工业酸性废液回收利用的现状

Current status of recycling of industrial acidic effluents

从中国资源开发的现状和社会发展以节能减排、保护环境、建设节约型可持续发展经济社会的需求来看,工业酸性废液的回收利用刻不容缓。综述了处理含酸废液的最新研究方法和研究进展,系统地概述了纳滤膜法、扩散渗析法、电渗析法等膜技术处理酸性废液的作用原理、研究与应用现状。膜分离技术因其工艺简单、能耗低、环境友好等特点获得了长足的发展和广泛应用,为酸性废液的回收利用提供了可能。此外简单总结了各种处理方法的优缺点,并结合中国的基本国情和处理技术的发展现状,对各种方法在酸性废液处理方面的应用前景进行了展望。

Based on current status of resources development in China and on the requirement of energy-saving,and emission-reduction,environment protection,and of building resource-conserving society to realize sustainable development of economy,recycling of industrial acidic effluents is increasingly imperative.Latest research methods and progress for the treatment of acidic effluents were summarized.Action principles and present research and application status of various membrane technologies including nano-filter membrane method,diffusion dialysis method,and electrodialysis method etc.for treating acidic effluents were systematically introduced.Membrane separation technologies have gained significant development and wide application due to their advantages,such as simplicity,low energy consumption,and environment-friendliness,and they offered possibility for recycling acidic industrial effluents.In particular,advantages and disadvantages of those methods were summarized briefly and prospects of their application in acidic waste liquid treatment were discussed on the basis of fundamental realities of China and their current development status.