9-17. The local waste management agency has proposed to set up a waste combustion facility next to the existing landfill to maximize the life span of the landfill. Given the following information, determine how much the life span of the landfill is increased by the combustion. (a) Composition of MSW as given in column 1 of Table 3-4. (b) Estimated landfill capacity remaining =300,000yd3 (c) Capacity of combustion facility =50 ton waste /h (d) Effective on-line combustion time per day =22h (e) Initial specific weight of waste =287lb/yd3 (f) Final specific weight of waste (MSW and ash) in landfill =1200lb/yd3