该工艺采用焙烧法将污泥中的金属组分同类分离，并结合黄钠铁矾沉淀法去除杂质铁等工艺对铜、镍、铬进行了回收利用。
Different metals are separated from the electroplating sludge by roasting and copper, nickel and chromium were recovered with suitable methods such as removing iron by sodium jarosite precipitation.
讨论了镍和矾在原油中的存在形态，以及对石油后续加工造成的危害。
The existing forms of Ni and V and its position for the latter process are discussed. The removal methods of Ni and V are recounted in detail.
讨论了镍和矾在原油中的存在形态，以及对石油后续加工造成的危害。
The existing forms of Ni and V and its position for the latter process are discussed. The removal methods of Ni and V are recounted in detail.
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