Ultraviolet Light in Water and Wastewater Sanitation - Chapter 1 pptx

... in early publica- tions of Walden and Powell [19 11] , von Recklinghausen [19 14], Spencer [19 17], Fair [19 20], and Perkins and Welch [19 30]. All these applications were abandoned in the late 19 30s. ... Contents Chapter 1 Introduction 1. 1 Historical: Use of Ultraviolet Light in Drinking Water Treatment 1. 2 Present State of Standards and Regulations 1. 3 De...

Ngày tải lên: 11/08/2014, 09:21

... elements and compounds of interest in the generation of UV light. 300 10 −8 10 −7 10 −6 10 −5 10 −4 10 −3 10 −2 10 1 1 10 10 2 10 3 400 500 600 700 800 900 10 00 11 00 12 00 13 00 14 00 15 00 Vapor ... Hg) 300 10 −8 10 −7 10 −6 10 −5 10 −4 10 −3 10 −2 10 1 1 10 10 2 10 3 400 500 600 700 800 900 10 00 11 00 12 00 13 00 14 00 15 00...

Ngày tải lên: 11/08/2014, 09:21

... (cm 3 ) E (cm 1 ) (water) m k 1 (s 1 ) E (cm 1 ) (water + PHBA) m k 1 (s 1 ) 4.54 12 5 0.046 0. 712 −0.0429 1. 84 0.340 −0.0255 6.49 300 0.046 0.546 −0.0370 1. 84 0 .15 5 −0. 010 7 8.42 560 0.046 ... Hewitt [19 01] and the drinking water of the city of Marseille in France was disinfected with UV light as early as 19 10. The reliable operation and functioning of...

Ngày tải lên: 11/08/2014, 09:21

... and reactor design. Typical values for k are, for example, 0. 016 /min for a low-pressure 8-W(e) lamp (without the 18 5 nm-line), and 0.033/min for a 15 -W(e) lamp transmit- ting also the 18 5 nm-line. ... Ku and Ho [19 90]; Lipczynska- Kochany and Bolton [19 92]; Sundstrom et al. [19 89]; Yue and Legrini [19 89, 19 92]; and more related to waste treatment, Yost [19 89]. Orga...

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... propanols— 2-( 2-hydroxypropoxy ) -1 -propanol, 1- ( 2-ethoxypropoxy )-2 -propanol, 1- ( 2-methoxypropoxy ) -1 -propanol—at parts per billion levels appear unchanged at the preceding UV irradiation doses. Toxicity to fish of UV-treated ... on the number of European applications in wastewater treatment. 5 .1 REGULATIONS AND GUIDELINES FOR DISINFECTION OF TREATED WASTEWATER...

Ngày tải lên: 11/08/2014, 09:21

... Band II, Kap. (Aug. 19 73). DIN (German Normalization Institute), Standard 503 1- 1 0, 19 96. Dodin, A. et al., Bull. Acad. Nat. Médecine (France), 15 5, 44, 19 71. Dohan, J.M. and Masschelein, ... Chelsea, MI, 19 87, chap. 73. Nicole, I. et al., Environ. Technol., 12 , 21, 19 91. NWRI, Ultraviolet Disinfection Guidelines for Drinking Water and Water Reuse,...

Ngày tải lên: 11/08/2014, 09:21

... Regimes in Ozonation 11 .5 In uence of the Type of Water and Gas Flows 11 .6 Mathematical Models 11 .6 .1 Slow Kinetic Regime 11 .6 .1. 1 Both Gas and Water Phases in Perfect Mixing Flow 11 .6 .1. 2 Both ... of Wastewater Ozonation 11 .8 .1 Case of Slow Kinetic Regime: Wastewater with Low COD 11 .8 .1. 1 Kinetic Modeling of Wastewater Ozonation without Considering...

Ngày tải lên: 11/08/2014, 17:22

... Φ M ), Einstein.cm.mol 1 s 1 10 7 10 8 10 9 10 10 10 11 10 12 10 13 r R /r UV 10 12 10 11 10 10 10 9 10 8 10 7 10 6 10 5 10 4 10 3 10 2 10 1 10 0 10 1 I o = 10 –8 I o = 10 –6 I o ... Φ M ), Einstein.cm.mol 1 s 1 10 6 10 7 10 8 10 9 10 10 10 11 10 12 r R /r UV 10 6 10 5 10 4 10 3 10 2 10 1 10 0 10...

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... Quality. Integrated Pest Management. Washington, DC: Supt Documents, US Govt Printing Office, Stock No. 411 1- 0 010 , 19 72. 11 . US Congress. National Environmental Policy Act. Pub. L. 9 1- 1 90, 42 U.S.C. ... Agricul- tural Research and General Legislation of the Committee on Agriculture and For- estry, Sept 30 and Oct 1, 19 71. US Senate, 92nd Congress; S. 17 94. Washington, D...

Ngày tải lên: 11/08/2014, 12:21

... 10 10 M 1 sec 1 (2.45) 50 sec 1 (2.46) 10 5 M 1 sec 1 (2.47) 1. 1 × 10 10 M 1 sec 1 (2.48) 3.3 × 10 7 M 1 sec 1 (2.49) 4.2 × 10 6 M 1 sec 1 (2.50) 2 × 10 9 M 1 sec 1 (2. 51) ... × 10 8 M 1 sec 1 (2.58) 7 × 10 4 M 1 sec 1 (2.59) 2 × 10 5 M 1 sec 1 (2.60) 4 .1 × 10 9 M 1 sec 1 (2. 61) 4.9 × 10 9...

Ngày tải lên: 11/08/2014, 17:22