THF'SQS Survey of the Piping Systen.of the East Lansing East water Plant A Thesis Submitted to The Faculty of MlCHIGfiN STATE COLLEGE OF AGRICULTURE AND APPLIED SCIENCE 1! Thomas . Poet ff Candidate for the Degree of Bachelor of Science \ June 1942 ACKNOCLEDGRMEHT I wish to express my appreciation to the faculty or nichigen Steto College for conuidering me e candidete for the Degree 0! Bachelor of Science. I also wish to express my sincere gratitude to both Professor Chester L. Allen, Heafi of Civil Engineering Departuent, and Professor Frank H. Therouz, Associate Professor of Civil Engineering, for their assistance in writing this thesis. View or the Softening Plant , -‘“ - fluibzbfi Tanks 1,2,8c3 Tank. 4 a: 5 y - ‘ Tanks 6 e 7 Ree water Line to Tanks 4.5.& 'I and return lines from 4.5.6.1 ‘7 DESCRIPTION OF PLANT The principal reason for making this survey was to in- vestigate the piping causing the degeneration of the zeo- lite sand in the softening tanks and how it could be reme- died. First..a description or the plant and how it Oper- ates will be given. The objects of the plant are to reduce hardness. to remove iron. and to remove free carbon dioxide. The plant. which ie.fully automatic. is located Letneen the pump and the distribution system as a pressure plant. all operations are automatic. or at least a major portion of them. An operator is not required at the plant except for inspec- tions. Supposedly 80% or the ester is softened by passing it through five automatic cylindrical zeolite softening unite and through one that is manually operated. Each tank is seven feet in diameter and eleven feet high and contains 200 cu.ft. of zeolite sand (Zea-Eur in the 5 automatic tanks and Zoo-Kerb in the manually Operated tank) at a depth or 5.19 feet. The sand is supported by 12 indEQs of gravel which covers a strainer system. Both the htrdness and the iron are removed in these units. the raw water from the well contains between 18 a 20 grains of hardness per gallon. The Zeo-Dur in the five automatic tanks will remove 2800 grains of hardness per cubic foot or sand which determines the amount of eater that can be treated before the sand has to be regenerated. The hardness of the water is caused by calcium and magnes- ium becarbonates and sulfates. The zeolite used in removing this hardness is a pro- cessed greensand base zeolite which has the property of exchanging its sodium for the calcium and magnesium of the hardness producing compounds in the water. The re- suiting sodium compounds do not cause hardness. The sod- iwm zeolite compound is indicated as seas. The softening reactions are shown in these equations: Nazz y C&(H003)2 : CaZ ‘ 2175123005 Nagz 4 Ca804 : 052 e Nagsoé Nags 4 Max:092 : 2:32 9 stance; E31322. e lJIgSO4 2: h1g2 «- Nazi-3 4 The Zeolite is regenerated by passing a sodium chloride brine through the sand bed. Ca2 + ZHaCl : Nazz e CaClg M52 * 23301 = NaZZ e KgCIZ The calcium and magnesium zeolites are changed back to sodium.zeolites and are ready to soften water again. The other 20% of the water is passed through tank No. 7, another manually operated tank. This tank has 100 cu. ft. of a.manganese zeolitc in it which removes iron, but not hardness. The flow from this tank and the flow from the six other tanks are mixed, giving a water with 80% of the hardness removed and all the iron compounds removed. The principal item of expense in the Operation of this plant ie the sodium chloride ( table salt }. It costs ap- proximately 2 cent: per 1000 gallons of water. The salt in used in regenerating the zeolite sand. Recently the sand in the five automatic tanks has lost its softening power which requires more salt for the more frequent rcgenerations. Aloe the sand, which is expensive, lasted only 60% of its guaranteed life. The Permutit Co. or new Yerk, N.Y. ie now ready to replace the worn sand. CAUSE or sum FAILURE the reason for the sand losing its softening power vee . that there was unequal distribution to the five automatic unite. consequently, the unequal distribution overworked come of the sand and did not uorh t e full capacity of the rest. The softening, cashing, brining, and rinsing are controlled by an electrically driven multipcrt valve. The valve in controlled by a timing device which is eet at a cycle as desired. But the cycles are equal for each or the five automatic tanks (tanks are numbered 1.2.3.4,5, on the diagrams). However, the piping to the tanks ie such that there it unequal flee. At the pumping rate required by the water demand, some or the tanks were overworked and weakened while the other: were being regenerated before it was necessary. This was the reason for making a survey of the piping system. The rates were found to be: Tank E0. c.r.m. 1------- 101.5 2------- 103.5 c---~-é- 105.5 4...‘...’ 90.0 6“-”"" 117e0 7-------- s 2.0 III. ”IICIJ 01‘ DL”If“Rc. IIIIIIG PILLS "3"? R1“ Tilt) All the pipes in the plant were measured and located. h drawing showing the layout is in the tack cover of this book. Table I has all the pipes and fittings listed for each of the seven routes to the seven tarts. The puipoee of Tatle I is to ta ‘2 ate the coefficients of the head losses through the pipes, fittings, and tanks in terms of v§./eg. V3" is the velocity in a 3 in. pipe. The coefficient equals r% in the ferrule hf : r L/D VZ/Zg. f equals coefficient of friction, L equals length of pipe in inches or feet, D equale diameter of pipe in inches or in feet, and hf equals head in feet. The f's were taken from figure 114-”Flow of water in pipee", Hvdraulice, Sehoeder and Dawson, p.198, using "fairly smooth pipe" at a velocity of 5 ft./ sec. The follceing f's were used: e"e-r-.022, c~c~rs.033, 5”d-f-.024, 4"c-r- .026, e"c-r=.oze. TABLE I COEFFICIENTS FOR HEAD LOLSES V 2 3" 4% IN TERMS OF ( Tam; No. 1 ) v 2 number: Item :: Amount : Y 3,, 28 1 e 3”! 8"! 6" '90 Bend 'c 1 e .02 2 o 8”: 3"! 8" T30 e 1 e .50 3 e 5" 90 Degree Bend e 1 e .50 4 . 5' Pipe '. 5' - 35*. .56 6 . 3": 2 1/2": 5" Tee . l . 1.50 6 e 3” Pipfi e 4" e 00‘ 7 e 3" 08‘s Valve 'e 1 0 e05 e . 3" Pipe ' '. 5" . .04 9 . 3" .Multiport Valve". 1 . 5.00 10 . 3" Pipe . 6' - 8" . .73 11 e 3" 90 Degre, Bend 0 1 e e50 12 e 3" P1P. e 1' - 10". .20 13 . a": 3" Orifice Plate. 1 . 6.06 1‘ e 5” P1P. o 1' ‘ 10". .20 16 e 3” 90 DESIC. Band 0 1 e e50 16 e 3" P1P. e 4" e 00‘ 17 e Softening Tank e 1 e 3099 18 . 5" Pipe . 6” . .04 19 e 5”! 2 1/2“: 5" T83 e 1 e 1050 30 e 3” Pip. e 1' - 6" e .17 21 . Multiport Valve . 1 . 5.00 22 . 3" Pipe . 6” . .04 23 e 3” 90 Degree Band 0 2 e 1.00 2‘ o 5” P1P. e 9" 0 e08 25 o 3” 90 Degree B.nd e 1 e 050 2 o 3" Pipe . 7' - O” o .80 27 e 3"! 4”: 5" T0. e 1 e .19 28 . 4* Pipe . 5' ~ 2" . .59 29 e 4": 5”: 4” To. 0 1 e 039 30 o 6" Pipe 0 2‘ "' 2" .0 .02 31 0 4'1 6"X 5” Tee 9 J. o .16 32 e 6" Gate Valve 0 1 . .01 33 e 6': 8"! 4" Te. 0 1 e 001 ( Tank N00 2 ) Humbere Item 0 amount 0 V g”/ 23 e e o 1 . 8"! a”! 6" 90 Bend . 1 . .02 3 . 8"! 3"! 8" T66 . 1 . .03 3 . 8" Pipe . 5' - 4" . .01 4 . 8": 6": 3" Tee . 1 . .52 5 e 3" P1P. e 3' “ 0” e 034 6 e 3" 90 Bear.” Band 0 1 e 050 7 e 3" P1P. e 4" e .04 8 e 3" Gate V0116 e 1 e e05 9 e 3" Pipe e 4" e e04 lO . 3" rultiport valve . l . 5.00 11 e 5" Pipe 0 6' . 8" e 073 12 . 3". 90 Degree Bend . l . .50 13 a 3" Pipe e 1' - 1°”. .20 1‘ e 2"! 3" or1r1°° Plate 0 1 e 5.05 16 e 5" P1P. e 1' ‘ 10”. 020 16 . 3" 90 Degree Bend . l . .50 17 e 5" Pipe 0 4" e .04 18 o 80ft0n1fl8 Tank 0 1 e 3099 19 . 3" Pipe . 6" . .04 20 e 3”: 2 1/2": 5" Tee 0 1 e 1e50 21 o 3" P1P. e 1' ’ 6" e .17 22 e ““1‘1p0r‘ Valve 0 1 e 5.00 25 . 5" Pipe . a" . .04 24 . 3" 90 Degree Bend . 2 . 1.00 25 p 3' P1P. e 9" 0 e08 28 e 3": 4”: 3” T0. e 1 e 1016 27 . 4" Pipe . 5' - 2" . .59 28 e 4": 4": 5” TO. 0 1 e 059 29 . 5" Pipe . 2' - 2" . .02 30 . 4'1 5"! 6" Tee . 1 . .16 31 . 6” Gate Val'. . 1 . .01 52. . 6": 8": 4" Tee . 1 . .Ol ( Tank No. 5 ) 1 . 8": 8"! 6" 90 Bend . 1 . .02 2 . 3"! 5"! 8" T60 . 1 . .03 5 o 8" P1P. o 5' " 4" o 001 4 e 8"! 6": 3" T6. e 1 e .03 5 o 6" P1P. e 12fl e 001 6 . 6": 5": 6" Tee . l . .53 7 e 3” Pipe 0 1' - 4" e 014 8 . 3" 90 Degree Bend . 1 . .50 9 e 3" P1P. e 5' - 3" e .36 10 . a" 90 Degree Bend . l . .50 Number. Item . Amount . V g"/ 23 O Q 0 O O 0 11 e 5” Pip. e 5' "’ 6" 0 e39 12 e 3"' Gate Valve e 1 e e05 13 O 3" Pip. . 4" o ‘004 14 . 5" Multiport Valve . 1 . 5.00 15 e 3" Pipe e 6' - 8” e ‘e73 16 . 3" 90 Degree Bend . ' 1 . .50 17 . 5" Pipe . 1' - 10". .20 18 . 2"x 5" Orifice Plate . . 5.05 19 . 5" Pipe . 1' - 10”. .20 20 . 5" 90 Degree Bend . 1 1 .50 21 . 3" Pipe . 4" . .04 22 . Softening Tank . 1 . 5.99 23 e 3” P1P. e 6" e .04 24 e 3": 2 1/2”! 3" TBS e 1 e 1.50 25 . 5" Pipe . 1' - 6” . .17 26 . Multiport Valve . 1 . ‘5.00 27 e 5" P1P. e 6" e e04 28 . 5” 90 Degree Bend . 2 . 1.00 29 . 5" Pipe . 9" . .08 50 . 3" 90 Degree Bend . 1 . .50 31 e 3” Pipe e 6” e e04 52 . 4”: 4”: 5" Tee . 1 . 0.39 33 e 5' P1P. e 2' * 2" e e02 3‘ e 4': 6": 5" T8. t‘ 1 e .16 35 e 6" Gate VBIVQ e 1 e e01 36 e 6”: a": 4" To. e 1 e e01 ( Tank NOe 4 ) 1 . B": 8": 6' 90 Bend . 1 c .02 2 e 8"! 3.x 8" T60 e 1 e e03 3 e 8" P1P. e 5. ’ 4" e e01 4 . 8": 6": 5" Tee . 1 . .03 5 e 6" P1P. e 12" e e01 6 . 6”: 5"x 6" Tee . 1 . .09 7 e 6" ‘5 DCSIGO Bend e l e e02 8 e 6" P1P. e 1' “ 6" e e01 9 . 6" 45 Degree Bend . 1 . .02 10 . 6” Pipe . 19' - 0" . .07 11 . ("x 4": 6" Tee . 1 . .22 12 e 4” Pipe e 2' - 0" e ‘e06 13 e 4” 90 DCQrCG Bend e 1 e e16 14 . 5": 5": 4" Tee . 1 . .66 15 . 3' Pipe ' . 6' - 0" . .67 16 . 5" 90 Degree Bend . 1 . .52 1, e 3” P1P. e 3' - 4” e e3 "“‘”1e . e" 90 Degree Bend . 1 . .50 N“.b.ro Item, 0 o ‘ O O Q 19 . 3" Pipe . 4" . .04 20 . 3” Gate Valve . 1 . .05 21 . 3" Pipe . . 5" . .04 28 o kultiport valve 0 1 0 500 23 o 3" P1P. o 6' ¢ 8” o .73 24 . 6” 90 degree Bend . 1 . .50 86 O 3" Pipe 0 1' "’ 10". 020 26 . 2"13" Orifice Plate . 1 y . 6.05 87 . 5" Pip. . 1' ~ 10". .20 28 . 3” 90 degreo Bend . 1 . .50 89 o 3' Pig. 0 4" o 00‘ 30 . Sotten n3 Tank . 1 . 3.99 31 o 3“ P1 . o 6" o 00‘ 32 . 5” x 2 "x 3" To. . 1 I 1.60 33 o 3" P1P. o 1. . 6' o 01, 3‘ o EHltiport V317. o 1 o 5000 5: . 3" mp. . 6" . .04 36 o 3” 9° DOEIC. 30nd o 2 o 1.00 37 o 3” P1P. o 9" o .08 38 o 3" 90 Dears. Bend 0 1 o .50 39 a 3" P1P. o 4' - 1" 0 0‘5 ‘0 o 3"! 3": 4" T3. 0 1 a 1016 ‘1 0 ‘" P1P. o 2' ‘ 9" o 008 ‘2 0 ‘n 90 DOE’.’ 3.3“ o 1 o .15 43 0 ‘fl P1P. o 6" o .02 44 . 4” 90 Degree Bend . 1 . .16 ‘5 I ‘R P1P. o 17. " 6" 0 0‘7 46 . 4" 90 Degreo Bond . 1 . .16 ‘7 0 ‘" P1P. o 2' ‘ 9' o 008 ‘8 o 4' 9° DBSIO. Bond a 1 o 016 49 o ‘l P1P. o 9" o 008 50 . 4”! 6"! 5" Tee . 1 . .09 61 . 6' Gut. vulvo . 1 . .01 68 . 6”: 8": 4" Too . 1 . .01 (Tank N00 5) 1 . 8”: 8": 6" 90 Bond . 1 . .02 8 . 8": 3": 8" Too . 1 . .03 3 a 8" P1P. o 5. ‘ 4' o .01 4 . 8": 6': 3" To. . 1 . .03 5 o 5' Pip. o 12" o .01 6 o 6': 3": 6" TO. 0 1 o .09 7 . 6" 46 Dogroo Bond . 1 . .02 8 o 6” P1P. 0 1. ' 6" o 001 9 o 6" 45 DBgI.‘ Bond 0 1 o .08 10 o 6' P1P. o 19' ' 0' o 007 11 . 4": 4": 6' Too . 1 . .22 Number. Item . Amount . v-g. / 29 L L O ___K O O O 12 e ‘" Pipe 0 2"0” 9 .06 13 . 4' 90 Degree Bend . 1 . .16 14 . 5": 3”: 4" Tee . 1 . .66 15 . 3” 90 Degree Bend . 1 . .50 16 . 3" Pipe . 5'-4" . .30 17 .~ 3” 90 Degree Bend . 1 . .50 18 e 5" Pipe e 4:" e 00‘ 19 . 3” Gate Valve . 1 . .05 so .1 0" Pipe . 5" . .04 81 e Militiport Valve e 1 e 5 e 00 22 . 3" Pipe . 6'-8" . .73 23 .- 3" 90 Degree Bend . 1 . .50 34 e 3” Pipe e 1' ‘10” o o 20 25 . 2”: 3" Orifice Plate . 1 . 5.05 26 e' 3" Pipe e 1"”10" e em 87 e 3" 90 D6308 Bend e 1 e e50 88 e 3" Pipe . 4:” 9 e0‘ 2 . Softening Tank . 1 . 3.99 30 .- 3" Pipe . 6” . .04 31 e- 5": 2%”1 3' TO. e 1 e 1e50 32 e 3" pipB e 1"6” 9 .1, 33 . Multiport valve ' . 1 . 5.00 34 p 3" Pipe 9 6" e .04 36 . 3" 90 Degree Bend . 8 . 1.00 30 . 8" Pipe . 9" . .08 37 . 3” 90 Degree Bend . 1 . .50 38 . 3" Pipe . 1'~10' . .20 39 . 3": 3": 4" Tee . 1 . 1.16 to e ‘" P1p° e 2"”9" e e08 41 . 4" 90 Degree Bend . 1 . .16 42 . 4” Pipe . 6" . .02 43 . 4" 90 Degree Bend . 1 . .16 44 . 4" Pipe . 17'~6" . .47 45 . 4” 90 Degree Bend . 1 . .16 46 e 4” Pipe e 2"9" e e08 47 . 4" 90 Degree Bend . 1 . .16 48 e 4” P1P. ‘ e 9" 0 .08 49, . 4': 6'2 5" Tee . 1 . .09 50 e 6” Gate Valve e 1 e e01 51 e 6"! 8": ‘9! T.. e 1 e e01 ( Tank No. 6 ) Humbore Item e AmOunt e V 2n I 28 O A 0 Q m 1 e 8”: 8"1 6" 9° Bend e 1 e .05 2 . 6" Gate Valve . 1 . .01 3 e 6” Pipe e 3'-6~ 0 .06 4 . 6” 90 Degree Bend . 1 . .03 5 e 6" to 4" RedUOCr e 1 e e16 6 . 4" Pipe . 10'-7" . .29 7 . 4" 90 Degree Bend . 1 . .16 8 e 4" P1P. e 17"0. e e46 9 e 4" 90 Degree Bend e 1 e e16 10 . 4" Pipe . 7'-6" . .21 11 e 4" 90 DBEICO Bend e 1 e e16 12 . 4” Pipe . 4” . '.01 13 . 4" Multiport Valve . 1 . 5.00 14 e 4” P1P. e 7"0" e e19 15 .' 4" 90 Degree Bend . 1 . .16 16 e 4" Pip. e 3'*6" e e10 17 . 4" 90 Degree Bend . 1 . .16 18 e 4” P1P. e 6" e e01 19 . Softening Tank . 1 . 3.99 20 e 4' P1P. e 6" e e01 21 e 4”: 4"! 4" TOO e 1 e e48 22 . 4” P1 e . 13” . .13 83 e ‘" Muitiport Valve e 1 e 5.00 24 . 3" Pipe . 7" . .06 25 . Permutit Meter . 1 . 26 . 3" Pipe . 4" . .03 27 . 3' 90 Degree Bend . 2 . 1.00 28 . 3": 5": 4" Tee . 1 . 1.16 2, e 4” 90 Degree Bend e 1 e e16 30 e 4” P1p° e 3.’O' e e08 31 e 4" 90 chreo Bend e 1 e e16 32 . 4' Pipe . 6" . .01 33 . 4” 90 Degree Bend . 1 . .16 34 e 4" P1P. e 18'*8" e e50 35 . 4" 90 Degree Bend . 1 . .16 36 . 4” Pipe . 3‘o0" . .08 37 e 4” 90 Dagrae Band e 1 e e16 38 . 4” Gate Valve . 1 . .03 39 . 4" Pipe . 12" . .03 40 . 4" 90 Degree Bend . 1 . .16 ‘1 e 6"1 8”: 4" TO. e 1 e e33 ‘ Tank.N°e 7 ) Ember. It... . Amount . v §./ 23 O Q J e e e 1 e 8": 8"! 6" 90 Bond e 1 e e08 2 . a": 3": 0" Tee . 1 . .03 3 e 8" Pipe 0 5'”4" 0 e01 ‘ e 8": 6": 3" T.‘ e 1 e e03 5 e 6" Pip. e 13" e e01 6 e 6"! 3"} 6” TO. e l e e09 7 . 6" 43 Degree Bend . 1 . .02 e . 6" Pipe . 1'-e" . .01 9 e 6" 45 Degree 30nd e 1 e e02 10 e 6” Pip. e 19"0" e e07 11 e 4": 4"x 6" T9. e 1 e e22 12 e 4" Pipe e 2"2" 0 e06 13 . 4" 90 Degree Bend . 1 . .16 14 e 4” Pipe e 6” e .02 15 e 3": 3"1 4" T80 e l e e82 16 ; 5" Pipe e 4"1” 0 e45 17 e 3" Gate VfllVO e l e e05 18 . 3" 90 Degree Bend . 1 . .50 19 e 3" Pipe e 3'-3" e e36 20 . 3": 2%": 3" Tee . 1 . 1.50 21 e 3" Fife e 1"2" e e14 B e r" Mu.tip0rt V3170 e l e 5e00 25 . 3" Pipe . 6'~7" . .73 2 . 3” 90 Degree Bend . 1 . .50 2 e 3" Pipe 0 5"10" 0 e42 2 e 3” 90 Degr.a Bend e l e e50 2 e 3" Pipe e 6" e .05 2 . Iron Removal Tank . 1 . 2.64 2 e 5" Pipe e C" e e04 '30 . 3": 2%": 3" Tee . l . 1.50 31 e 3" Pipe e 1"5" e e17 32 e 3” Zultipert V019. e 1 e 5.00 33 . 3" Pipe . 6" . .04 34 . 3" 90 Degree Lend . 2 . 1.00 55 . 3* Pipe . 1'-3" . .14 36 . 3" 90 Degree Bend . 1 . .30 :57 e ' " Pipe 0 4"5” 9 050 38 e 3" 90 DO‘rea Bend e 1 e 050 39 . 3": 3": 4" Tee . 1 . 1.16 40 . 4" 90 Degree Bend . 1 . .16 41 . 4" Pipe . 3'-0" . .08 42- . 4” 90 Degree Bend . 1 . .16 ‘3 e 4" Pipe. e 6" e e01 4‘ e 4" 95 D‘srae Bend e 1 e e16 45 . 4" Pipe e 13"8"' e e50 46 . 4” 90 Degree Bend . 1 . .16 47 e 4” Pipe e 5’-0' e .08 48 e 4" 90 Dogrie Bend e 1 e e16 ‘9 . 4" Gate V3170 . 1 . .03 50 . 4" Pipe . 12" . .03 51 . 4" 90 Degree Bend . 1 . .16 53 . 6"! 8": 4" T30 . 1 . .33 For the fittings, as elbows, tees, reducers, and valves, Table IVh"Special Losses of Eeed in Terms of VE/zg",fl drauliee. Schoeder and Lesson, p.313, was need. All velocity heads were then converted to Vin/2g by these conversion factors: V§.,/2g as .02 Vgn/Eg Vin/28 . .0625 vgn/Zg v2 /2r = 130 v2 /2 v2’ [2a a 516 v2 /2 5!! E: 0 3n 8 4n 0 e 30 g The number of velocity heads lost thru the tanks were computed as follows: Loss of Head in Send from.Hazen'e formula V==cZ Mdbam CZ