WATER PURIFICATION PLANT SOIL-BASED ADSORBING MATERIAL FOR ENVIRONMENTAL PRESERVATION, PRODUCTION METHOD THEREOF AND USE THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive water purification plant soil-based adsorbing material for environmental preservation, in which material is obtained by using the water purification plant soil as a supporting base material and used for fixing contaminative ionic species, which are dissolved in soil materials such as various kinds of sludge and natural soil, as insoluble matter and to provide a recycling waste processing method for insolubilizing/fixing contaminating ionic species in various contaminated soil materials by using the obtained adsorbing material to obtain useful soil materials as reclaimed products.

SOLUTION: The water purification plant soil-based adsorbing material for environmental preservation to adsorb and insolubilize contaminating ionic species is obtained by impregnating the water purification plant soil as the supporting base material with a metal sulfate salt of aluminum sulfate of 0.1-2.5 parts mass in terms of anhydride thereof on the basis of 100 parts mass of the water purification plant soil in terms of the dried one obtained by heating the water purification plant soil at 110°C for 24 hours.

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