Standard Methods for Examination of Water & Wastewater 8 docx

... Sincero 1 68 Physical–Chemical Treatment of Water and Wastewater the parasites. For municipal water systems, the most practical and effective way of getting rid of the parasite is the use of a properly ... 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 is les...

Ngày tải lên: 19/06/2014, 16:20

... 15.6 a 196 .88 b 14:00 235 62 205 205 56.5 57 2 54.2 202.37 16:00 175 51 163 205 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 1 58 166 45.5 48 2 127 .84 167. 78 22:00 ... 3020 3056 385 40 5 3020 4060405 50 6 3020 5066446 60 7 3020 6070 486 70 89 3020 7076507 80 9 3020 80 80547 9011 3020 7 16 4 5 16 3 1 2 3 3 8 10 5 8 11 1 8 10 5...

Ngày tải lên: 19/06/2014, 16:20

... 1.3 2 2 9 .81 () 0. 086 m== Therefore, TDH 0. 086 = 20 30++ 50. 086 = m of water TDH TDHvivo= h abso = h vo h absi h vi +()–+ 50. 086 h abso = 1.3 2 2 9 .81 () 3. 087 – 10.34+() 1.059 2 2 9 .81 () +–+ ... J. (1 986 ). Water and Wastewater Technology. John Wiley & Sons, New York. Kotov, A. I. (19 98) . Water treatment system is one of the most important elements of th...

Ngày tải lên: 19/06/2014, 16:20

... treatment of raw water for drinking purposes are two of the units in the physical treatment of water and wastewater that use the concept of flocculent settling. These units are either of circular or ... 100 0 .88 0.132 101 FIGURE 5 .8 Settling column analysis of discrete settling. C D 24 Re 3 Re 0.34 for 1 Re≤ 10 4 ≤()++= C D 0.4 for Re 10 4 >()= Re dv ρ µ dv...

Ngày tải lên: 19/06/2014, 16:20

... length of the paddle blades of the longest compartment to that of the length of the paddle blades of the middle compartment is 2.6:2, and the ratio of the length of the paddle blades of the middle compartment ... equal to a force times a moment arm. The force at the bottom face F bot or the force at the upper face F up in the parcel represents this force. This force is a for...

Ngày tải lên: 19/06/2014, 16:20

... (m 3 ) 0——————— 8 8. 2 8 −1.03 37. 08 1.36 51.91 2.76 16 −4.0 8 −0.5 18 0.3 25.2 0.61 24 −1 .8 8 −0.23 8. 28 0.06 11.59 0.12 30 −0.6 6 −0.1 3.6 0.01 5.04 0.02 40 −0 .8 10 −0.1 2 .88 0.53 4.03 1.13 480 —————— ∑h i ... 0.50 0.30 0.075 32–35 0.46 0. 18 1.72 0. 08 29 0.52 0. 48 0. 38 0. 086 4 35–42 0. 38 0. 18 2.21 0.07 20 0.54 0.46 0.39 0. 082 8 42– 48 0.32 0.20 3.02 0.05 13...

Ngày tải lên: 19/06/2014, 16:20

... 102. 18( )90()– 104.9 3,000() 100()== 98. 2%= Ans b()R 104.9 3,000 300 400++()0.61 102. 18( )90 68+ +()– 104.9 3,000 300 400++() 100()= 388 ,130 6, 482 .30– 388 ,130 = 100() 98. 3%= Ans TX249_frame_C 08. fm ... at the top of the bed. The packed density of the carbon bed is 721. 58 kg/m 3 . 8. 16 A wastewater containing 25 mg/L of phenol and having the characteristic breakthr...

Ngày tải lên: 19/06/2014, 16:20

... 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 ... environmental engineer performs an experiment for the purpose of determining the value of β of a particular wastewater. If β is found to be equal to 0 .89 and t...

Ngày tải lên: 19/06/2014, 16:20

... (25,000) = 18. 875 keq/d = 18. 875(20.05) = 3 78. 44 kg/d Therefore, M sodAshCa = 2.65(1)(3 78. 44) = 1002 .88 kg/d of pure soda ash M sodAshCaMg = 0 Therefore, M sodAsh = 1002 .88 + 0 = 1002 .88 kg/d = ... 0.3– 2.5 0 .88 == M T CaHCO 3 2.5 1 1000   14,750()36 .88 kgeq/d== 36 .88 20.05() Ca HCO 3 () 2 Ca 36 .88 20.05() 40.1 2 61()+ 40.1   == 2 989 .12 kg/d= M CaOCaHCO 3 0...

Ngày tải lên: 19/06/2014, 16:20

... cal– /gmmol of CaCO 3 s() == R 1. 987 cal gmmol.K° T 1 25 273+ 2 98 K=== T 2 15 273+ 288 °K T 2 60 273+ 333°K== == K T 2 at 15°K 4 .8 10 9– ()exp 2,950 1. 987 2 98( ) 288 () 288 2 98 ()= 4.0 38 10 9– () ... Treatment of Water and Wastewater Coucke, D., et al. (1997). Comparison of the different methods for determining the behaviour of water to calcium carbonate. Aqu...

Ngày tải lên: 19/06/2014, 16:20