Cargando…
Study on the Treatment of Refined Sugar Wastewater by Electrodialysis Coupled with Upflow Anaerobic Sludge Blanket and Membrane Bioreactor
In this paper, refined sugar wastewater (RSW) is treated by electrodialysis (ED) coupled with an upflow anaerobic sludge blanket (UASB) and membrane bioreactor (MBR). The salt in RSW was first removed by ED, and then the remaining organic components in RSW were degraded by a combined UASB and MBR sy...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10224370/ https://www.ncbi.nlm.nih.gov/pubmed/37233588 http://dx.doi.org/10.3390/membranes13050527 |
_version_ | 1785050163043106816 |
---|---|
author | Xu, Shichang Zhao, Han Xie, Lixin Wang, Keqiang Zhang, Wen |
author_facet | Xu, Shichang Zhao, Han Xie, Lixin Wang, Keqiang Zhang, Wen |
author_sort | Xu, Shichang |
collection | PubMed |
description | In this paper, refined sugar wastewater (RSW) is treated by electrodialysis (ED) coupled with an upflow anaerobic sludge blanket (UASB) and membrane bioreactor (MBR). The salt in RSW was first removed by ED, and then the remaining organic components in RSW were degraded by a combined UASB and MBR system. In the batch operation of ED, the RSW was desalinated to a certain level (conductivity < 6 mS·cm(−1)) at different dilute to concentrated stream volume ratios (V(D)/V(C)). At the volume ratio of 5:1, the salt migration rate J(R) and COD migration rate J(COD) were 283.9 g·h(−1)·m(−2) and 13.84 g·h(−1)·m(−2), respectively, and the separation factor α (defined as J(COD)/J(R)) reached a minimum value of 0.0487. The ion exchange capacity (IEC) of ion exchange membranes (IEMs) after 5 months of usage showed a slight change from 2.3 mmol·g(−1) to 1.8 mmol·g(−1). After the ED treatment, the effluent from the tank of the dilute stream was introduced into the combined UASB-MBR system. In the stabilization stage, the average COD of UASB effluent was 2048 mg·L(−1), and the effluent COD of MBR was maintained below 44–69 mg·L(−1), which met the discharge standard of water contaminants for the sugar industry. The coupled method reported here provides a viable idea and an effective reference for treating RSW and other similar industrial wastewaters with high salinity and organic contents. |
format | Online Article Text |
id | pubmed-10224370 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-102243702023-05-28 Study on the Treatment of Refined Sugar Wastewater by Electrodialysis Coupled with Upflow Anaerobic Sludge Blanket and Membrane Bioreactor Xu, Shichang Zhao, Han Xie, Lixin Wang, Keqiang Zhang, Wen Membranes (Basel) Article In this paper, refined sugar wastewater (RSW) is treated by electrodialysis (ED) coupled with an upflow anaerobic sludge blanket (UASB) and membrane bioreactor (MBR). The salt in RSW was first removed by ED, and then the remaining organic components in RSW were degraded by a combined UASB and MBR system. In the batch operation of ED, the RSW was desalinated to a certain level (conductivity < 6 mS·cm(−1)) at different dilute to concentrated stream volume ratios (V(D)/V(C)). At the volume ratio of 5:1, the salt migration rate J(R) and COD migration rate J(COD) were 283.9 g·h(−1)·m(−2) and 13.84 g·h(−1)·m(−2), respectively, and the separation factor α (defined as J(COD)/J(R)) reached a minimum value of 0.0487. The ion exchange capacity (IEC) of ion exchange membranes (IEMs) after 5 months of usage showed a slight change from 2.3 mmol·g(−1) to 1.8 mmol·g(−1). After the ED treatment, the effluent from the tank of the dilute stream was introduced into the combined UASB-MBR system. In the stabilization stage, the average COD of UASB effluent was 2048 mg·L(−1), and the effluent COD of MBR was maintained below 44–69 mg·L(−1), which met the discharge standard of water contaminants for the sugar industry. The coupled method reported here provides a viable idea and an effective reference for treating RSW and other similar industrial wastewaters with high salinity and organic contents. MDPI 2023-05-19 /pmc/articles/PMC10224370/ /pubmed/37233588 http://dx.doi.org/10.3390/membranes13050527 Text en © 2023 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 Xu, Shichang Zhao, Han Xie, Lixin Wang, Keqiang Zhang, Wen Study on the Treatment of Refined Sugar Wastewater by Electrodialysis Coupled with Upflow Anaerobic Sludge Blanket and Membrane Bioreactor |
title | Study on the Treatment of Refined Sugar Wastewater by Electrodialysis Coupled with Upflow Anaerobic Sludge Blanket and Membrane Bioreactor |
title_full | Study on the Treatment of Refined Sugar Wastewater by Electrodialysis Coupled with Upflow Anaerobic Sludge Blanket and Membrane Bioreactor |
title_fullStr | Study on the Treatment of Refined Sugar Wastewater by Electrodialysis Coupled with Upflow Anaerobic Sludge Blanket and Membrane Bioreactor |
title_full_unstemmed | Study on the Treatment of Refined Sugar Wastewater by Electrodialysis Coupled with Upflow Anaerobic Sludge Blanket and Membrane Bioreactor |
title_short | Study on the Treatment of Refined Sugar Wastewater by Electrodialysis Coupled with Upflow Anaerobic Sludge Blanket and Membrane Bioreactor |
title_sort | study on the treatment of refined sugar wastewater by electrodialysis coupled with upflow anaerobic sludge blanket and membrane bioreactor |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10224370/ https://www.ncbi.nlm.nih.gov/pubmed/37233588 http://dx.doi.org/10.3390/membranes13050527 |
work_keys_str_mv | AT xushichang studyonthetreatmentofrefinedsugarwastewaterbyelectrodialysiscoupledwithupflowanaerobicsludgeblanketandmembranebioreactor AT zhaohan studyonthetreatmentofrefinedsugarwastewaterbyelectrodialysiscoupledwithupflowanaerobicsludgeblanketandmembranebioreactor AT xielixin studyonthetreatmentofrefinedsugarwastewaterbyelectrodialysiscoupledwithupflowanaerobicsludgeblanketandmembranebioreactor AT wangkeqiang studyonthetreatmentofrefinedsugarwastewaterbyelectrodialysiscoupledwithupflowanaerobicsludgeblanketandmembranebioreactor AT zhangwen studyonthetreatmentofrefinedsugarwastewaterbyelectrodialysiscoupledwithupflowanaerobicsludgeblanketandmembranebioreactor |