Guidance for Treatment of Airport Stormwater Containing Deicers (2013) / Chapter Skim
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Pages 55-61
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55 4.1 Overview of Alternatives Analysis Process The process for selecting one or more deicer treatment technologies typically flows through an alternatives analysis. An alternatives analysis is a systematic comparison of the relative merits, constraints, and costs of alternatives.
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56 Guidance for Treatment of Airport Stormwater Containing Deicers Site value outside of technology range Values from site-specific characterization criteria tables Values of treatment technology process selection criteria Screening process Site value within technology range Figure 14. Overview of treatment technology screening process.
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Selecting Deicer Treatment Technologies 57 Needed Treatment Capacity Governing Limits for Discharges Influent Stormwater Characteristics Airport Site Constraints Airport Operations and Management Constraints Activated Sludge Short-Listed Technology 1 Short-Listed Technology 2 Short-Listed Technology 3 Aerated Lagoons Anaerobic Fluidized Bed Distillation Mech Vapor Recompression Moving Bed Biofilm Reactor Reverse Osmosis Passive Facultative Tech POTW Discharge Private Recycling Emerging Technologies Aerated Gravel Beds CHARACTERIZATION DATA (Chapter 2) FACT SHEETS AND AIRPORT SUMMARIES (Appendix D)
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58 Guidance for Treatment of Airport Stormwater Containing Deicers 2. Review treatment technology fact sheets and airport summaries.
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Selecting Deicer Treatment Technologies 59 (see Chapter 5 for guidance on mass load determination and Chapter 6 for guidance on costs)
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60 Guidance for Treatment of Airport Stormwater Containing Deicers is made. The alternative with the strongest pros and weakest cons is preferred.
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Selecting Deicer Treatment Technologies 61 is used for any portion of the evaluation, sensitivity analyses are an excellent method for testing the significance and developing a level of confidence in the assumptions. In a sensitivity analysis, a series or range of values is assigned to parameters of interest, and the results of the calculations are reviewed to determine if the assumed values have a significant impact on the results.
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