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Optimal Water Backwashing Condition in Combined Water Treatment of Alumina Microfiltration and PP Beads
Membrane fouling is a dominant limit of the membrane separation process. In this research, the optimal water backwashing to solve the membrane fouling problem was investigated in the combined water treatment process of alumina MF and pure polypropylene (PP) beads. Additionally, the influence of memb...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8780702/ https://www.ncbi.nlm.nih.gov/pubmed/35054618 http://dx.doi.org/10.3390/membranes12010092 |
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author | Cho, Hyungmin Yoon, Gihoon Kim, Minjae Park, Jin Yong |
author_facet | Cho, Hyungmin Yoon, Gihoon Kim, Minjae Park, Jin Yong |
author_sort | Cho, Hyungmin |
collection | PubMed |
description | Membrane fouling is a dominant limit of the membrane separation process. In this research, the optimal water backwashing to solve the membrane fouling problem was investigated in the combined water treatment process of alumina MF and pure polypropylene (PP) beads. Additionally, the influence of membrane shape (tubular or seven channel) was examined, depending on the water backwashing period. The optimal backwashing time (BT) could be 20 s in the combined water treatment process, because of the highest total treated volume (V(T)) in our BT 6–30 s conditions. The optimal backwashing period (BP) could be 6 min, because of the minimum membrane fouling and the maximum V(T) in the combined process of tubular alumina MF and PP beads. The resistance of reversible membrane fouling (R(rf)) showed a major resistance of total membrane fouling, and that of irreversible membrane fouling (R(if)) was a minor one, in the combined process using tubular or seven channel MF. The R(if) showed a decreasing trend obviously, as decreasing BT from NBW to 2 min for seven channel MF. It means that the more frequent water backwashing could be more effective to control the membrane fouling, especially irreversible fouling, for seven channel membranes than tubular membranes. |
format | Online Article Text |
id | pubmed-8780702 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87807022022-01-22 Optimal Water Backwashing Condition in Combined Water Treatment of Alumina Microfiltration and PP Beads Cho, Hyungmin Yoon, Gihoon Kim, Minjae Park, Jin Yong Membranes (Basel) Article Membrane fouling is a dominant limit of the membrane separation process. In this research, the optimal water backwashing to solve the membrane fouling problem was investigated in the combined water treatment process of alumina MF and pure polypropylene (PP) beads. Additionally, the influence of membrane shape (tubular or seven channel) was examined, depending on the water backwashing period. The optimal backwashing time (BT) could be 20 s in the combined water treatment process, because of the highest total treated volume (V(T)) in our BT 6–30 s conditions. The optimal backwashing period (BP) could be 6 min, because of the minimum membrane fouling and the maximum V(T) in the combined process of tubular alumina MF and PP beads. The resistance of reversible membrane fouling (R(rf)) showed a major resistance of total membrane fouling, and that of irreversible membrane fouling (R(if)) was a minor one, in the combined process using tubular or seven channel MF. The R(if) showed a decreasing trend obviously, as decreasing BT from NBW to 2 min for seven channel MF. It means that the more frequent water backwashing could be more effective to control the membrane fouling, especially irreversible fouling, for seven channel membranes than tubular membranes. MDPI 2022-01-15 /pmc/articles/PMC8780702/ /pubmed/35054618 http://dx.doi.org/10.3390/membranes12010092 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Cho, Hyungmin Yoon, Gihoon Kim, Minjae Park, Jin Yong Optimal Water Backwashing Condition in Combined Water Treatment of Alumina Microfiltration and PP Beads |
title | Optimal Water Backwashing Condition in Combined Water Treatment of Alumina Microfiltration and PP Beads |
title_full | Optimal Water Backwashing Condition in Combined Water Treatment of Alumina Microfiltration and PP Beads |
title_fullStr | Optimal Water Backwashing Condition in Combined Water Treatment of Alumina Microfiltration and PP Beads |
title_full_unstemmed | Optimal Water Backwashing Condition in Combined Water Treatment of Alumina Microfiltration and PP Beads |
title_short | Optimal Water Backwashing Condition in Combined Water Treatment of Alumina Microfiltration and PP Beads |
title_sort | optimal water backwashing condition in combined water treatment of alumina microfiltration and pp beads |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8780702/ https://www.ncbi.nlm.nih.gov/pubmed/35054618 http://dx.doi.org/10.3390/membranes12010092 |
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