冶金、电镀和制革等行业产生的废水中含有大量的铬元素,含铬废水直接排放将对生态环境和人类健康造成危害,因此必须经过处理达标后排放.含铬废水的处理方法包括理化法、化学法和生物法.在对国内外相关文献综合分析的基础上,对目前国内外含铬废水的处理方法进行了系统总结,结合国内外污染控制的发展趋势,对今后含铬废水处理的技术走向进行了预测与展望,认为以废治污、联合处理技术开发及技术的工程转化可能是下一步的研究重点.
Chromium is mainly from the effluent of the metallurgy,electroplating,tanning,and etc.It will harm ecological environment and human health if discharge directly.The efflutent must be treated harmless for discharge.The treatment technologies of chromium-containing industrial wastewater include physicochemical,chemical and biological methods.And the treatment technologies at home and abroad were systematically summarized on the basis of the analysis of the domestic and international literatures.Some prospects of the treatment technologies were also given by considering the future trends of pollution control,which thought the next researches may be focused on wastes reusing,combined technology development and engineering transformation of technologies.
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