Recycling Treated Municipal Wastewater for Industrial Water Use

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Cost of Service, $/1000 gallons 8.00 7.00 6.00 5.00 4.00 3.00 2.00 1.00 0.00 Effluent Classification T=Tertiary; Levels 1-4 T1-Conventional T2-Membrane Filtration T3-Membrane Softening T4-Ion Exchange T4-GAC T4-UV 0.1 0.5 1 1.5 2 3 4 5 10 15 30 Reclaimed Water Flow/Demand, mgd Figure 14. Comparison of Treatment Costs in Addition to Base System Costs
TM3: Recycled Wastewater System Components and Costs Recycling Treated Municipal Wastewater for Industrial Water Use Table 17. Comparison of Treatment Costs for Different Reclaimed Water Quality Supplies* Cost of Service for Treatment, $/1000 gallons Tertiary 1 Tertiary 2 Tertiary 3 Tertiary 4 Flow/ Conven- Membrane Membrane Ion Demand, mgd tional Filtration Softening Exchange GAC UV 0.1 6.94 2.89 4.86 6.16 7.76 5.25 0.5 2.19 1.32 2.71 3.64 4.79 3.00 1 1.71 1.09 2.41 3.29 3.71 2.56 1.5 1.38 1.01 2.30 3.17 3.35 2.42 2 1.21 0.97 2.25 3.11 3.17 2.35 3 1.05 0.94 2.20 3.05 2.98 2.27 4 0.91 0.95 2.20 3.04 2.92 2.27 5 0.80 0.90 2.14 2.98 2.81 2.20 10 0.58 0.80 2.01 2.85 2.59 2.08 15 0.51 0.76 1.95 2.79 2.49 2.01 30 0.44 0.73 1.85 2.68 2.31 1.89 *In addition to water reuse base system costs 5.7 Cost Summary The cost analysis indicates that there are economically viable applications to provide treated wastewater effluent as a water supply to industries. The technology is available and as competition increases in the membrane market, more economical solutions can be anticipated to meet the specific water quality needs for a spectrum of industries in Minnesota. Treatment costs were estimated to range from $0.50/1000 gallons for larger supplies (30 mgd) with water quality suitable for cooling water to over $7.00/1000 gallons for smaller supplies (0.1 mgd) treated to meet stringent industrial water requirements. To provide a comparison of total system costs, a 5-mile transmission system was evaluated as shown in Figure 15. The cost to deliver reclaimed water, inclusive of transmission costs, and administrative/laboratory costs ranges from about $0.80 - $16.50/1000 gallons. The potential costs for a reclaimed water supply are shown in Table 18 for the general industry categories. Costs are listed for the treatment and total system costs of a 5mile transmission system. Appendices C (base system) and D (alternative water supplies) provide the detailed cost curves to identify specific costs for different flows and transmission distances. As expected, the range of costs is broad given the diversity of industries in these general industry categories and the variable water quality of WWTP effluent. The higher costs reflect treatment to achieve water quality concentrations lower than in the incoming water supply of most industries. Most industries treat their own permitted supply or potable supply to achieve the higher quality of Tertiary-4 class Craddock Consulting Engineers 41 In Association with CDM & James Crook TM3-Component&Costs_0707
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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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Metropolitan Council Recycling Trea
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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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Page 366 and 367: Metropolitan Council Recycling Trea
Page 368 and 369: Section 5 - Costs Table of Contents
Page 370 and 371: TM3: Recycled Wastewater System Com
Page 374 and 375: WWTP 1 - 2 - 3 - 4 - 5 - 1 Treatmen
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Page 403 and 404: Table 13 WATER REUSE SYSTEM COST OF
Page 409 and 410: Cost of Service, $/1000 gallon 1.00
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Page 423 and 424: Appendix A Water Reuse Regulatory E
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Page 431 and 432: Appendix B TECHNICAL MEMORANDUM Rec
Page 433 and 434: Appendix B Reclaimed Water Transmis
Page 435 and 436: Exhibit 1 Transmission Main Cost To
Page 437 and 438: Pipe Installation Data (DR 18 PVC P
Page 439 and 440: Equipment Costs (with O&P) Item Des
Page 441 and 442: Water Reuse Pipe Line Construction
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Page 447 and 448: Capital PROJECT Cost Curves for Rec
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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 of Service, $/1000 gallon 2.00
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Cost Curves as Basis for Tertiary 1
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Secondary Treatment Assumptions Sus
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Craddock Consulting Engineers 1 In
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TM4: WWTP Effluent Quality Recyclin
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Frequency of Occurrence, % Frequenc
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No. of Plants Total Permitting Desi
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Frequency of Occurrence, % Frequenc
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No. of Plants Total Permitting Desi
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Craddock Consulting Engineers 1 In
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1.0 Introduction This technical mem
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Exhibit A Regulatory Stakeholder Me
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MCES Recycling Treated Wastewater f
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Municipal Wastewater Reuse Regulato
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Exhibit B Industry Stakeholder Meet
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Recycling Treated Wastewater For In
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Institutional Issues Topic Discussi
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Institutional Issues Topic Discussi
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Exhibit C Broader Base Stakeholder
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Recycling Treated Municipal Wastewater for Industrial Water Use

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