METHOD OF AUTOMATED DETERMINATION OF MORPHOLOGY OF A SELECTIVE-PERMEABLE SURFACE OF NANOFILTRATION MEMBRANES OPMN-P AND OFAM-K

The  analytical review  and  determining method of the  morphology of structure inhomogeneities of selectively-permeable surface of polymer membranes are  presented in this  article. The  aim of the  work was   the    developing  and   research  of   automated  method  for   calculating  the    morphology  of microstructure   inhomogeneities  of  selectively  permeable  surface  of  nanofiltration  membranes OPMN-P and OFAM-K. The developed method of calculation allows to identify surface microstructural inhomogeneity of semi-permeable membranes and  the  contamination coefficient. The  obtained data about the microstructural inhomogeneities and the ratio of clogging of the membranes allow for the actual conditions of the  factory laboratories to  predict and  define  the  term of effective operation of nanofiltration by porous membranes OPMN-P and OFAM-K, which are equipped by roller elements of a baromembrane and  electrobaromembrane plants for concentration and  purification of technological solutions and  wastewater in the  electroplating, chemical and  food industries. Implementation of this method is  confirmed by  developed software  package for  identification of  surface microstructure inhomogeneities of semi-permeable membranes and the contamination coefficient. There is a methodology for automated calculation of the  average diameter value  of semi-permeable membranes clogging and  the  contamination coefficient of the  porous objects  in this  paper. The  software complex  based  on the  proposed method is developed and  allows  to determine the  microstructural inhomogeneity of the surface of  the   polymer membranes  OPMN-P and   OFAM-K  No.  2018611402RU. The  calculation method is based on the developed program that allows to study the description of the main functions of “imaging processing toolbox”. The use of modern tools to achieve the goal of this  work is shown by using the capabilities of the software package Matlab 2017. Practically, the method is implemented on the example of  the   process of  nanofiltration with   the   using of  semi-permeable  polymer membranes OPMN-P and  OFAM-K.

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