ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK - CHAPTER 12 docx

... 314 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK (12. 14) where SVP = saturated vapor pressure at mean air temperature, millibars per Kelvin. All other terms have been defined previously. 12. 4.6 ... ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK 12. 4 STILL WATER SURFACE EVAPORATION In lake and reservoir management, knowledge of evaporative processes is important to t...

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... R. Environmental engineer’s mathematics handbook / by Frank R. Spellman, Nancy Whiting. p. cm. Includes bibliographical references and index. ISBN 1-5 667 0-6 8 1-5 (alk. paper) 1. Environmental engineering Mathematics ... 1-5 667 0-6 8 1-5 Library of Congress Card Number 2004051872 Printed in the United States of America 1 2 3 4 5 6 7 8 9 0 Library of Congress Cat...

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... 2.31 12. 2 psi=× 28.2 ft 5280 ft/mile 4 21 ,120 ft×= 21 ,120 ft 2.31 ft/psi 9143 psi= L1681_book.fm Page 69 Tuesday, October 5, 2004 10:51 AM © 2005 by CRC Press LLC 34 ENVIRONMENTAL ENGINEER’S MATHEMATICS ... Page 65 Tuesday, October 5, 2004 10:51 AM © 2005 by CRC Press LLC 44 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK • Cross-multiplying solves ratio problems; that is, w...

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... 162 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK (7 .12) Equation 7 .12 assumes that ambient air is used as the source of O 2 and that ... converting milligrams per cubic meter (mg/m 3 ) — a weight-per-volume-ratio — into a volume-per-unit weight ratio is necessary. If 1 g-mol of an ideal gas at 25°C occupies 24.45 L is an understood ... CRC Press LLC 152 ENVIRONMENTAL EN...

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... (Adapted from USEPA-84/03, p. 1-5 .) Re = pU D G η L1681_book.fm Page 208 Tuesday, October 5, 2004 10:51 AM © 2005 by CRC Press LLC 238 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK A b = area ... 1–exp(–(960)(9.36)/(5400)] = 0. 812 = 81.2% η 1exp(–wA/Q)= − L1681_book.fm Page 232 Tuesday, October 5, 2004 10:51 AM © 2005 by CRC Press LLC 222 ENVIRONMENTAL ENGINEER’S MATHEMAT...

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... right-of-way), streets and roads: 98 98 98 98 Paved; curbs and storm sewers (excluding right-of-way 98 98 98 98 Paved; open ditches (including right-of-way) 83 89 92 93 Gravel (including right-of-way) ... 17 .12 or TR-55 Figure 6-1 : V s /V r = 0.33 c. V s = (V s /V r )V r = (0.33)5.93 acre-ft = 1.96 acre-ft This volume represents the total storage required for the 2-year storm and t...

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... 10 –3 2.0 × 10 –1 Cyclohexane 0.18 7.3 1,1-Dichloroethane 6 × 10 –3 2.4 × 10 –1 1,2-Dichloroethane 10 –3 4.1 × 10 –2 cis-1,2-Dichloroethene 3.4 × 10 –3 0.25 trans-1,2-Dichlorethene 6.7 × 10 –3 0.23 Ethane ... this, environmental modeling continues to be widely used in environmental engi- neering, with its growth only limited by the imagination of the modelers. Environmental engineering...

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... 4 Algorithms and Environmental Engineering 4.1 INTRODUCTION In Chapter 3, we pointed out that environmental modeling has become an important tool within the well-equipped environmental engineer’s ... uncomplicated terrain. • CALPUFF — a multilayer, multispecies non-steady-state puff dispersion model that simulates the effects of time- and space-varying meteorological conditions...

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... lb/day 8.34 lb/gal 112 gal/day Sodium= Hypochlorite L1681_book.fm Page 123 Tuesday, October 5, 2004 10:51 AM © 2005 by CRC Press LLC 100 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK 5.2.2.2 ... by CRC Press LLC 102 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK If 1 mol of C atoms equals 12 g, how much is the mass of 1 mol of H atoms? • Note that carbon is 12 ti...

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... l 3 = = bb (C C C C ) N C 123 N ave +++… = L1681_book.fm Page 141 Tuesday, October 5, 2004 10:51 AM © 2005 by CRC Press LLC 146 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK where: s ... 140 ENVIRONMENTAL ENGINEER’S MATHEMATICS HANDBOOK Example 6.1 Problem : Given the following laboratory results for ... L1681_book.fm Page 139 Tuesday, October 5, 2004 10:51 A...

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