ARTIFICIAL SOILS AND METHODS FOR MANUFACTURING ARTIFICIAL SOILS
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United States of America Patent
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Issued Date -
Aug 23, 2018
app pub date -
Feb 22, 2018
filing date -
Feb 22, 2017
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Abstract
An artificial soil for growing vegetation includes a mixture of biosolids from a wastewater treatment plant, at least one of synthetic gypsum and a gypsum-depleted by-product, and a calcium compound from at least one of a lime kiln dust, a fluidized bed ash, and a ball mill lime. The calcium compound is present in an amount sufficient to heat the mixture to at least about 132° F. following mixing. The mixture may include at least one of silica and alumina. The artificial soil may include hydrated lime. The mixture may include at least about 1/9 by volume of biosolids and/or from about ⅛ to about ½ by volume of the calcium compound. A method of manufacturing the artificial soil includes mixing biosolids with at least one of synthetic gypsum and a gypsum-depleted by-product and at least one of a lime kiln dust, a fluidized bed ash, and a ball mill lime.
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Cited Art Landscape
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