abstract |
In the present invention, kaolin is mixed with 0 to 20 g of kaolin per kg of sewage sludge (0 to 2% by weight of sewage sludge), dried (100 ± 5 ° C., 1 hr), heat treated (650 to 800 ° C., 1 hr) (3,000 ~ 5,000 cm 2 / g) after being cooled in an electric furnace. The present invention also relates to a method for producing highly reactive alkali active pozzolans from sewage treatment sewage sludge. |