Recycling Treated Municipal Wastewater for Industrial Water Use

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Section 3 Inventory of Major WWTPs and Potential Industrial Reuse Demands Craddock Consulting Engineers 3-41 In Association with CDM & James Crook WWReuseTM1_Sec 3_final.doc Factors Influencing Potential for Industrial Reuse The Western Lake Superior watershed has similar water availability indices as described for the Rainy River watershed. The northern half is in Area 6 and the south half is in Area 4. Both of these areas have limited bedrock aquifers. The north half has limited water supplies in all three aquifer zones, while the south half has productive surifical aquifers and less productive buried sand aquifers. The north half of the watershed is the least prone to ground water contamination, while the south half has some pockets of medium to highest susceptibility of contamination. Limitations on pollutant discharges will continue to be a focus for this watershed. This region of Minnesota is a treasured recreation area and also provides resources for the state’s mining and forest industries. The Lake Superior Basin Plan, completed in 2004, provides recommendations for policy and initiatives to enhance and protect this watershed and the industries that contribute to the economic vitality of the area. The partnerships and mandates associated with the Great Lakes Water Quality Agreement and related programs are expected to continue to influence the management of the watershed in response to the region’s growth. One example is the Zero Discharge Demonstration Program, which is devoted to the goal of zero discharge of nine persistent bioaccumulative toxic substances. 3.3 Metro Area Inventory The range of industries in the Minneapolis/St. Paul metro area provides a perspective on the full range of industries that can be present in a community. Unlike the analysis of industrial demands outside the metro area, the inventory for the metro area includes industries that use a municipal potable supply and/or withdraw from ground or surface waters at lower thresholds than required for an appropriations permit (1 mgy or 100,000 gpd). The Met Council monitors all industries that discharge to the metro area regional sewer system. The database for the industrial users permitted by the Met Council was used to identify the industry, the type of industry, the facility location, and the amount of water that enters the facility. Some industrial users may consume most of this supply and others may discharge all of it to the sewer system. The water use data evaluated for this project is the industrial water demand – what comes into a facility. Metro Area Overview The industrial customer inventory for the metro area is represented by a diversity of industries and a prevalence of potential industrial reuse customers along the river corridors. Figure 3.18 presents the industries with water permits (MDNR appropriation permits) and Figure 3.19a locates the larger set of industries in the metro area, represented by the Met Council’s Industrial User permit program.
Section 3 Inventory of Major WWTPs and Potential Industrial Reuse Demands The Met Council database provides for a more detailed categorization of the industries, as shown in the legend for the Figure 3.19a. These industry categories are documented with subcategories in Appendix E. Figure 3.19a also identifies if the industry obtains its water from a municipal (potable) source or another source, which typically would be through a DNR appropriations permit. The other source could be ground water (well), surface water or a combination of both. The municipal designation was rolled up to include any industry that uses a municipal supply. An industry could also have another supply through a DNR appropriations permit. The Met Council database includes any discharger to the sewer system and the term ‘industrial discharger’ covers a wide designation of industries. Some dischargers use little water, such as landfill leachate systems, and mainly collect and treat water for discharge. The inventory assembled for this project includes only those industry categories that have a water demand. The Met Council Industrial Dischargers Permit database does not include all industries in the area, because some have their own treatment systems and discharge permits. The industries in the metro area discharging to the sewer system, as shown in Figure 3.19b, had a combined water demand of 65 mgd in 2005. The largest water users were food industries, at 15 mgd, followed by the metal products industries at 10 mgd. Water used in the electronic products and paper/packaging industries and for power/steam/air conditioning and health care facilities, all had category totals over 5 mgd. Building Materials Chemical Products Electronic Products Food Products Health Care Laundry Medical Products Metal Products Other Paper/Packaging Photo/Printed Products Power/Steam/AC Public Facilities Transportation 1.0 1.2 1.7 1.6 1.4 2.6 3.4 2.1 Figure 3.19b. Metro Area Industrial Water Demand, 2005 Source: Met Council Industrial Discharge Permit Program, 2005 3-42 Craddock Consulting Engineers In Association with CDM & James Crook 5.5 5.9 6.4 7.5 10.6 14.7 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 Water Demand/Use, mgd WWReuseTM1_Sec 3_final.doc
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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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Page 200 and 201: Water Use Code Categories Minnesota
Page 202 and 203: Minnesota Water Use for All Categor
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Page 206 and 207: Minnesota Water Use, 2000-2004 - St
Page 208 and 209: Minnesota Water Use in 2004 (withou
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Page 212 and 213: UseCode by Year Minnesota Power Gen
Page 214 and 215: Water Use (MGD) Water Use (MGD) 350
Page 216 and 217: Minnesota Industrial Processing Fac
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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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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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