Seawater was seeded with various strains of pathogenic bacteria and the samples were ozonized to determine the doses necessary to achieve disinfection. Apparently, the doses were the same as those used in ozonizing fresh water (which is 1 to 3 mg/1 in European drinking water treatment plants --
Get a QuoteUlrich_A Guide to Chemical Engineering Process Design and Economics - Ebook download as PDF File (.pdf), Text File (.txt) or read book online. was specified in the problem definition as 1.39 kg/s (5_000 kg/h). 3 This fixes column 7 of the material balance chart. (In an advanced flow sheet employed for the transformation from water
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Get a Quoteb) the efficiency of the boiler. Assume the values of enthalpies at the two state points as: h 1 = h [email protected] ° C = 169.33 kJ/kg at 2 MPa, 500 C, h 2 = 3467.6 kJ/kg Download free eBooks at bookboon.com 57
Get a Quote9. 10. 11 Environmental Engineering and Management Journal September 2016, Vol.15, No. 9, Gheorghe Asachi Technical University of Iasi, Romania EDITORIAL Material & Energy Recovery and Sustainable Development ECOMONDO th International Trade Fair of Material & Energy Recovery and Sustainable Development The contributions in the form of Full papers collected in this Special Issue of
Get a QuoteWeight of water W h Air Liquid D is an ideal gas. Apply Eq. 1.7.1 (R can be found in Table B.4). Solving the equation, p rRT, we obtain, using r = m/V, 0.5 kg kJ p 3 0.2968 (20 273) K 218 kPa absolute 0.2 m kg K Note: The resulting units are kJ/m3 kN m/m3 kN/m2 kPa. Air is compressed in an insulated cylinder from 20°C to 200°C. If the
Get a QuotekJ/kg and 1800 kJ/kg respectively. Neglecting pump work, the specific steam consumption in kg/kW-hr is a) 1.0 b) 0.36 c) 0.28 d) 3.6 17 M.Tech 87. In time study, the rating factor is applied to determine a) standard time of a job b) normal time of a job c) fixation of incentive rate d) merit rating of the worker 88.
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Get a QuoteFirst, calculate the heat released in freezing 2 kg of water at 0 C, Qc : 3 :0 kJ=mol) = 667 kJ Qc = (2 10 (18g) g =(6mol) The maximum coe cient of performance, max, is given by: max WQc = T T,c T ; min h c where Wmin is the minimum work needed to e ect the cooling, and Tc and Th are the temperatures of the cold (inside fridge) and hot (outer
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Get a Quoteµ is the density of liquid in kg/m 3, g is the acceleration due to gravity in m/s 2 and h is the level of the column of liquid in meters. Since mgh Wh P gh V V µ = = = and P h ¸ = where ¸ is the specific weight of liquid in N/m 3, we have 2 3 (N/m ) (N/m ) (m) P h ¸ = × .
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Get a QuoteExample A water ﬂow of 1000 l/min (60 m3/h) is to be puriﬁed by the use of a settling basin. Determine the size and design of the basin. Expect a surface load of 3 m/h Vs > Q/A A > Q/Vs 60 m3/h > 3 m/h > 20 m2 This means that the surface area of the pond needs to be more than 20 m2 to allow proper settling.
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