| 摘要 |
PURPOSE:To effectively utilize sludge incineration ash by imparting viscosity of a certain degree to the sludge incineration ash of waste water. CONSTITUTION:An aq. carboxymethyl cellulose soln. is added to sludge incineration ash to be kneaded therewith under stirring and the resulting kneaded matter is molded into a primary molded product having a predetermined lumpy shape and this primary molded product is baked to obtain a baked object or backed at temp. of 1100-1250 deg.C to be foamed. |
