PHYSICAL - CHEMICAL TREATMENT OF WATER AND WASTEWATER - CHAPTER 8 ppsx

... system of units (meter-kilogram-second) and the temperature of operation is 25°C, what is the value of ? 8. 40 The feedwater to an RO unit contains 3,000 mg/L of NaCl, 300 mg/L of CaCl 2 , and 400 ... rejection ions Ca 2+ SO 2- Na + H 2 0Na + Cl - H 2 0Na + Cl - H 2 0 H 2 0Na + Cl - H 2 0Na + Cl - H 2 0 H 2 0Na + Cl - H 2 0Na + Cl - H 2 0 H 2 0Na + C...

Ngày tải lên: 11/08/2014, 10:22

... Automation of Water and Wastewater Treatment and Transport Syst., July 6–9, Brighton, England, 37, 12, 111–119. Elsevier Science Ltd., Exeter, England. Chuang, C. J. and K. Y. Li (1997). Effect of coagulant ... concept of equivalence, the number of equivalents of all the species participating in a given [] Y 10 8 1 .82 (10 −19 ) 10 −10 1 .82 (10 −23 ) H opt ++ ++ 10 8...

Ngày tải lên: 11/08/2014, 10:22

... ⇒ kg µ g⇒ 88 kg 88 10 6 ( )88 ,000,000,000 µ g== 88 ,000,000,000 µ g 88 ,000,000,000 10 3– ()10 3– ()10 3– ( )88 kg Ans== 88 ,000,000,000 µ g 88 ,000,000,000 10 6– ( )88 kg Ans== 1ft 1/3. 281 m= 10 cfs ... Federal Water Pollution Control Act Amendments P.L. 8 7 -8 8 1965 Water Quality Act of 1965 P.L. 8 9-2 34 1966 Clean Water Restoration Act P.L. 8 9-7 53 1970 Wat...

Ngày tải lên: 11/08/2014, 10:22

... P. Sincero and G. A. 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 ... PM © 2003 by A. P. Sincero and G. A. Sincero 162 Physical Chemical Treatment of Water and Wastewater Protozoa move through the use of the pseudopod or the...

Ngày tải lên: 11/08/2014, 10:22

... Instru- mentation, Control and Automation of Water and Wastewater Treatment and Transport Syst., July 6–9, 1997, Brighton, England, 37, 12, 181 –192. Elsevier Science Ltd., Exeter, England. TX249_frame_C06.fm ... providing the agitation. Generally, three types of mixers are used in the physical chemical treatment of water and wastewater: rotational, pneumatic, an...

Ngày tải lên: 11/08/2014, 10:22

... rapid-sand filter of average porosity of 0.42. The temperature of the water to be filtered is 20°C. The head losses in the slow-sand and rapid-sand filters are 0.06 m and 0.71 m, respectively and ... sand of sieve analysis of Problem 7.10 is used to con- struct (a) a slow-sand filter of average porosity of 0.39 operated at 9.33 m 3 /m 2 ⋅ d and (b) a rapid-sand filter of...

Ngày tải lên: 11/08/2014, 10:22

... Sincero and G. A. Sincero 5 18 Physical Chemical Treatment of Water and Wastewater 11.1.3 ’S FOR PERTINENT CHEMICAL REACTIONS OF THE C ARBONATE EQUILIBRIA Let us now derive the values of the of the ... 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 9...

Ngày tải lên: 11/08/2014, 10:22

... precipi- tation. J. Am. Water Works Assoc., 89 , 1, 75 86 . Perry, R. H. and C. H. Chilton (1973). Chemical Engineers’ Handbook. p (3–1 38) . McGraw- Hill, New York, 3–1 38. Ranganathan, K. and C. ... Int. Conf. on Upgrading of Water and Wastewater Syst., May 25– 28, Kalmir, Sweden, 37, 9, 121–126. Elsevier Science Ltd., Exeter, England. Holtzclaw Jr., H. F. and W. R. Rob...

Ngày tải lên: 11/08/2014, 10:22

... encountered in the normal treatment of water and wastewater. This concentration is representative of the dissolved solids concentra- tion of sea water. 14.5 CHEMICAL REACTION OF THE PHOSPHATE ION ... York, 280 , 301. Strikland, J. (19 98) . Development and application of phosphorus removal from wastewater using biological and metal precipitation techniques. J. Chart...

Ngày tải lên: 11/08/2014, 10:22