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The treatment process and upgrading of effluents containing metal sulfides using one step addition of amu00c8nia
The treatment process and upgrading of effluents containing metal sulfides using one step addition of amu00c8nia
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机译:一步添加am u00c8nia的工艺过程和含金属硫化物废水的提纯
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摘要
A method for treating and upgrading effluents containing at least a metallic sulphate comprising adding at least a base to the effluent to precipitate the metallic ions in the form of iron oxy-hydroxides Fe(OHx) wherein x=2 and/or 3; separating the precipitated hydroxide calcium sulphate CaSO4; and separating the calcium sulphate CaSO4 precipitated during the preceding step. Said method enables obtainment of calcium sulphate (white gypsum) substantially free of metals and therefore capable of being upgraded and iron oxy-hydroxides likewise capable of being upgraded.
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机译:一种用于处理和提纯至少含有金属硫酸盐的流出物的方法,该方法包括向流出物中加入至少一种碱以使金属氧化物以氢氧化铁(Fe x OH x)的形式沉淀,其中x = 2和/或3。分离沉淀的氢氧化钙硫酸钙CaSO4;并分离在先前步骤中沉淀的硫酸钙CaSO4。所述方法使得能够获得基本上不含金属的硫酸钙(白石膏),因此能够被提质,并且羟基氧化铁同样能够被提质。
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