PURIFICATION TREATMENT PRODUCT OF HARMFUL GAS CONTAINING BLACK SMOKE, MALODOR, HEAVY METAL AND FLY ASH AND BOTTOM ASH DEPOSITED ON BOTTOM OF INCINERATOR OR THE LIKE AND PURIFICATION TREATMENT OF THE SAME

摘要

PROBLEM TO BE SOLVED: To enable easy attainment of clearance of the dioxin regulatory standard value that is considered as most difficult to clear, even at the time of discontinuously operating a medium- or small-size furnace, and reduction in equipment cost, revamping/modification cost of existing equipment and burden on inhabitants. ;SOLUTION: This purification treatment comprises: bringing an aqueous film forming inorganic compound material consisting of siloxane and a silanol salt(s) into contact with a combustion gas of harmful waste, that contains black smoke, malodor, heavy metals and fly ash, to form a filmily-formed foamy material and at the same time, to form a combustion residue having such a structure that black smoke, malodor, harmful gaseous constituents, heavy metals, etc. are incorporated into the filmily-formed foamy material. Thus, such harmful materials or pollutants, i.e., the black smoke, malodor, harmful gaseous constituents, heavy metals, etc. are concurrently sealed in the combustion residue.;COPYRIGHT: (C)1999,JPO