Recycling Treated Municipal Wastewater for Industrial Water Use

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TM4: WWTP Effluent Quality Recycling Treated Municipal Wastewater for Industrial Water Use Ammonia (NH3) Excess ammonia in reclaimed water is a concern for increased corrosion rates, particularly with cooling water applications. Ammonia also promotes biological growth and related biofouling and interferes with disinfection. Figure 22 presents the frequency of occurrence of NH3 concentration in the effluent of all Minnesota WWTPs. Similar information is shown in Figure 23 for WWTPs with design capacities greater than 1 mgd. The variability of effluent NH3 is also characterized for the following ranges: < 1 mg/L, 1-5 mg/L, 5-10 mg/L, and >10 mg/L. The average WWTP effluent NH3 concentrations are depicted by location and facility capacity in Figure 24 and further detailed in Figures 25-28. Approximately 15% of Minnesota’s WWTPs have nitrogen removal processes, indicated by effluent NH3 concentrations less than 5 mg/L. This accounts for 600 mgd of the total design capacity in the state. This also assumes that WWTPs that do not monitor for ammonia, do not nitrify. Approximately 80% of Minnesota’s WWTPs do not measure ammonia. Of those facilities monitoring for ammonia, 16 produce an effluent with a concentration greater than 5 mg/L. 18 Craddock Consulting Engineers In Association with CDM & James Crook TM4-WWTP Eff Quality_0707.doc
Frequency of Occurrence, % Frequency of Occurrence, % 100.0% 80.0% 60.0% 40.0% 20.0% 0.0% 100.0% 80.0% 60.0% 40.0% 20.0% TM4: WWTP Effluent Quality Recycling Treated Municipal Wastewater for Industrial Water Use Craddock Consulting Engineers 19 In Association with CDM & James Crook TM4-WWTP Eff Quality_0707.doc 0.00 5.00 10.00 15.00 20.00 25.00 Annual Average Concentration (mg/L) Figure 22. Effluent Ammonia of Municipal WWTPs in Minnesota 0.0% 0.00 5.00 10.00 15.00 20.00 25.00 Annual Average Concentration (mg/L) Figure 23. Effluent Ammonia of Municipal WWTPs Greater than 1 mgd in Minnesota
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Acknowledgements This study was con
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Contents Recycling Treated Municipa
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Contents Recycling Treated Municipa
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Executive Summary Vision Executive
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Section 1: Introduction 1.1 Project
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Table 1.2. Water Use in Minnesota,
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Section 1: Introduction Recycling T
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1.5 Summary Section 1: Introduction
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Section 2: Recycled Wastewater Dema
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Figure 2.9. Ground Water Contaminat
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Table 2.8. Ethanol Plant Capacity a
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2.7 References Section 2: Recycled
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Section 3: Recycled Wastewater Syst
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Water Quality Overview The total co
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Industrial Water Quality Concerns S
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Emerging Contaminants of Concern Se
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3.4 Storage and Transmission Overvi
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Cost by Standard Industry Categorie
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Costs and Planning Considerations S
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Section 4: Implementation Considera
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Economic Incentives and Risk Assess
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Section 5: Summary and Potential Ne
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Long-Term Vision Section 5: Summary
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Exhibit A: California Water Recycli
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Metropolitan Council Recycling Trea
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Contents Section 1 - Introduction C
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Craddock Consulting Engineers In As
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Section 1 Introduction Craddock Con
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Craddock Consulting Engineers 2-1 I
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Section 2 Implementation Considerat
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Table 2.4. Examples of State Water
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Craddock Consulting Engineers 3-1 I
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Section 3 Inventory of Major WWTPs
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Figure 3.6. Industrial Reuse Custom
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Figure 3.7b. Ground Water Availabil
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") Figure 3.8c. Cedar River Watersh
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") ") ") ") Figure 3.10c. Lower Mis
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Figure 3.12c. Mississippi River - H
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Figure 3.14b. Rainy River Watershed
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") Figure 3.16c. St. Croix River Wa
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Figure 3.18 Metro Area Industrial R
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G G Flying Cloud Dr !! G! G Figure
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Figure 3.22. Rogers WWTP - Industri
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G G G! Dodd Rd GG Figure 3.24. Rose
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G Figure 3.26. Hastings WWTP - Indu
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State Hwy 36 ! Figure 3.28. St. Cro
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Water Use Code Categories Minnesota
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Minnesota Water Use for All Categor
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Air Conditioning 0.2% Waterworks 15
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Minnesota Water Use, 2000-2004 - St
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Minnesota Water Use in 2004 (withou
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Minnesota Water Use in 2000 (withou
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UseCode by Year Minnesota Power Gen
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Water Use (MGD) Water Use (MGD) 350
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Minnesota Industrial Processing Fac
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Minnesota Industrial Processing Fac
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Water Use (MGD) Water Use (MGD) 120
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Water Use (MGD) Water Use (MGD) 13.
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Overview There are no federal regul
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Appendix B Status of Water Reuse Re
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Table 4. Examples of State Water Re
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Setback Distances Appendix B Status
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WATER USE (MGD) WATER USE (MGD) 3.5
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Table 3.9a. Industrial Water Use in
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Table 3.10a. Industrial Water Use i
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Table 3.10d. Industries in the Lowe
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WATER USE (MGD) WATER USE (MGD) 8 7
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Table 3.11d. Industries in the Minn
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Table 3.11d. Industries in the Minn
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WATER USE (MGD) WATER USE (MGD) 12
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Table 3.12c. Industries in the Miss
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Table 3.17c. Industries in the West
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MN Permit No Facility Minnesota Mun
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MN Permit No Facility Minnesota Mun
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Minnesota DNR Waters 2005 Ground-wa
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Permit No. Organization NAICS Code
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TM2: Sampling Plan and Results Recy
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Recommended Limits for Various Indu
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Exhibit B Blue Lake WWTP Sampling R
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MCES Blue Lake Plant Final Effluent
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Date Day of Wk MCES Blue Lake Plant
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MCES Empire Plant Final Effluent Sa
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Date Day of Wk 10/24/06 Tuesday 10/
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Exhibit D Metropolitan (Metro) WWTP
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MCES Metropolitan Plant Final Efflu
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Date Day of Wk 4/19/07 Thursday 4/2
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MCES Seneca Plant Final Effluent Sa
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Date Day of Wk 10/8/06 Sunday 10/9/
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Section 5 - Costs Table of Contents
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TM3: Recycled Wastewater System Com
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WWTP 1 - 2 - 3 - 4 - 5 - 1 Treatmen
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o Synthetic medium o Two-stage Surf
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Table 13 WATER REUSE SYSTEM COST OF
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Cost of Service, $/1000 gallon 1.00
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Cost of Service, $/1000 gallons 8.0
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Appendix A Water Reuse Regulatory E
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Table A-1. 2000 California Water Re
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California Department of Health Ser
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Other Media Type Filters Fuzzy Filt
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Appendix B TECHNICAL MEMORANDUM Rec
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Appendix B Reclaimed Water Transmis
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Exhibit 1 Transmission Main Cost To
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Pipe Installation Data (DR 18 PVC P
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Equipment Costs (with O&P) Item Des
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Water Reuse Pipe Line Construction
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Construction Unit Costs Item (2006
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Crew Costs (with O&P) St. Paul Pres
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Capital PROJECT Cost Curves for Rec
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Diam (in) Annual Average Day Flow A
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Diam (in) Annual Average Day Flow A
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Pipe Capital Project Cost, $ Millio
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Pipe Capital Project Cost, $/1000 g
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Annual Pipe Average Annual Velocity
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Pipe Capital Project Cost, $ Millio
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Exhibit 3 Water Reuse System O&M Co
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Diam (in) Annual Average Day Flow (
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Pumping Cost, $/1000 gallons 0.095
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Water Reuse System Estimated Cost o
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WATER REUSE SYSTEM COST OF SERVICE
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Appendix D-1 Water Reuse System Cos
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Water Reuse System Estimates of Pro
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Cost Curves as Basis for Tertiary 1
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Water Reuse System Estimated Cost o
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Appendix D-3 Water Reuse System Cos
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Page 549 and 550: Frequency of Occurrence, % Frequenc
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Page 587 and 588: Institutional Issues Topic Discussi
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Recycling Treated Wastewater For In
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Recycling Treated Wastewater For In
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Recycling Treated Municipal Wastewater for Industrial Water Use

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