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.