Kinetic modeling of U.V. disinfection of water

Severin, Blaine F.; Suidan, Makram T.; Engelbrecht, Richard S.

doi:10.1016/0043-1354(83)90027-1

Cited by 148 publications

(84 citation statements)

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“…2). The E. coli inactivation curve showed a typical S-shaped behavior, as in analysis of survival data, with an initial exponential decay response delayed briefly (lag-time phase) and two stage of inactivation, which is in agreement with results presented by Severin et al (1983), Wegelin et al (1994), Kehoe et al (2001), Kowalski (2001), andSalih (2003).…”

Section: Resultssupporting

confidence: 80%

Domestic Wastewater Disinfection Using Solar Radiation for Agricultural Reuse

Sanchéz-Román¹,

Soares²,

Matos³

et al. 2007

Transactions of the ASABE

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Section: Resultssupporting

confidence: 80%

Domestic Wastewater Disinfection Using Solar Radiation for Agricultural Reuse

Sanchéz-Román¹,

Soares²,

Matos³

et al. 2007

Transactions of the ASABE

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“…Many studies have confirmed that homogeneous populations of organisms exhibit an initial resistance to UV light, in the form of a shouldered survival curve (Severin et al, 1983). The reason may be that microorganisms absorbing a sub-lethal UV dose may recover and continue multiplying (Ye et al, 2007).…”

Section: Inactivation Characteristics Of Mold Spores By Uv-cmentioning

confidence: 97%

Inactivation Characteristics and Modeling of Mold Spores by UV-C Radiation Based on Irradiation Dose

Trivittayasil

Nashiro

Tanaka

et al. 2015

FSTR

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Inactivation characteristics by UV-C radiation of Cladosporium cladosporioides and Penicillium digitatum, known as decay-inducing molds on fruits, were investigated. The survival curve of C. cladosporioides with irradiation dose was found to be biphasic in nature; the inactivation rate was initially high and slowed with increasing irradiation dose. In contrast, the survival curve of P. digitatum was approximately linear. A shoulder on the survival curves of both species was observed at low dose, indicating their resistance to low-dose UV-C. The mathematical model representing the inactivation of C. cladosporioides was the biphasic linear model, whereas the first-order kinetics model was applicable to P. digitatum.

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“…UV irradiation has successfully been implemented to reduce microbial load in water (Severein et al 1983;Blatchley et al 1998) and air (Riley and Nardella 1989) and for surface sterilization (Katara et al 2008). The main advantage of UV over biocides is that it does not produce any undesirable by-products and does not require additional storage or disposal.…”

Section: Ultraviolet Irradiationmentioning

confidence: 99%

The microbiology of metalworking fluids

Saha

Donofrio

2012

Appl Microbiol Biotechnol

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Metalworking fluids (MWFs) are complex mixtures of chemicals and are indispensable materials in industry. They are used as cooling and lubricating agents in different machining process such as grinding, milling, and cutting. The quality of MWFs is affected by physical, chemical, and microbial contaminates. In particular, MWFs are highly vulnerable to microbial contamination, which may act both as potential pathogens and deteriorgens. Microbial contamination is of major concern due to potential health hazards such as skin dermatitis and hypersensitivity pneumonitis. The contaminated MWFs can exhibit high degrees of microbial loading, ranging from 10(4) to 10(10) colony-forming units (CFU)/ml. Wide varieties of microorganisms are reported to colonize MWFs. Traditional culturing techniques are not only laborious and time consuming but also underestimate the actual distribution of the microorganisms present in the contaminated MWFs. Therefore, rapid molecular methods such as real-time PCR and fluorescent in situ hybridization are implemented to monitor the microbial load. In industry, biocides are presently used to control microbial contamination. However, it has its own disadvantages and therefore, in recent years, alternative methods such as UV irradiation were evaluated to reduce microbial contamination in MWFs. Microbes inhabiting the MWF are also capable of forming biofilm which is detrimental to the MWF system. Biofilm is resistant to common disinfectant methods, and thus further research and development is required to effectively control its formation within MWF systems. This review is intended to discuss the overall microbiological aspects of MWF.

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Kinetic modeling of U.V. disinfection of water

Cited by 148 publications

References 1 publication

Domestic Wastewater Disinfection Using Solar Radiation for Agricultural Reuse

Domestic Wastewater Disinfection Using Solar Radiation for Agricultural Reuse

Inactivation Characteristics and Modeling of Mold Spores by UV-C Radiation Based on Irradiation Dose

The microbiology of metalworking fluids

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