Akron Water Pollution Control Station No Feasible Alternative

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4-8 Alternative 5A – 170 MGD MBR ..............................................Following Page 4-35 4-9 Alternative 5B – 210 MGD MBR ..............................................Following Page 4-35 4-10 WPCS Storage Alternative – 20/40 MG...................................Following Page 4-35 4-11 Enhanced High-Rate Clarification Alternative..........................Following Page 4-35 Page iv
Akron Water Pollution Control No Feasible Alternative (NFA) ABBREVIATIONS/SYMBOLS A.B. aeration basin ADF average daily flow & and ASCE American Society of Civil Engineers BOD5 biochemical oxygen demand CBOD5 carbonaceous biochemical oxygen demand cf cubic feet cfs cubic feet per second CSO combined sewer overlfow CMF compressed media filtration DCS distributed control system DO dissolved oxygen $ dollars EHRC enhanced high-rate clarification = equals ‘/ft. foot/feet fps feet per second FST final settling tank gpm gallons per minute > greater than hr. hour hp horsepower HRT high-rate treatment “ inch(es) lbs./day pounds per day LCI Little Cuyahoga Interceptor < less than LTCP Long-Term Control Plan max. maximum MBR membrane bioreactor MCRT mean cell residence time mg/l milligram per liter MG million gallons MGD million gallons per day min. minimum ml. milliliter Page v
Page 1 and 2: City of Akron Akron Water Pollution
Page 3 and 4: Akron Water Pollution Control Stati
Page 5: TABLES Akron Water Pollution Contro
Page 9 and 10: SECTION 1 EXECUTIVE SUMMARY The pur
Page 11 and 12: SECTION 2 INTRODUCTION 2.1. NFA Rep
Page 13 and 14: 150 MGD due to their hydraulics. Th
Page 15 and 16: SECTION 3 EXISTING WPCS CAPABILITIE
Page 17 and 18: Month Raw Influent Flow Table 3-2 2
Page 19 and 20: Table 3-3 (con’t) Akron WPCS Exis
Page 21 and 22: 3.3. Secondary Treatment Limitation
Page 23 and 24: The hydraulic evaluation prepared a
Page 25 and 26: • final settling tank influent di
Page 27 and 28: • The simulated 120 MGD test leve
Page 29 and 30: Table 3-4 Secondary Treatment Facil
Page 33 and 34: SECTION 4 EVALUATION OF ALTERNATIVE
Page 35 and 36: 5. Summarize high-rate treatment pi
Page 37 and 38: Table 4-4 Akron WPCS Average Influe
Page 39 and 40: For these reasons the Group 2 Alter
Page 41 and 42: effluent pumping and fine screening
Page 43 and 44: The 3-year solids production rate a
Page 45 and 46: The 120 MGD alternative requires fu
Page 47 and 48: The City of Akron has previously pe
Page 49 and 50: Type of Cost Capital O&M Present Wo
Page 51 and 52: ed), exhaust fans, and associated d
Page 53 and 54: 6. For each Rack, the minimum perfo
Page 55 and 56: Rack # CBOD Present Worth ($) Table
Page 57 and 58:
CSO Control Technology Tunnels Tabl
Page 59 and 60:
• 20 MG of storage located near p
Page 61 and 62:
ecirculated back to the reactor tan
Page 63 and 64:
Table 4-13 HRT Design/Operational C
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is its chemical coagulant and polym
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Secondary Treatment Alternative "No
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Final Settling Tanks Qp = 110 MGD 1
Page 71 and 72:
High Rate Treatment Qp = 110 MGD (B
Page 73 and 74:
Membrane Filters Qp = 110 MGD (Bypa
Page 75 and 76:
Modify Aeration Basins with MBR Qp
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10 MG Storage 10 MG Storage 10 MG S
Page 79 and 80:
SECTION 5 ALTERNATIVE SCREENING 5.1
Page 81 and 82:
For the cost and non-cost reasons n
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enefit analysis, it is recommended
Page 85 and 86:
5.3. Summary of Recommended Alterna
Page 87 and 88:
SECTION 7 BIBLIOGRAPHY 1. The Akron
Page 89 and 90:
ATTORNEY/CLIENT PRIVILEGE ATTORNEY
Page 91 and 92:
Akron Water Pollution Control Stati
Page 93 and 94:
cfs cubic feet per second DO dissol
Page 95 and 96:
SECTION 2 INTRODUCTION The Akron Wa
Page 97 and 98:
4. The Stress Test proceeded as fol
Page 99 and 100:
SECTION 4 STRESS TEST TRIALS 4.1. S
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4.2. Simulated 144 MGD Test The pro
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Based on observations and results o
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phosphorus. The apparent ineffectiv
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Concentration (mg/l) 10.0 9.0 8.0 7
Page 109 and 110:
TABLE 4-2 AKRON WPCS STRESS TEST Si
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
SECTION 5 CONCLUSIONS AND RECOMMEND
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Appendix A City-Provided WPCS Data
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AKRON WPCS 2006 120 MGD STRESS TEST
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20-Nov-06 # 1 ML # 2 ML # 1 RAS # 2
Page 123 and 124:
20-Nov-06 # 1 ML # 2 ML # 1 RAS # 2
Page 125 and 126:
20-Nov-06 # 1 ML # 2 ML # 1 RAS # 2
Page 127 and 128:
AKRON WPC 2006 144 MGD STRESS TEST
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28-Nov-06 # 1 ML # 2 ML # 1 RAS # 2
Page 131 and 132:
28-Nov-06 # 1 ML # 2 ML # 1 RAS # 2
Page 133 and 134:
28-Nov-06 # 1 ML # 2 ML # 1 RAS # 2
Page 135 and 136:
AKRON WPC 2006 120/132 MGD STRESS T
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5-Dec-06 # 1 ML # 2 ML # 1 RAS # 2
Page 139:
5-Dec-06 # 1 ML # 2 ML # 1 RAS # 2
Page 235 and 236:
Cost Development Guidelines Appendi
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ALTERNATIVE 1C - 10 MGD SINGLE UNIT
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ALTERNATIVE 1E - 100 MGD UNITS PROB
Page 241 and 242:
APPENDIX C Secondary Treatment Pres
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annually. The effort for the 40 MG
Page 245 and 246:
Akron WPCS NFA Alternative 1 -Secon
Page 247 and 248:
Akron WPCS NFA Alternative 1 -Secon
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Akron WPCS NFA Alternative 1A 20 MG
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Akron WPCS NFA Alternative 1A 20 MG
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Akron WPCS NFA Alternative 1B 40 MG
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Akron WPCS NFA Alternative 1B 40 MG
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Akron WPCS NFA Alternative 1C 10 MG
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Akron WPCS NFA Alternative 1C 10 MG
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Akron WPCS NFA Alternative 1D 50 MG
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Akron WPCS NFA Alternative 1D 50 MG
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Akron WPCS NFA Alternative 1E 100 M
Page 267 and 268:
Akron WPCS NFA Alternative 1E 100 M
Page 269 and 270:
Akron WPCS NFA Alternative 1F 150 M
Page 271:
Akron WPCS NFA Alternative 1F 150 M
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Akron Water Pollution Control Station No Feasible Alternative

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