spiked in commercial beer. Bacteria test were Lactobacillus brevis, Acetobacter pasteurianus and Saccharomyces cerevisiae · A pilot scale UV treatment of commercial and non-commercial lager beers at UV dosage of 1000 J/L. Following the UV treatment, the correlation between chemical analyses and sensory tests conducted by consumers’ tasters were investigated. · A pilot scale UV treatment of non-commercial beer brewed with reduced hops iso-α-acids (tetrahydro-iso-α-acids) at UV dosage of 1000 J/L. Sensory changes and chemical properties were investigated. · The development and optimisation of an UV light emitting diodes (UV-LED) bench scale apparatus. Chemical and microbiological tests were conducted to investigate the effect of UV-LEDs on beer at 250 nm and 275 nm wavelengths.
AFRIKAANSE OPSOMMING: Hierdie studie beskryf: · Die ontwikkeling van analitiese toerusting om die invloed van lig op die smaakontwikkeling in bier te bestudeer m.b.v gaschromatografie massa spektrometrie (GCMS) en vloeistofchromatografie massa spektrometrie/massa spektrometrie, asook die ontwikkeling van ‘n hoë druk vloeistofchromatografiese metode vir die analise van koolhidrate in bier. · Die doeltreffendheid van ‘n toetsskaal ultraviolet (UV-C) sisteem om die nadelige mikroorganismes waarmee die bier geïnnokuleer was, by 254 nm te inaktiveer.. Toetse is uitgevoer met die volgende bakterieë, Lactobacillus brevis, Acetobacter pasteuriants en Saccharomyces cerevisiae. · ‘n Toetsskaal UV behandeling van kommersiële en nie-kommersiële lager biere by ‘n UV dosering van 1000 J/L. Na UV behandeling is die verwantskap tussen chemiese analises en ‘n reeks sensoriese toetse deur vebruikers proeërs ondersoek.. · ‘n Toetsskaal UV behandeling van ‘n nie-kommersiële bier gebrou met verlaagde hops-iso-α-sure (tetrahidro-iso-α -sure) by UV dosering van 1000 J/L. Sensoriese veranderinge asook chemiese eienskappe is ondersoek. · Die ontwikkeling en optimalisering van ‘n UV-lig emissie diodes bankskaal apparaat. Chemiese en mikrobiologiese toetse is uitgevoer om die effek van UV lig op bier by 250 nm en 275 nm te ondersoek.

APA, Harvard, Vancouver, ISO, and other styles

8

Primm, Aaron N. "Immunosuppression, inflammation, and skin cancer will eczema treatment enhance ultraviolet light-induced skin cancer? /." Connect to resource, 2006. http://hdl.handle.net/1811/6433.

Full text

Abstract:

Thesis (Honors)--Ohio State University, 2006.
Title from first page of PDF file. Document formatted into pages: contains 45 p.; also includes graphics. Includes bibliographical references (p. 41-45). Available online via Ohio State University's Knowledge Bank.

APA, Harvard, Vancouver, ISO, and other styles

9

Bazri, Mohammad Mahdi. "Assimilable organic carbon formation during ultraviolet-hydrogen peroxide advanced oxidation treatment of surface water." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/30062.

Full text

Abstract:

Practice of UV/H₂O₂ advanced oxidation treatment has emerged as viable alternative for removing micro-pollutants and other organic contaminants from surface water. However, presence of natural organic matter (NOM) in water is problematic and hinders the efficacy of the treatment process. Indeed, NOM can undergo significant partial oxidation leading to generation of smaller more easily assimilable organic molecules (i.e., AOC). Earlier studies have found AOC as the potential cause of bacterial regrowth and other water health concerns thereof within the distribution system. Nonetheless, impact of UV/H₂O₂ process on biostability of downstream water has not gained much attention. However, a method recently developed by Hammes and Egli (2005) opened the opportunity for more accurate and relatively rapid quantification of the AOC. The main focus of this research was to modify and evaluate the protocol of Hammes and Egli (2005) for quantifying the biostability of water before and after UV/H₂O₂ process. More importantly, this research aimed to contribute substantially to the current understanding of easily assimilable organic molecules formation during UV/H₂O₂ treatment. As a result, different characterization techniques (e.g., HPSEC, UV₂₅₄, and TOC) were utilized to monitor transformation of NOM and to study the relationships among different NOM characteristics (e.g., molecular size distribution, UV₂₅₄, and AOC). Considering the concerns associated with NOM (especially when oxidation is applied in the treatment train), elimination of NOM ahead of the oxidation process can potentially increase the UV/H₂O₂ treatment efficacy as well as the finished water quality. Moreover, as the regulations become more stringent, many utilities hope to comply with them by retrofitting existing facilities and avoiding the construction of new ones. Thus, this research also focused to investigate the impact of a pre-treatment process such as coagulation to eliminate NOM prior to UV/H₂O₂ treatment. Using coagulation as pretreatment ahead of UV/H₂O₂ will be potentially of interest for those utilities that are currently applying coagulation and hope to comply with new regulations by minimum capital investment. More importantly, this would be beneficial because of the need to improve process efficacy and also final water quality and the reduced formation of disinfection by-products (DBPs) within the distribution system.

APA, Harvard, Vancouver, ISO, and other styles

10

Simons, Richard Mark. "Developments in fluence rate modelling for ultraviolet light emitting diode based water treatment reactors." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/45351.

Full text

Abstract:

Ultraviolet-C light emitting diodes (UV-C LEDs) are a promising technology for water disinfection. Over the last decade UV-C LEDs have shown dramatic improvements in output power, efficiency, lifetime, and cost. The low-voltage power supply and effective point source geometry of LED light sources allows for new applications and designs. Mercury gas discharge lamps have been used in UV disinfection for several decades, and as a result the industry has developed around the limited specifications of these lamps, such as their size and shape, high power requirements, and mercury content. The increased design freedom offered by LED sources is expected to revolutionise the UV disinfection industry. A model for the optical (fluence rate) distribution within a UV photoreactor was developed to match the freedoms afforded by the use of LED sources. The model development focused on design flexibility with regard to the shape of the reactor body to allow for the accurate modelling of unusual designs. Particular attention was paid to the modelling of internal reflections within the reactor. A Monte Carlo method was selected, where general solutions may be implemented to specific conditions within an arbitrary reactor design. The model focussed on the effects of optical design and did not include fluid dynamics simulations. A series of batch reactors, from 100 – 7500 mL in volume, were modelled for a range of internal reflectivity conditions, from wholly absorptive to specular or diffuse reflectivity. The model produced a 3D representation of the fluence rate distribution within each reactor; this distribution could be evaluated qualitatively to inform future reactor designs. The specific required inactivation energy (SRIE) was defined to allow for the quantitative comparison of different reactors. It was determined that the reactor designs with the highest efficacy have diffusely reflective internal surfaces: the scattering of radiation by diffuse surfaces increases the fluence rate uniformity, which is important for efficient disinfection. The parameter space available for investigation is vast; it was therefore not possible to find a globally optimised solution. However, variation across three parameters showed a broad range of near-optimum designs which resulted in a comparable disinfection performance. This suggests that relative improvements that would result from a global optimisation may be small. A cylindrical reactor of internal depth 90 mm and diameter 119 mm, with Lambertian diffusely reflective internal surface, illuminated by a single LED source (of arbitrary optical power) could achieve an SRIE of 6.56 mJ mL-1 for a treatment water of 90 % transmittance. For an LED source of 100 mW and peak emission 254 nm, this corresponds to a treatment time of 66 s for the 1000 mL volume of the proposed reactor, under a static batch treatment regime. This predicted performance of this device is suitable for application in home-scale point of use water disinfection.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Books on the topic "Ultraviolet treatment"

1

A, Hulsey Robert, AWWA Research Foundation, Massachusetts Water Resources Authority, Concord (Mass.). Public Works., and Southern Nevada Water Authority, eds. Evaluation of ozone and ultraviolet light. Denver, Colo: Awwa Research Foundation, 2005.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

E, Cotton Christine, ed. The ultraviolet disinfection handbook. Denver, Colo: American Water Works Association, 2008.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

3

Rochelle, Paul A. Challenge organisms for inactivation of viruses by ultraviolet treatment. Denver, Colo: Water Research Foundation, 2010.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

4

Jeannie, Darby, and Water Environment Research Foundation, eds. The effect of upstream treatment processes on UV disinfection performance. Alexandria, VA: Water Environment Research Foundation, 1999.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

5

Wright, Harold. Design and performance guidelines for UV sensor systems. Denver, Colorado]: Water Research Foundation, 2009.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

6

Ray, Cantwell, AWWA Research Foundation, and East Bay Municipal Utility District (Calif.), eds. UV disinfection at the East Bay Municipal Utility District. Denver, CO: Awwa Research Foundation, 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

7

Association, International Ultraviolet, ed. Ultraviolet disinfection for wastewater -- low-dose application guidance for secondary and tertiary discharges. Alexandria, Va: Water Environment Federation, 2015.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

8

David, Gaithuma, Heath Mark, Schulz Chris, Bogan Travis, and Water Research Foundation, eds. UV disinfection knowledge base. Denver, CO: Water Research Foundation, 2012.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

9

Ray, Cantwell, AWWA Research Foundation, and East Bay Municipal Utility District (Calif.), eds. UV disinfection at the East Bay Municipal Utility District. Denver, CO: Awwa Research Foundation, 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

10

Ray, Cantwell, AWWA Research Foundation, and East Bay Municipal Utility District (Calif.), eds. UV disinfection at the East Bay Municipal Utility District. Denver, CO: Awwa Research Foundation, 2006.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

Book chapters on the topic "Ultraviolet treatment"

1

Azfar, Rahat S., and Abby S. Van Voorhees. "Ultraviolet and laser therapy." In Treatment of Psoriasis, 71–101. Basel: Birkhäuser Basel, 2008. http://dx.doi.org/10.1007/978-3-7643-7724-3_6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Chen, J. Paul, Lei Yang, Lawrence K. Wang, and Beiping Zhang. "Ultraviolet Radiation for Disinfection." In Advanced Physicochemical Treatment Processes, 317–66. Totowa, NJ: Humana Press, 2006. http://dx.doi.org/10.1007/978-1-59745-029-4_10.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Zaidi, Zohra, Khalid Hussain, and Simi Sudhakaran. "Diseases Due to Ultraviolet Radiation." In Treatment of Skin Diseases, 171–84. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89581-9_11.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Chakraborty, Snehasis, and Rishab Dhar. "Ultraviolet and Pulsed Light Treatment." In Fundamentals of Non-Thermal Processes for Food Preservation, 65–84. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003199809-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Ortega-Rivas, Enrique. "Electromagnetic Radiation: Ultraviolet Energy Treatment." In Food Engineering Series, 217–29. Boston, MA: Springer US, 2012. http://dx.doi.org/10.1007/978-1-4614-2038-5_9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Gayas, Bazilla, Beena Munaza, and Gagandeep Kaur Sidhu. "Ultraviolet Light Treatment of Fresh Fruits and Vegetables." In Processing of Fruits and Vegetables, 83–100. Series statement: Innovations in agricultural and biological engineering: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429505775-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Koo, John, and Mio Nakamura. "Ultraviolet B Phototherapy for the Treatment of Moderate to Severe Psoriasis." In Clinical Cases in Phototherapy, 1–12. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-51599-1_1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Bagchi, Sebanti, Gayaram Bhaumik, and Sanghamitra Raha. "Thrombin releases calcium from internal stores of ultraviolet C-treated V79 fibroblasts independent of phosphatidylinositol bisphosphate hydrolysis: Role of oxidative stress." In Stress Adaptation, Prophylaxis and Treatment, 23–30. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-5097-6_3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Zhang, Lihong, and Xuemei Li. "Exogenous Treatment with Salicylic Acid Attenuates Ultraviolet-B Radiation Stress in Soybean Seedlings." In Advances in Intelligent and Soft Computing, 889–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-27537-1_105.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Witkin, Evelyn M., and Egbert L. Farquharson. "Enhancement and Diminution of Ultraviolet-Light-Initiated Mutagenesis by Post-Treatment with Caffeine in Escherichia coli." In Novartis Foundation Symposia, 36–49. Chichester, UK: John Wiley & Sons, Ltd., 2008. http://dx.doi.org/10.1002/9780470719718.ch4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Ultraviolet treatment"

1

McDonald, Ken, Tom Clevenger, Randy Curry, and Jeffry Golden. "Ultraviolet Light Technologies for Water Treatment." In National Conference on Environmental and Pipeline Engineering. Reston, VA: American Society of Civil Engineers, 2000. http://dx.doi.org/10.1061/40507(282)34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Knight, Gordon. "Frontiers of Eco-Efficient Ultraviolet Water Treatment Technologies." In CLEO: Applications and Technology. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/cleo_at.2014.af1p.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Sarnet, Thierry, and Michel L. Autric. "Surface treatment of metallic alloys by ultraviolet laser." In Photonics West '96, edited by Robert C. Sze. SPIE, 1996. http://dx.doi.org/10.1117/12.236879.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Knight, Gordon. "Water and Air Treatment Using Ultraviolet Light Sources." In CLEO: Applications and Technology. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/cleo_at.2011.atud1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Mattson, Eric, Sara M. Rupich, Yasiel Cabrera, and Yves J. Chabal. "Role of excess ligand and effect of thermal treatment in hybrid inorganic-organic EUV resists." In Extreme Ultraviolet (EUV) Lithography IX, edited by Nelson M. Felix and Kenneth A. Goldberg. SPIE, 2018. http://dx.doi.org/10.1117/12.2300064.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Oh, T. G., T. Kim, J. H. Ma, S. J. Park, and J. G. Eden. "Flexible and transparent microplasma devices for ultraviolet medical treatment." In 2011 IEEE 38th International Conference on Plasma Sciences (ICOPS). IEEE, 2011. http://dx.doi.org/10.1109/plasma.2011.5993132.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Xiuyan Yang, Jacek A Koziel, Tim Cutler, Hans van Leeuwen, Shicheng Zhang, Steven J Hoff, William Jenks, and Jeffrey Zimmerman. "Treatment of Livestock Odor and Pathogens with Ultraviolet Light." In 2008 Providence, Rhode Island, June 29 - July 2, 2008. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2008. http://dx.doi.org/10.13031/2013.25196.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Taki, Y., Y. Morita, S. Nishimura, A. Hirata, T. Koga, and E. Nakamachi. "Development of Surface Treatment Technique With Photolytic Macromolecule Including RGDS Peptide." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66466.

Full text

Abstract:

Arg-Gly-Asp-Ser (RGDS) coating is one of effective methods to improve the cell adhesive property of the scaffold surface. However, it is difficult to regulate the RGDS quantity and distribution, and to visualize RGDS distribution. The purpose of this study was to develop a surface treatment technique that the RGDS quantity can be regulated with the ultraviolet rays irradiation and the RGDS distribution can be visualized with the fluorescence. P(MMA-g-ANP-RGDS) and P(HEMA-g-ANP-RGDS) were respectively synthesized by radical copolymerization of methylmethacrylate (MMA) and 2-hydroxyethylmethacrylate (HEMA) with peptide-macromonomer containing photo-labile linker (3-amino-3-(2-nitrophenyl)propionic acid (ANP)) and RGDS. Each polymer film was produced by using spin-coater, and then ultraviolet rays was irradiated to the each film through the glass mask with three different ultraviolet rays transmissivity of 0 %, 30 % and 60 %. In both polymer films, the RGDS quantity can be regulated by ultraviolet rays irradiation, and the luminance decreased same as the RGDS quantity. Adherent osteoblast-like cells were not observed on P(HEMA-g-ANP-RGDS) film, but the number of adherent osteoblast-like cells was increased with increasing the RGDS quantity on the P(MMA-g-ANP-RGDS) film. In conclusion, we accomplished to develop the surface treatment technique with P(MMA-g-ANP-RGDS) to regulate and visualize the RGDS quantity and distribution.

APA, Harvard, Vancouver, ISO, and other styles

9

Prochorov, A. M., Genadi P. Kuz'min, A. V. Kisletsov, Valery P. Zakharov, and V. G. Dobkin. "Ultraviolet laser Al'mitsin-2 in treatment of fiber-cavernous lung turberculosis." In Selected Papers from Seventh Internation Conference on Advanced Laser Technologies (ALT'98): Laser Methods in Medicine and Biology, edited by Alexander M. Prokhorov, Vladimir I. Pustovoy, and Genadi P. Kuz'min. SPIE, 1999. http://dx.doi.org/10.1117/12.353125.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Ilalova, Guzel, Ruslan Safin, Shamil Mukhametzyanov, Raliya Khasanshina, and Natalia Kraysman. "ULTRAVIOLET TREATMENT FOR IMPROVING WOOD FILLER PHYSICAL PROPERTIES IN COMPOSITE PRODUCTION." In 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020. STEF92 Technology, 2020. http://dx.doi.org/10.5593/sgem2020/6.1/s26.060.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Ultraviolet treatment"

1

Judeikis, Henry, and Melvin Hill. Treatment of Organic Hazardous Wastes with Ozone and Ultraviolet Radiation. Fort Belvoir, VA: Defense Technical Information Center, July 1991. http://dx.doi.org/10.21236/ada252799.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Hoppes, W., and S. Oster. Water Treatment Using Advanced Ultraviolet Light Sources Final Report CRADA No. TC02089.0. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1390006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Schneider, J., M. Wilkey, R. Peters, N. Tomczyk, J. Friedlund, P. Farber, B. Mass, and W. Haag. Demonstration and evaluation of the pulsed ultraviolet-irradiation gas-treatment system, Savannah River Site. Office of Scientific and Technical Information (OSTI), October 1994. http://dx.doi.org/10.2172/10104333.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Panchal, C. B., P. K. Takahashi, and W. Avery. Biofouling control using ultrasonic and ultraviolet treatments. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/453434.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Crouch, Rebecca, Jared Smith, Bobbi Stromer, Christian Hubley, Samuel Beal, Guilherme Lotufo, Afrachanna Butler, et al. Preparative, extraction, and analytical methods for simultaneous determination of legacy and insensitive munition (IM) constituents in aqueous, soil or sediment, and tissue matrices. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41480.

Full text

Abstract:

No standard method exists for determining levels of insensitive munition (IM) compounds in environmental matrices. This project resulted in new methods of extraction, analytical separation and quantitation of 17 legacy and 7 IM compounds, daughter products of IM, and other munition compounds absent from USEPA Method 8330B. Extraction methods were developed for aqueous (direct-injection and solid-phase extraction [SPE]), soil, sediment, and tissue samples using laboratory-spiked samples. Aqueous methods were tested on 5 water sources, with 23 of 24 compounds recovered within DoD QSM Ver5.2 limits. New solvent extraction (SE) methods enabled recovery of all 24 compounds from 6 soils within QSM limits, and a majority of the 24 compounds were recovered at acceptable levels from 4 tissues types. A modified chromatographic treatment method removed analytical interferences from tissue extracts. Two orthogonal high-performance liquid chromatography-ultraviolet (HPLC-UV) separation methods, along with an HPLC–mass spectrometric (HPLC-MS) method, were developed. Implementing these new methods should reduce labor and supply costs by approximately 50%, requiring a single extraction and sample preparation, and 2 analyses rather than 4. These new methods will support environmental monitoring of IM and facilitate execution of risk-related studies to determine long-term effects of IM compounds.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!