Domestic Wastewater Treatment Mobilization Construction - AskTOP

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EM 1110-3-17211 May 84Table 8-1 . Surface Loading Rates for Primary Settling TanksPlant Design FlowmgdSurface Loading Rate l,Average Flowgpd/square footPeak Flow0-0 .01 300 5000 .01-0 .10 500 8000 .10-1 .00 600 1,0001 .00-10 .0 800 1,200above 10 .0 1,000 1,200ThI^eserates must be based on the effective areas (figures 8-1 and8-2) .b . Secondary sedimentation tanks . The sedimentation tanks shouldbe designed for the flow (average or peak) that requires the largestsurface area . Surface loading rates for secondary settling tanks aregiven in table 8-2 . Similar to primary tanks, the facility designswill normally include two tanks, each handling 50 percent of thedesign flow .Table 8-2 .Surface Loading Rates for-Secondary Sedimentation TanksPlant Design FlowmgdSurface Loading Ratel, gpd/square feetAverage FlowPeak Flow0-0 .01 100 2000 .01-0 .1 300 5000 .1-1 400 6001-10 500 700above 10 600 800IThese rates must be based on the effective areas (figures 8-1 and8-2) .c . General design considerations for all clarifiers .(1) Detention period . Detention time is commonly specified as2 .5 hours for primary tanks serving all types of plants, except whenpreceding an activated sludge system, where detention time is specifiedas 1 .5 hours . Selection of optimum detention time will depend on thetank depth and the overflow rate . For those Army installations wherethe contributing population is largely nonresident, the detentionperiod to be used in design of primary settling tanks is 2 hours, basedon the average hourly rate for the 8-hour period when the maximumnumber of personnel will be contributing to sewage flow .8-2
EM 1110-3-17211 May 8410080QWQW60NOTE : For any side-water depth .K QJV2NN9Z40Wa-200D 5 10 15 20 25 3TOTAL AREA OF RECTANGULAR CLARIFIER, SO FT X 1,000U . S . Army Corps of EngineersFIGURE 8-1EFFECTIVE SURFACE AREA ADJUSTMENTS FOR INLET-OUTLET LOSSESIN RECTANGULAR CLARIFIERS, L :W=4
Page 5: EM 1110-3-17211 May 84ParagraphPage
Page 10 and 11: Vadophil - Auction No. : 18Lot No.
Page 14 and 15: Table 3-1 . Evaluation of Wastewate
Page 17 and 18: Table 3-1 . Evaluation of Wastewate
Page 19 and 20: Table 3-2 . Approximate Performance
Page 21 and 22: EM 1110-3-17211 May 844-3 . Estimat
Page 23 and 24: EM 1110-3-17211 May 84c . Industria
Page 25 and 26: EM 1110-3-17211 May 84d . Treatment
Page 27 and 28: EM 1110-3-17211 May 84CHAPTER 5SELE
Page 29 and 30: EM 1110-3-17211 May 84zWJWWWU . S .
Page 31 and 32: EM 1110-3-17211 May 84CHAPTER 6FLOW
Page 33 and 34: EM 1110-3-17211 May 84WATER SURFACE
Page 35 and 36: EM 1110-3-17211 May 847-1 . General
Page 37 and 38: EM 1110-3-17211 May 84channel shoul
Page 39 and 40: EM 1110-3-17211 May 84_cfs = net ar
Page 41: EM 1110-3-17211 May 848-3 . Design
Page 45 and 46: EM 1110-3-17211 May 84(2) Weir rate
Page 47 and 48: EM 1110-3-17211 May 84Table 8-3 .Ty
Page 49 and 50: No Discharge DischargeSeries-parall
Page 51 and 52: EM 1110-3-17211 May 84dispersed oxy
Page 53 and 54: EM 1110-3-17211 May 84a . Inlet . I
Page 55 and 56: EM 1110-3-17211 May 84CHAPTER 10TRI
Page 57 and 58: SINGLE-STAGEREM 1110-3-1721 1 May 8
Page 59 and 60: EM 1110-3-17211 May 84(5) Periphera
Page 61 and 62: EM 1110-3-17211 May 84K20 = Treatab
Page 63 and 64: EM 1110-3-172'll May 84Table 10-3 .
Page 65 and 66: EM 1110-3-17211 May 84CHAPTER 11ACT
Page 67 and 68: EM 1110-3-17211 May 84RAW14ASTEWATE
Page 69 and 70: EM 1110-3-17211 May 84being wasted
Page 71 and 72: EM 1110-3-17211 May 84a . Air requi
Page 73 and 74: EM 1110-3-17211 May 84with unique,
Page 75 and 76: EM 1110-3-17211 May 84Contact Stabi
Page 77 and 78: EM 1110-3-17211 May 8412-3 . Sludge
Page 79 and 80: EM 1110-3-17211 May 84Table 12-1 .A
Page 81 and 82: EM 1110-3-17211 May 84Table 12-3 .H
Page 83 and 84: EM 1110-3-17211 May 84requirements
Page 85 and 86: EM 1110-3-1721 1 May 84b . Landfill
Page 87 and 88: EM 1110-3-1721 1 May 84Table 13-1 .
Page 89 and 90: EM 1110-3-17211 May 84(2) Inspectio
Page 91 and 92: EM 1110-3-17211 May 84CHAPTER 14SMA
Page 93 and 94:
EM 1110-3-17211 May 84CHAPTER 15SAF
Page 95 and 96:
EM 1110-3-17211 May 84g . A portabl
Page 97 and 98:
EM 1110- 3-17211 May 84Weight Remov
Page 99 and 100:
EM 1110-3-17211 May 84requirements
Page 101 and 102:
EM 1110-3-17211 May 84With a filter
Page 103 and 104:
E14 1110-3-17211 May 84Overall effi
Page 105 and 106:
EM 1110-3-17211 May 84therefore,0 .
Page 107 and 108:
EM 1110-3-17211 May 84Aeration requ
Page 109 and 110:
EM 1110- 3-17211 May 84Gas yield =
Page 111 and 112:
1110-3-172' .1'i1 May 8-4Pressure a
Page 113 and 114:
SM '11,10-1-472may 84be needed unde
Page 115 and 116:
EM 1110-3-17211 May 84APPENDIX BOXY
Page 117:
Ek'1110-i;, 3-;47211 May 84Chlorine
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