Costs of Air Pollution Abatement Systems for Sewage Sludge Incinerators

摘要

Capital and annual costs were calculated for applying six different air pollution control systems to municipal sewage sludge incinerators that were using multiple-hearth furnaces. The systems involved three principal types of air pollution equipment-wet scrubbers, fabric filters, and electrostatic precipitators-applied to three different plant sizes (plants incinerating 36, 72, and 300 tons of dry sludge per day in one, two, and eight multiple-hearth furnaces, respectively). Technical feasibility studies indicated that all three types of controls could achieve a total particulate removal efficiency of 99 percent.