FILTER AUXILIARY AGENT AND EXHAUST GAS TREATING METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a filter auxiliary agent capable of surely exhibiting perfor mance with small addition and to provide an exhaust gas treating method using the filter auxiliary agent. SOLUTION: The filter auxiliary agent is constituted of the pearlite having 21-300μm average particle size and having 0-60 mass % particles floatable on water. The filter auxiliary agent is constituted of the pearlite having 101-500μm maximum particle size and having 0-60 mass % particles floatable on the water. In the exhaust gas treating method, after adding the pearlite having 21-300μm average particle size and having 0-60 mass % particles floatable on the water in dust-containing waste gas, the dust-containing waste gas is filtered and clarified by a bag filter.