A new landfill has an ultimate fill capacity (i.e. design volume) of 5.5 x 107 ft³ for a population of150,000. The community's per capita generation rate is 5 lbm/day, the

expected landfill load factor(LF) is 4.5 and the in-place compacted density is estimated to be 900 lbm/yd³. Assume a 50% recycling rate and estimate landfill operating life in years b) State one advantage and one disadvantage of methane generated by landfills c) For large-scale MSW (municipal solid waste) management in the United States, brieflyexplain why landfilling is preferred over incineration