| Description |
1 online resource (230 p.) |
| Contents |
Intro -- Title Page -- Copyright -- Contents -- List of Figures -- List of Tables -- Preface -- Chapter 1 Introduction Robert Bastian and Katherine (Kati) Y. Bell, Ph.D., P.E., BCEE -- 1.0 PURPOSE -- 1.1 Perspective -- 1.2 History of Ultraviolet Disinfection -- 1.3 Disinfection Criteria -- 1.3.1 Indicator Bacteria -- 1.3.2 Enumeration Methods for Indicator Bacteria -- 2.0 REGULATORY CONSIDERATIONS -- 2.1 Regulatory Frameworks in the United States and Canada -- 2.2 Regulatory Drivers for Ultraviolet Disinfection -- 3.0 OTHER RELATED GUIDANCE -- 4.0 ORGANIZATION OF THE PUBLICATION |
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5.0 REFERENCES -- Chapter 2 Ultraviolet Disinfection Process Concepts and Equipment Systems Karl G. Linden, Ph.D., and Hadas Mamane, Ph.D. -- 1.0 PRINCIPLES OF ULTRAVIOLET DISINFECTION -- 1.1 Electromagnetic Spectrum -- 1.2 Properties of Ultraviolet Light -- 1.2.1 Properties of a Photon -- 1.2.2 Ultraviolet Absorbance and Transmittance -- 1.2.3 Laws of Photochemistry -- 1.2.4 Ultraviolet Scattering -- 1.3 Germicidal Action of Ultraviolet Light -- 1.3.1 Nucleic Acid Damage -- 1.3.2 Deoxyribonucleic Acid and Protein Absorbance -- 1.3.3 Ultraviolet Action Spectrum |
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1.3.3.1 Means to Obtain an Action Spectrum -- 1.3.3.2 Action Spectrum by Organism -- 1.3.3.3 Can the Deoxyribonucleic Acid Absorbance Spectrum Represent the Action Spectrum? -- 1.4 Microbial Repair and Regrowth -- 1.4.1 Photo-Reactivation -- 1.4.2 Dark Repair -- 1.4.3 Regrowth -- 2.0 ULTRAVIOLET DOSE RESPONSES OF PATHOGENS AND SURROGATES -- 2.1 Collimated Beam Testing -- 2.1.1 Types of Collimated Beams -- 2.1.2 Ultraviolet Dose Measurements and Calculation -- 2.1.3 Factors Affecting Ultraviolet Dose Calculation -- 2.2 Data on Microbe Dose Response -- 2.2.1 Bacteria -- 2.2.2 Viruses |
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2.2.3 Protozoa -- 3.0 ULTRAVIOLET LAMP TECHNOLOGIES -- 3.1 Low-Pressure Ultraviolet Lamps -- 3.2 Low-Pressure High-Output Ultraviolet Lamps -- 3.3 Medium-Pressure Ultraviolet Lamps -- 3.4 Alternative Lamp Technologies -- 3.4.1 Ultraviolet Light-Emitting Diodes -- 3.4.2 Microwave Ultraviolet Radiation -- 3.4.3 Pulsed Ultraviolet Lamps -- 3.4.4 Excimer Lamps -- 4.0 REFERENCES -- Chapter 3 Bioassay Methods to Determine the Ultraviolet Dose (Fluence) Delivery of an Ultraviolet System G. Elliott Whitby, Ph.D., and Bill Sotirakos -- 1.0 INTRODUCTION -- 2.0 BIOASSAY PROTOCOL FOR WASTEWATER |
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2.1 Planning and Preparation -- 2.1.1 Test Ultraviolet System Characteristics -- 2.1.2 Challenge Microorganisms Used in Validations -- 2.1.3 Water Source Key Characteristics -- 2.1.4 Absorbing Chemical -- 2.1.5 Mixing and Sampling -- 2.1.6 Lamp Variability and Ultraviolet Sensor Port Window Testing -- 2.1.7 Measurement Equipment -- 2.2 Inlet/Outlet Structures -- 2.3 Test Lamps -- 2.4 Test Conditions and Quality Assurance/Quality Control Samples -- 2.5 Third-Party Oversight -- 3.0 MICROBIOLOGICAL TESTING -- 3.1 Preparing the Challenge Microorganism |
| Notes |
Description based upon print version of record |
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3.2 Verifying Ultraviolet Reactor Properties and Ultraviolet-Intensity Sensor Performance |
| Subject |
Sewage -- Purification -- Ultraviolet treatment.
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Sewage -- Purification -- Ultraviolet treatment.
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| Form |
Electronic book
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| Author |
Staff, International Ultraviolet Association
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| ISBN |
1572783176 |
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9781572783171 |
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