Standard Methods for Examination of Water & Wastewater 6 pot

... Sincero 168 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 less...

Ngày tải lên: 19/06/2014, 16:20

... 137.5 76 45.5 33 2 −5. 96 ⇒ 0 137.5 12:00 175 52 205 137.5 57 45.5 2 15 .6 a 1 96. 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 ... 3020 164 9324 26 3 3020 2050344 30 3 3020 30 563 85 40 5 3020 4 060 405 50 6 3020 5 066 4 46 60 7 3020 60 704 86 70 893020 70 765 07 80 9 3020 8080547 9011 3020 7 16 4 5 16...

Ngày tải lên: 19/06/2014, 16:20

... pump At 20°C, P v (vapor 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 − ... 0.0 86 m== Therefore, TDH 0.0 86= 20 30++ 50.0 86 = m of water TDH TDHvivo= h abso = h vo h absi h vi +()–+ 50.0 86 h abso = 1.3 2 2 9.81() 3.087– 10.34+() 1.059 2 2 9.8...

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 ... time π D 2 4 Q pks /3( )60 ( )60 () π 30() 2 4 2.92() 0 .69 /3( )60 ( )60 () 2.49 h== = Q R VQ ms t o – t o = V π 30() 2 4 2.92()2 064 .03 m 3 , = =for one tank Q ms...

Ngày tải lên: 19/06/2014, 16:20

... is (6. 12) FIGURE 6. 6 A parcel of fluid acted upon by shear forces in the x direction. P K T N 3 D a 5 ρ From the table, K T 0.025== P 0.025 10.47() 3 0 .61 () 5 997()24 16. 15 N ⋅ m/s 24 16. 15 7 46 ... 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 th...

Ngày tải lên: 19/06/2014, 16:20

... 12. 96 0.15 19.44 0.35 25.92 0 .64 16 −3.2 8 −0.4 3.84 0.01 5. 76 0.027 7 .68 0.05 24 −0 .6 8 −0.075 0.72 0.00 1.08 0.00 1.44 0.001 30 −0.4 6 −0.07 0 .64 0.00 0. 96 0.00 1.28 0.001 40 −0 .6 10 −0. 06 0.5 76 ... 2.21 0. 762 – 0. 762 0.414– = 1200 0. 762 x 2448 min= x 2.21 x 2.21 x 1500– 1500 2100– 2.21 2. 26 2. 26 4 .64 – = 1500 2. 26 x 1487= 2100 4 .64 160 2448 y 2448–...

Ngày tải lên: 19/06/2014, 16:20

... X/M [C ]/X/M 1 0.25 6. 0 0.0 76 78.95 2 0.32 1.0 0.075 13.33 3 0.5 0.25 0.0495 5.05 4 1.0 0.09 0.0249 3 .61 5 1.5 0. 06 0.0 166 3 .61 a 3 0.09 0. 06+ ()2 6. 0 1.0 0.25++()– 3 3 .61 3 .61 +()2 78.95 13.33 ... low cost adsorbents. Water Science Technol., Proc. 19 96 2nd IAWQ Int. Conf. Pretreatment of Industrial Wastewaters, Oct. 16 18, 36, 2–3, 189–1 96. Elsevier Science Ltd., Oxfo...

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 th...

Ngày tải lên: 19/06/2014, 16:20

... mass No. of Equiv. (meq/L) Ca 2+ 80 20.05 3.99 Mg 2+ 12.0 12.15 1.0 Na + 46. 0 23 2 ∑ = 6. 99 152.5 61 a 2.5 2 16. 0 48.05 b 4.49 ∑ = 6. 99 HCO 3 − SO 4 2− 1.008+12.0+3( 16) 1 a 61 = 32.1+4( 16) 2 ... M T CaHCO 3 2.5 1 1000   25,000( )62 .5 kgeq/d== 62 .5 20.05() Ca HCO 3 () 2 Ca = 62 .5 20.05() 40.1+2 61 () 40.1   5 065 .63 kg/d== M CaOCaHCO 3 0.35 0.88()5 065...

Ngày tải lên: 19/06/2014, 16:20

... Treatment of Water and Wastewater l Symbol for liquid state of a substance LI Langelier of Saturation Index P block Percent blocking potential of a segment of pipe due to potential deposition of CaCO 3 pH s Saturation ... Sincero 518 Physical–Chemical Treatment of Water and Wastewater 11.1.3 ’S FOR PERTINENT CHEMICAL REACTIONS OF THE C ARBONATE EQUILIBRIA Let us n...

Ngày tải lên: 19/06/2014, 16:20