... 55 .3890 g, what is the suspended solids (SS) content of the sample? Solution: FIGURE 2.4 Imhoff cones. SS 55 .3890 55 . 352 0– 260 g mL 55 .3890 55 . 352 0– 260 1000()1000()== 142.3 mg/L Ans= TX249_Frame_C02.fm ... case of taste, there should be no noticeable odor at the point of use of any drinking water. The secondary standard for odor is 3. Fresh wastewater odor...
Ngày tải lên: 19/06/2014, 16:20
... t i V remi−1,i C i,i++ ++ 1 8:00 52 27 76 26 33 23 2 3.44 101 10:00 100 39 137 .5 76 45. 5 33 2 5. 96 ⇒ 0 137 .5 12:00 1 75 52 2 05 137 .5 57 45. 5 2 15. 6 a 196.88 b 14:00 2 35 62 2 05 2 05 56 .5 57 2 54 .2 202.37 16:00 1 75 51 163 2 05 ... 48 56 .5 2 91.8 182.24 18:00 151 45 166 163 48 48 2 112.24 174. 75 20:00 181 51 158 166 45. 5 48 2 127.84 167.78 22:00 1 35 40 1 05 1...
Ngày tải lên: 19/06/2014, 16:20
Standard Methods for Examination of Water & Wastewater_3 potx
... pressure of water) = 2.34 kN/m 2 = 0.239 m of water Assume standard atmosphere of 1 atm = 10.34 m of water. Therefore, theoretical limit of pump cavitation = −(10.34 − 0.239) = −10. 05 m −3.087 Cavitation ... h absi h vi + 3.087– 10.34+() 1. 059 2 2 9.81() + 7.31 m of water Ans== = odh h abso h vo + 57 .31 1.3 2 2 9.81() + 57 .39 m of water Ans== = TDH odh=...
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Standard Methods for Examination of Water & Wastewater_4 potx
... Time (min) Z p /Z o 5 10 15 20 25 30 35 40 0.1 95 a 68 55 30 23 0.2 129 121 73 67 58 48 43 0.3 154 113 92 78 69 60 53 45 a Values in the table are the results of the test for the suspended solids ... be obtained: (5. 32) From Equation (5. 27), again, (5. 33) Substituting in Equation (5. 28), (5. 34) (5. 35) Thus, (5. 36) Example 5. 6 Design the cross section of a grit...
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Standard Methods for Examination of Water & Wastewater_5 ppt
... 3 0.16 D 3 5. 36 D 2 += y 0.22– 0. 15 0.22– 220. 05 25. 77– 2 85. 63 1 25. 77– = 0.22 1 25. 77 y 0.22– 0. 15 0.22– 220. 05 25. 77– 2 85. 63 1 25. 77– = y 220. 05 y 0.18 D m Ans== 0. 15 2 85. 63 TX249_frame_C06.fm ... 30.86()= 1 5. 6 30.86( )5. 51 m Ans== G P µ V P µ V G 2 == µ 10 10 4– ()kg/m s⋅ V 1 ;5( )5( )5. 51()137. 75 m 3 === Therefore, P i for comp...
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Standard Methods for Examination of Water & Wastewater_6 pot
... 0.178 1 35 — 0.76 0.180 136 0.44 0 .56 0.020 0.0 056 20–28 0.70 0. 05 1. 05 0.13 69 0.47 0 .53 0.09 0.02 65 28–32 0 .54 0. 15 1.39 0.10 41 0 .50 0 .50 0.30 0.0 75 32– 35 0.46 0.18 1.72 0.08 29 0 .52 0.48 0.38 ... 0.0864 35 42 0.38 0.18 2.21 0.07 20 0 .54 0.46 0.39 0.0828 42–48 0.32 0.20 3.02 0. 05 13 0 .58 0.42 0.48 0.084 48–60 0.27 0. 15 4.94 0.03 7 0. 65 0. 35 0.43 0. 052 5 60–...
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Standard Methods for Examination of Water & Wastewater_7 doc
... 0.00274 kg/s. Therefore, Test No. PAC Added M (g) [C ] (mg/L) X/M [C ]/X/M 1 0. 25 6.0 0.076 78. 95 2 0.32 1.0 0.0 75 13.33 3 0 .5 0. 25 0.04 95 5. 05 4 1.0 0.09 0.0249 3.61 5 1 .5 0.06 0.0166 3.61 a 3 ... 1.0 0. 25+ +()– 3 3.61 3.61+()2 78. 95 13.33 5. 05+ +()– 0. 45 14 .5 21.66 194.66– 0.081=== b l a∑ 1 l C[] X /M ∑ C[] l 1 – 3 0.081 78. 95 13.33 5. 05+ +()6.0 1.0 0...
Ngày tải lên: 19/06/2014, 16:20
Standard Methods for Examination of Water & Wastewater_8 docx
... experiment for the pur- pose of determining the value of β of a particular wastewater. The [C os,w ] of the wastewater after shaking the jar thoroughly is 7 .5 mg/L. The temperature of the wastewater ... corrected to 20°C. Tap Water at 5. 5°C Time (min) ,(mg/L) 3 0 .5 6 1.7 9 3.1 12 4.4 15 5 .5 18 6.1 21 7.1 Wastewater at 25 C Time (min) [ ](mg/L) 3 0.9 6 1.8 9 2....
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Standard Methods for Examination of Water & Wastewater_9 potx
... 50 .0 M T Ca 1 f Ca –() V += f CaHCO 3 1 15 152 .5 – 0.90 f Ca 1 M T CaHCO 3 50 65. 63 kg/d=== = M T Ca 7 45. 75 kg/d V 25, 000 m 3 /d== Ca 2+ [] meq 12.3 50 65. 63 1 0.90–() 25, 000 50 .0 7 45. 75 ... Ca 2. 255 1 1000 25, 000( )56 .3 75= kgeq/d= 56 .3 75 20. 05( )1130.32 kg/d== f Ca 0. 755 2. 255 0.33== Ca 2+ [] meq 12.3 2076.91 1 0.71–() 25, 000 50 .0 1130.3...
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Standard Methods for Examination of Water & Wastewater_10 docx
... 2003 by A. P. Sincero and G. A. Sincero Water Stabilization 52 5 Therefore, Therefore, Therefore, Therefore, Therefore, B 6.80 10 15 () 0.94 7.24 10 15 ()== C K sp,CaCO 3 γ HCO 3 K 2 Ca 2+ {} ... 0.0004 geq/L= B K w γ OH = µ 2 .5( 10 5 )TDS γ 10 0.5z i 2 µ () 1 1.14 µ ()+ – == µ 2 .5 10 5 ()140()3 .5 10 3– () γ OH 10 0 .5 1() 2 3 .5 10 3– (){} 1+1.14 3 .5 10 3– (){} –...
Ngày tải lên: 19/06/2014, 16:20