Page 349 - Wastewater Solids Incineration Systems
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310         Wastewater Solids Incineration Systems







































        FIGURE C.1  Westerly WWTP incinerator process flow stream (I.D.   induced draft).

                        Figure C.1 shows the components of Westerly’s MHF system and Table C.2 pro-
                    vides all pertinent details for NEORSD.

                    3.1 Natural Gas

                    Natural gas used by the incineration process is metered.
                                         64 792 MCF   $6.18/MCF   $400,415
                                                                   3
                                              MCF   1000 cu ft (28 m )
                    3.2 Electricity
                    Electricity used by the incinerator process is not separately metered. However, the
                    total horsepower of the incineration equipment is known as are the number of hours
                    per year in operation (see Table C.3).
                      275 total hp   0.746 kW/hp   6694 hours of operation   $0.060/kWh   $82,396
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