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process for removal of organic and / or inorganic micropollutants from mud, especially from marine and lagunensedimenten or from soil

机译:从泥浆中,特别是从海洋和泻药中或土壤中去除有机和/或无机微污染物的方法

摘要

Process for the decontamination of mud, in particular sea and lagoon sediment, or earth from organic and/or inorganic micropollutants characterized in that it essentially comprises the following steps: thermal desorption from the mud or earth of organic micropollutants and volatile metals in an oven at a temperature ranging from 300 to 700 DEG C, obtaining a gaseous stream containing the organic pollutants and volatile metals removed and a residual solid stream; extraction of the heavy metals from the residual solid stream by means of inorganic acids or kelating compounds in aqueous solution, in one or more steps, by chemically dissolving said heavy metals, obtaining substantially detoxified mud or earth having such characteristics as to enable it to be replaced in the original site.
机译:从有机和/或无机微污染物去污泥,特别是海洋和泻湖沉积物或泥土的方法,其特征在于,该方法主要包括以下步骤:在烤箱中于200℃的烤箱中从泥土或土壤中热解吸有机微污染物和挥发性金属。在300至700℃的温度范围内,获得含有除去的有机污染物和挥发性金属的气态物流和残余的固态物流;通过一种或多种步骤,通过化学溶解所述重金属,通过一种或多种步骤,通过水溶液中的无机酸或盐酸盐化合物从残余固体流中提取重金属,从而获得具有基本特性的脱毒泥或土,使其能够被替换为原始网站。

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