| Issue |
E3S Web Conf.
Volume 109, 2019
International Conference Essays of Mining Science and Practice
|
|
|---|---|---|
| Article Number | 00061 | |
| Number of page(s) | 7 | |
| DOI | https://doi.org/10.1051/e3sconf/201910900061 | |
| Published online | 09 July 2019 | |
Defining the effect of the chemical concentration and solution pH on membrane chemical cleaning process
Higher Education State Institution «Pridneprovsk State Academy of Civil Engineering and Architecture», 49600, Dnipro, Chernyshevskoho Str., 24a, Ukraine
* Corresponding author: ek_n@i.ua
In the process of treating natural water from surface sources, precipitated substances are tend to be deposited on the ultrafiltration membrane, either as suspended solids or as gel structures, formed by humic substances with metal salts. Hydraulic washes are unable to remove gelled structures from the surface of the membranes. Consequently, the phenomenon of gelation on the surface of the membrane causes gradual decrease in productivity, which is a negative factor. Chemical washing of membranes is generally used to remove the gel layer from the membrane surface. In this paper, the range of compositions which effectively remove complex contaminants is proposed, and also the efficacy of both pH and changes in the concentration of active substances on the process of washing the membrane are analyzed.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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