Standard Methods for Examination of Water & Wastewater 15 pptx
Standard Methods for Examination of Water & Wastewater_1 ppt
... case of taste,there should be no noticeable odor at the point of use of any drinking water. Thesecondary standard for odor is 3.Fresh wastewater odor is less disagreeable than stale wastewater ... 2003 by A. P. Sincero and G. A. SinceroConstituents of Water and Wastewater 153 The other method of enumerating coliforms is through the use of the multiple-tube technique. This method is statistical ... Constituents of Water and Wastewater 131 freedom from toxic materials, favorable pH and osmotic pressure conditions, optimalamount of nutrients, and the presence of significant amount of population of...
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Standard Methods for Examination of Water & Wastewater_2 ppt
... Physical–Chemical Treatment of Water and Wastewater Solution: From Figure 3.4, for an H = 0.5 m, and θ = 90°, K = 0.58.Therefore,Example 3.5 To measure the rate of flow of raw water into a water treatmentplant, ... rate of flow of fluids. In wastewater treatment, the choice of flow meters is especially critical because of thesolids that are transported by the wastewater flow. In all cases, the possibility of solids ... treatment of water and wastewater. TX249_frame_C03.fm Page 179 Friday, June 14, 2002 4:22 PM© 2003 by A. P. Sincero and G. A. Sincero194 Physical–Chemical Treatment of Water and Wastewater Parshall...
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Standard Methods for Examination of Water & Wastewater_3 potx
... pumpAt 20°C, Pv (vapor pressure of water) = 2.34 kN/m2 = 0.239 m of water Assume standard atmosphere of 1 atm = 10.34 m of water. Therefore, theoretical limit of pump cavitation = −(10.34 − ... (1986). Water and Wastewater Technology. John Wiley & Sons, New York. Kotov, A. I. (1998). Water treatment system is one of the most important elements of theecological safety of the plant. ... Elevation of fluid from a reference datumγSpecific weight of water ηpump efficiencyρDensity of water ωSpeed of pump in radians per secondµabsolute or dynamic viscosityPROBLEMS4.1 Water at...
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Standard Methods for Examination of Water & Wastewater_4 potx
... treatment of raw water for drinking purposes are two of theunits in the physical treatment of water and wastewater that use the concept of flocculent settling. These units are either of circular or ... concentration of dissolved air in tap water at standard pressure corre-sponding to the temperature equal to the temperature of the wastewater. Cas,t,sp canbe obtained from the corresponding value for ... the saturation concentration of the dissolvedair in the wastewater in the saturation tank at standard pressure Ps corresponding tothe temperature of the wastewater; P is the pressure in the...
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Standard Methods for Examination of Water & Wastewater_5 ppt
... length of the paddle blades of thelongest compartment to that of the length of the paddle blades of the middlecompartment is 2.6:2, and the ratio of the length of the paddle blades of the middlecompartment ... equal to a force times a moment arm. The force at the bottomface Fbot or the force at the upper face Fup in the parcel represents this force. Thisforce is a force of shear. These two forces ... velocity of bubblesAverage rise velocity of water vpTangential velocity of paddlevptPaddle tip velocityVolume of tankVbVolume of bubbleAverage volume of bubbles in tankAverage volume of...
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Standard Methods for Examination of Water & Wastewater_6 pot
... (1985). Water Quality. Addison-Wesley, Reading, MA.Vera, L., et al. (1998). Can microfiltration of treated wastewater produce suitable water for irrigation? Water Science and Technology Wastewater: ... The porosity of the unstratified bed is 0.39, and that of thestratified bed is 0.42. The temperature of the water to be filtered is 20°C.7.11 For the sharp filter sand of sieve analysis of Problem ... M. J. Hammer (1993). Water Supply and Pollution Control. Harper &Row, New York.WEF (1994). Preliminary Treatment for Wastewater Facilities (Manual of Practice, Om-2). Water Environment Federation.Williams,...
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Standard Methods for Examination of Water & Wastewater_7 doc
... breakthrough mass of adsorbate before exhaustion. The totalvolume of wastewater treated at exhaustion is designated by .Determination of the length of the active zone. The length of the active ... isintroduced at the top of the bed. The packed density of the carbon bed is721.58 kg/m3.8 .15 A wastewater containing 25 mg/L of phenol and having the characteristicbreakthrough of Problem 8.12 is ... aremade; therefore, osmotic pressure depends on the number of particles in solution.From this finding, osmotic pressure is, therefore, additive.Determination of and s. The straight-line form of Equation...
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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 [Cos,w] of the wastewater after shaking the jar thoroughly is 7.5 mg/L. The temperature of the wastewater ... calculate[Cos,w].9 .15 An environmental engineer performs an experiment for the purpose of determining the value of β of a particular wastewater. If β is found to beequal to 0.89 and the [Cos,w] 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 beequal to 0.89 and the temperature of the wastewater is 25°C,...
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Standard Methods for Examination of Water & Wastewater_9 potx
... to softening plantMg1 Concentration of magnesium in influent from first stage of split-treatment softening plantMg f Concentration of magnesium in treated water Mgr Concentration of raw water ... calculate the totalmass of calcium carbonate solids precipitated from the removal of themagnesium bicarbonate of the carbonate hardness of magnesium.10.27 For the raw water of Example 10.8, using ... of 40 mg/L as CaCO3, calculate the totalmass of magnesium hydroxide solids produced from the precipitation of magnesium in the noncarbonate hardness of magnesium.10.29 For the raw water of...
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Standard Methods for Examination of Water & Wastewater_10 docx
... Physical–Chemical Treatment of Water and Wastewater Coucke, D., et al. (1997). Comparison of the different methods for determining the behaviour of water to calcium carbonate. Aqua (Oxford). 46, 2, 49–58.Edwards, ... Physical–Chemical Treatment of Water and Wastewater Therefore,Thus, the value of equilibrium constant is greater at 60°C than at 15 C. AnsThe value of the equilibrium constant for calcium carbonate ... treatment of natural waters.Khimiya i Tekhnologiya Vody. 15, 6, 468–474.Gomolka, E. and B. Gomolka (1991). Application of disk aerators to recarbonation of alkaline wastewater from wet gasification of...
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