Wastewaters treatment containing phenol and ammonium using aerobic submerged membrane bioreactor
Abstract Phenolic wastewater was treated using anaerobic submerged membrane bioreactor (ASMBR). Effect of different solids retention times on MBR performance was studied. Various ratios of carbon to nitrogen were used in the synthetic wastewaters. During the operation, phenol concentration of feed w...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
BMC
2018-07-01
|
Series: | Chemistry Central Journal |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s13065-018-0450-1 |
id |
doaj-3b03ad6ae1a0482393a605e2c525128b |
---|---|
record_format |
Article |
spelling |
doaj-3b03ad6ae1a0482393a605e2c525128b2021-08-02T18:38:33ZengBMCChemistry Central Journal1752-153X2018-07-0112111010.1186/s13065-018-0450-1Wastewaters treatment containing phenol and ammonium using aerobic submerged membrane bioreactorMashallah Rezakazemi0Mohsen Maghami1Toraj Mohammadi2Faculty of Chemical and Materials Engineering, Shahrood University of TechnologyResearch and Technology Centre for Membrane Processes, Faculty of Chemical Engineering, Iran University of Science and Technology (IUST)Research and Technology Centre for Membrane Processes, Faculty of Chemical Engineering, Iran University of Science and Technology (IUST)Abstract Phenolic wastewater was treated using anaerobic submerged membrane bioreactor (ASMBR). Effect of different solids retention times on MBR performance was studied. Various ratios of carbon to nitrogen were used in the synthetic wastewaters. During the operation, phenol concentration of feed was changed from 100 to 1000 mg L−1. Phenol concentration was increased stepwise over the first 30 days and kept constant at 1000 mg L−1, thereafter. For the first 100 days, a chemical oxygen demand (COD) to N ratio of 100:5.0 was used and this resulted in phenol and COD removal more than 99 and 95%, respectively. However, the ammonium removal decreased from 95 to 40% by increasing the phenol concentration of feed, from 100 to 1000 mg L−1. For the last 25 days, a COD to N ratio of 100:2.1 was used due to the ammonium accumulation in the ASMBR. This led to the complete ammonium removal and no ammonium was detected in the ASMBR permeate. These results suggest that in the ASMBR at high phenol loading of 1000 mg L−1, COD to N ratio of the phenolic wastewater must be 100:2.1 for ammonium removal, while at low phenol loading, COD to N ratio of 100:5.0 can be used.http://link.springer.com/article/10.1186/s13065-018-0450-1MembraneHollow fiberWastewaterAmmonium removalEnvironment |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mashallah Rezakazemi Mohsen Maghami Toraj Mohammadi |
spellingShingle |
Mashallah Rezakazemi Mohsen Maghami Toraj Mohammadi Wastewaters treatment containing phenol and ammonium using aerobic submerged membrane bioreactor Chemistry Central Journal Membrane Hollow fiber Wastewater Ammonium removal Environment |
author_facet |
Mashallah Rezakazemi Mohsen Maghami Toraj Mohammadi |
author_sort |
Mashallah Rezakazemi |
title |
Wastewaters treatment containing phenol and ammonium using aerobic submerged membrane bioreactor |
title_short |
Wastewaters treatment containing phenol and ammonium using aerobic submerged membrane bioreactor |
title_full |
Wastewaters treatment containing phenol and ammonium using aerobic submerged membrane bioreactor |
title_fullStr |
Wastewaters treatment containing phenol and ammonium using aerobic submerged membrane bioreactor |
title_full_unstemmed |
Wastewaters treatment containing phenol and ammonium using aerobic submerged membrane bioreactor |
title_sort |
wastewaters treatment containing phenol and ammonium using aerobic submerged membrane bioreactor |
publisher |
BMC |
series |
Chemistry Central Journal |
issn |
1752-153X |
publishDate |
2018-07-01 |
description |
Abstract Phenolic wastewater was treated using anaerobic submerged membrane bioreactor (ASMBR). Effect of different solids retention times on MBR performance was studied. Various ratios of carbon to nitrogen were used in the synthetic wastewaters. During the operation, phenol concentration of feed was changed from 100 to 1000 mg L−1. Phenol concentration was increased stepwise over the first 30 days and kept constant at 1000 mg L−1, thereafter. For the first 100 days, a chemical oxygen demand (COD) to N ratio of 100:5.0 was used and this resulted in phenol and COD removal more than 99 and 95%, respectively. However, the ammonium removal decreased from 95 to 40% by increasing the phenol concentration of feed, from 100 to 1000 mg L−1. For the last 25 days, a COD to N ratio of 100:2.1 was used due to the ammonium accumulation in the ASMBR. This led to the complete ammonium removal and no ammonium was detected in the ASMBR permeate. These results suggest that in the ASMBR at high phenol loading of 1000 mg L−1, COD to N ratio of the phenolic wastewater must be 100:2.1 for ammonium removal, while at low phenol loading, COD to N ratio of 100:5.0 can be used. |
topic |
Membrane Hollow fiber Wastewater Ammonium removal Environment |
url |
http://link.springer.com/article/10.1186/s13065-018-0450-1 |
work_keys_str_mv |
AT mashallahrezakazemi wastewaterstreatmentcontainingphenolandammoniumusingaerobicsubmergedmembranebioreactor AT mohsenmaghami wastewaterstreatmentcontainingphenolandammoniumusingaerobicsubmergedmembranebioreactor AT torajmohammadi wastewaterstreatmentcontainingphenolandammoniumusingaerobicsubmergedmembranebioreactor |
_version_ |
1721227936754827264 |