You are here:
BAGHOUSE EFFICIENCY ON A MULTIPLE HEARTH INCINERATOR BURNING SEWAGE SLUDGE
Citation:
Adams, R., L. Keller, E. Robb, M. Vancil, AND J. Farrell. BAGHOUSE EFFICIENCY ON A MULTIPLE HEARTH INCINERATOR BURNING SEWAGE SLUDGE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-89/016 (NTIS PB89190318), 1989.
Description:
A pilot-scale fabric filter (baghouse) was evaluated for its removal performance for 23 metals and for sulfur as well as for total particles when fitted to a multiple hearth incinerator burning sewage sludge. The small scale baghouse was installed to take a slipstream of about three percent of the total incinerator emissions. Particle size fractions were collected from the gas streams entering and leaving the baghouse. Each particle size fraction was analyzed for the 24 elemental species and baghouse performance was evaluated for overall removal efficiency, size fraction removal efficiency, and for selective removal of specific metals. Total concentrations of each element in the controlled emission stream was determined as well as the proportionate concentrations of species in the solid and volatile states. Concentrations of each metal in the emission stream was compared with the concentration in a sludge residue. To obtain comparisons of baghouse performance with a more typical emission control device, the performance of the incinerator's full scale wet scrubber was also evaluated. The efficiency of the baghouse for collection of total particles was 99 percent compared to the 94 percent for the wet scrubber system. Its collection efficiency was superior for cadmium but the wet scrubber was much more efficient for collection of sulfur.