The Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase Recoveries
This article describes the results of research to develop a new technology to treat storm and drainage water generated on a territory of industrial enterprises and reuse it as a feed water for boiler feed and steam generation. To develop such a system, it is necessary to resolve issues related to pr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/15/4/96 |
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| author | Alexei G. Pervov Dmitry Spitsov Anna Kulagina Htet Zaw Aung |
| author_facet | Alexei G. Pervov Dmitry Spitsov Anna Kulagina Htet Zaw Aung |
| author_sort | Alexei G. Pervov |
| collection | DOAJ |
| description | This article describes the results of research to develop a new technology to treat storm and drainage water generated on a territory of industrial enterprises and reuse it as a feed water for boiler feed and steam generation. To develop such a system, it is necessary to resolve issues related to pretreatment, scaling, and fouling, as well as to provide a minimal discharge in the company’s sanitation network. Principles of the new approach to reach high calcium removal are based on the use of two or three stages of low-pressure nanofiltration membranes instead of the conventional facilities that contain one stage of reverse osmosis membranes. High permeability, low pressure, high recovery, and reduced reagent consumption provide an economic effect. The technology uses low-rejection membranes “nano NF” developed and produced by “Membranium Co.” (Vladimir, Russia). In the article, the results of investigations on the evaluation of scaling rates in membrane modules and rates of homogeneous crystallization in concentrate flow are presented. Processing these results enables us to detect recovery values when scaling begins on the membrane surface as well as to determine the maximum recovery value for the beginning of homogenous nucleation in the concentrate flow. |
| format | Article |
| id | doaj-art-872d01bf3f4f4fe3a96cf7250bf4bc29 |
| institution | OA Journals |
| issn | 2077-0375 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj-art-872d01bf3f4f4fe3a96cf7250bf4bc292025-08-20T02:28:37ZengMDPI AGMembranes2077-03752025-03-011549610.3390/membranes15040096The Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase RecoveriesAlexei G. Pervov0Dmitry Spitsov1Anna Kulagina2Htet Zaw Aung3Department of Water Supply, Moscow State University of Civil Engineering, 26, Yaroslaskoye Highway, 129337 Moscow, RussiaDepartment of Water Supply, Moscow State University of Civil Engineering, 26, Yaroslaskoye Highway, 129337 Moscow, RussiaDepartment of Water Supply, Moscow State University of Civil Engineering, 26, Yaroslaskoye Highway, 129337 Moscow, RussiaDepartment of Water Supply, Moscow State University of Civil Engineering, 26, Yaroslaskoye Highway, 129337 Moscow, RussiaThis article describes the results of research to develop a new technology to treat storm and drainage water generated on a territory of industrial enterprises and reuse it as a feed water for boiler feed and steam generation. To develop such a system, it is necessary to resolve issues related to pretreatment, scaling, and fouling, as well as to provide a minimal discharge in the company’s sanitation network. Principles of the new approach to reach high calcium removal are based on the use of two or three stages of low-pressure nanofiltration membranes instead of the conventional facilities that contain one stage of reverse osmosis membranes. High permeability, low pressure, high recovery, and reduced reagent consumption provide an economic effect. The technology uses low-rejection membranes “nano NF” developed and produced by “Membranium Co.” (Vladimir, Russia). In the article, the results of investigations on the evaluation of scaling rates in membrane modules and rates of homogeneous crystallization in concentrate flow are presented. Processing these results enables us to detect recovery values when scaling begins on the membrane surface as well as to determine the maximum recovery value for the beginning of homogenous nucleation in the concentrate flow.https://www.mdpi.com/2077-0375/15/4/96reverse osmosisnanofiltrationsurface (storm) wastewaterdrainage wastewatermembrane rejectionreduction in concentrate discharge |
| spellingShingle | Alexei G. Pervov Dmitry Spitsov Anna Kulagina Htet Zaw Aung The Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase Recoveries Membranes reverse osmosis nanofiltration surface (storm) wastewater drainage wastewater membrane rejection reduction in concentrate discharge |
| title | The Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase Recoveries |
| title_full | The Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase Recoveries |
| title_fullStr | The Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase Recoveries |
| title_full_unstemmed | The Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase Recoveries |
| title_short | The Use of Low-Rejection Nanofiltration Membranes as a Tool to Simplify Pretreatment, Escape Scaling and Radically Increase Recoveries |
| title_sort | use of low rejection nanofiltration membranes as a tool to simplify pretreatment escape scaling and radically increase recoveries |
| topic | reverse osmosis nanofiltration surface (storm) wastewater drainage wastewater membrane rejection reduction in concentrate discharge |
| url | https://www.mdpi.com/2077-0375/15/4/96 |
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