Journal of Water Supply: Research and Technology ( IF 4.3 ) Pub Date : 2020-09-01 , DOI: 10.2166/aqua.2020.033 Petra Vašatová 1 , Monika Filipenská 1 , Radim Petříček 1 , Martin Pivokonský 1
Floc properties can be controlled only by selecting a coagulant type and adjusting mixing parameters. However, optimization of mixing is widely overlooked. Well-chosen mixing conditions increase floc separation efficiency, which decreases the operating costs of drinking water treatment plants (DWTPs). This paper presents guidelines for designing mixing parameters in water treatment. Special attention is paid to the determination of mixing intensity and the purpose of different mixing intensities with respect to the subsequent separation. For instance, single-stage separation by filtration must be preceded by homogenization and rapid flocculation mixing. Double-stage separation by sedimentation and filtration should be preceded by homogenization, rapid flocculation mixing and slow flocculation mixing.
中文翻译:
关于混合特性及其在水处理过程中的应用的重要性
絮凝特性只能通过选择凝结剂类型和调整混合参数来控制。然而,混合的优化被广泛忽视。精心选择的混合条件可提高絮凝分离效率,从而降低饮用水处理厂(DWTP)的运营成本。本文介绍了在水处理中设计混合参数的准则。特别注意混合强度的确定以及关于随后分离的不同混合强度的目的。例如,在通过过滤进行单级分离之前,必须进行均质化和快速絮凝混合。在通过沉淀和过滤进行双阶段分离之前,应进行均质,快速絮凝混合和缓慢絮凝混合。