本文提出了用铁屑与铝渣混合处理钢铁钝化含铬废水的新方法，给出了最佳处理条件，并对处理机理进行了分析。

In this paper, a new method of treating the wastewater chromiumcontaining with mixture of iron chippings and aluminium dregs is put forward.

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讨论了铝热法铬硼合金生产工艺中原料处理、渣系、热量等方面对冶炼回收率的影响，并提出了控制方法。

The effects of respects such as material disposal, slag system and heat etc. on recovery are discussed in chrome-boron smelting with thermite method, and the control measures are also put forward.

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