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Neutralisation and solidification of industrial waste - by mixing in acidic medium with silicate(s), neutralising the silicic acid formed and solidifying with e.g. portland cement
Neutralisation and solidification of industrial waste - by mixing in acidic medium with silicate(s), neutralising the silicic acid formed and solidifying with e.g. portland cement
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机译:工业废物的中和和固化-通过在酸性介质中与硅酸盐混合,中和形成的硅酸并用硅酸盐水泥
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摘要
Neutralisation and solidification of waste is effected by:- (a) mixing the waste in acidic medium with silicate-contg. materials to form silicic acid in the reactive medium; (b) neutralising the mixt. up to a pH of 9 to ensure and accelerate polymerisation of silica-gel, so that the stabilised prods. are encapsulated, and (c) ensuring solidification of the obtd. mixt. by adding a solidification agent such as Portland cement, neutralised plaster, cement-sulphur mixts. or bitumen emulsions.
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