Last year when I went to Disney, I had asked one of the cast members there and she said that she really wasnt sure but she thought there had to be over 50,000 people who work for disney. Walt Disney World Employees.
Methane is just used as a fuel for a gas turbine (can also be used to drive an internal combustion engine coupled to a generator). The turbine is coupled to a generator, which generates electricity.
This is called digested sludge. Methane gas is often used as an energy source at the City's wastewater treatment plants. The gas may be used in engines to produce electricity or directly drive plant equipment. Gas is also used in boilers to provide heat for digestion and plant-wide buildings.