Three methods to dispose of nonhazardous waste have been developed€”land application, fluidizedbed incineration, and private disposal contract. Use AW analysis and an associated scatter chart of AW versus i values to select the economically best alternative for interest rates between i = 6 % and i = 24% in 3% increments.

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Land -150,000 Contract Incineration First cost, $ AOC, $/year Salvage value, $ Life, years -900,000 -140,000 -60,000 300,000 -95,000 25,000 4