In the chemical industry, a typical problem is the appropriate treatment of the process wastewaters. The biological treatment cannot be usually applied because of the high content of organochemical compounds. However, phsycicochemical methods can significantly contribute to the proper treatment of the process wastewater and usually also allows the recovery of the polluting materials. This phenomenon opens the application area of physicochemical methods for the treatment of process wastewater and can contribute not only to the aims of the circular economy but also to the zero liquid discharge. Besides literature studies, authors’ own results and innovations have been also presented. The treatment strategy for pharmaceutical process wastewater is reviewed in detail, which also serves to point out that hybrid methods can be usually efficient to solve the primary goal–maximum recovery and reuse of polluting materials.

中文翻译：

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工艺废水处理的物化方法：化工行业循环经济的有力工具

在化学工业中，一个典型的问题是工艺废水的适当处理。由于有机化合物含量高，通常不能应用生物处理。然而，物理化学方法可以显着促进工艺废水的适当处理，并且通常还可以回收污染物质。这一现象开辟了物理化学方法处理工艺废水的应用领域，不仅有助于实现循环经济的目标，而且有助于实现液体零排放。除文献研究外，还介绍了作者自己的成果和创新。详细回顾了制药工艺废水的处理策略，