Methods for insoluble materials and waste containing alumina cement powder, including binary-based readily available heavy metals, and other insoluble substances.

Abstract

This invention provides an insoluble material with higher immediate effectiveness than conventional insoluble materials when applied to waste containing specific heavy metals, etc., and can immediately inhibit the leaching of heavy metals, etc., thus possessing high practical value. It also provides a method for insolubleting hazardous substances in waste using this insoluble material. The present invention relates to a binary, immediately effective heavy metal insoluble material containing alumina cement powder and a method for insolubleting hazardous substances in waste. This material is added to waste containing a second specific hazardous substance (heavy metal, etc.) and reacts immediately upon contact with moisture. It contains: alumina cement powder with tricalcium aluminate as its main component, and a powdered component that generates anions in aqueous solution. This powdered component contains at least one powder selected from the group consisting of chloride salt powder, carbonate powder, and salt containing monohydrogen phosphate ions, or powder containing hydroxide salt and / or oxide salt.

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