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Show • Burning wood as a base test at representative operating conditions. • Burning wood with sludge at three different percentages at representative operating conditions. • Burning wood with tires at three different percentages at representative operating conditions. The pollutants to be measured would be the ten pollutants specified under Section 129 and the following additional pollutants; • Additional metals (Sb, As, Be, Cr, Mn, Ni) • Polynuclear Aromatic Hydrocarbons (PAH) • Polychlorinated Biphenyls (PCB) • Benzene, Formaldehyde and other compounds measured by FTIR or other appropriate methods. Works In Progress Control Technology Rankings - Control devices were ranked by their relative effectiveness in reducing emissions of metallic, inorganic (acid gases), organic and mercury H A P s from boilers burning solid, liquid, or gaseous materials. The initial ranking divided the effectiveness into four (4) subjective levels those ranked one (1) were most effective and those ranked four (4) were least effective. The rankings were based upon individual experience of the members of the control technology task group. The group ranked fabric filters and wet electrostatic precipitators as best for control of metallic HAPs. Packed gas absorption columns, other wet scrubbers using neutralization reagents, and spray dryers/fabric filters were ranked highest for control of inorganic H A P s or acid gases. Activated carbon injection was ranked highest for control of organic H A P s and mercury. HAPs reduction and control is an area requiring further research. Economics task group analysis - This presents the results of an analysis conducted by boiler economics task group. The analysis consists of a sensitivity analyses of control devices using EPA-developed costing algorithms and distribution of boilers by SIC code. Subcategories for boilers firing wood, nonfossil materials, and coal - The B W G has complied preliminary subcategories developed for boilers firing wood, coal, or non-fossil materials and the number of boilers that would be in each subcategory. The wood subgroup proposed three (3) subcategories based on fuel type as follows: Dry Wood, Timber and Treated Wood. The nonfossil fuel subgroup proposed twelve (12) subcategories. Table 7 shows D:\jps\ica\bwg\boilerwg 8 |