Effects of Enhanced A/O-MBR on Treating Domestic Sewage with Low C/N Ratio and Membrane Fouling
By adding polyurethane foam (PUF) carriers in a conventional A/O-MBR (CMBR),an enhanced A/O-MBR (HMBR) is developed and operates in parallel with CMBR to treat domestic sewage with a low C/N ratio.The results reveal that the effluent quality by HMBR is significantly better than that by CMBR.The aver...
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Editorial Office of Pearl River
2022-01-01
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| Series: | Renmin Zhujiang |
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| Online Access: | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.04.014 |
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| author | YANG Chao LI Jie MA Donghua |
| author_facet | YANG Chao LI Jie MA Donghua |
| author_sort | YANG Chao |
| collection | DOAJ |
| description | By adding polyurethane foam (PUF) carriers in a conventional A/O-MBR (CMBR),an enhanced A/O-MBR (HMBR) is developed and operates in parallel with CMBR to treat domestic sewage with a low C/N ratio.The results reveal that the effluent quality by HMBR is significantly better than that by CMBR.The average removal rates of COD,ammonia nitrogen,and total nitrogen by HMBR are 83.88%,67.24%,and 50.39%,respectively,while those by CMBR are 81.96%,59.97%,and 46.32%,respectively.In addition,HMBR and CMBR reach the lowest membrane flux,i.e.,0.19 and 0.20 L/(m<sup>2</sup>·h),on the 46th and 70th days of continuous operation,respectively.HMBR can effectively prolong the operation time of the membrane module and reduce the degree of fouling,and it can recover to 46.50% of the initial membrane flux after physical flushing and 93.7% of the initial membrane flux after physical-chemical washing.Therefore,the addition of PUF carriers not only strengthens the treatment performance of A/O-MBR but also effectively reduces membrane fouling. |
| format | Article |
| id | doaj-art-8c1d80811b61491cb04a60f1c0c42190 |
| institution | Kabale University |
| issn | 1001-9235 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Pearl River |
| record_format | Article |
| series | Renmin Zhujiang |
| spelling | doaj-art-8c1d80811b61491cb04a60f1c0c421902025-01-15T02:27:16ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352022-01-014347644987Effects of Enhanced A/O-MBR on Treating Domestic Sewage with Low C/N Ratio and Membrane FoulingYANG ChaoLI JieMA DonghuaBy adding polyurethane foam (PUF) carriers in a conventional A/O-MBR (CMBR),an enhanced A/O-MBR (HMBR) is developed and operates in parallel with CMBR to treat domestic sewage with a low C/N ratio.The results reveal that the effluent quality by HMBR is significantly better than that by CMBR.The average removal rates of COD,ammonia nitrogen,and total nitrogen by HMBR are 83.88%,67.24%,and 50.39%,respectively,while those by CMBR are 81.96%,59.97%,and 46.32%,respectively.In addition,HMBR and CMBR reach the lowest membrane flux,i.e.,0.19 and 0.20 L/(m<sup>2</sup>·h),on the 46th and 70th days of continuous operation,respectively.HMBR can effectively prolong the operation time of the membrane module and reduce the degree of fouling,and it can recover to 46.50% of the initial membrane flux after physical flushing and 93.7% of the initial membrane flux after physical-chemical washing.Therefore,the addition of PUF carriers not only strengthens the treatment performance of A/O-MBR but also effectively reduces membrane fouling.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.04.014domestic sewage with a low C/N ratioenhanced A/O-MBRPUF carriermembrane fouling |
| spellingShingle | YANG Chao LI Jie MA Donghua Effects of Enhanced A/O-MBR on Treating Domestic Sewage with Low C/N Ratio and Membrane Fouling Renmin Zhujiang domestic sewage with a low C/N ratio enhanced A/O-MBR PUF carrier membrane fouling |
| title | Effects of Enhanced A/O-MBR on Treating Domestic Sewage with Low C/N Ratio and Membrane Fouling |
| title_full | Effects of Enhanced A/O-MBR on Treating Domestic Sewage with Low C/N Ratio and Membrane Fouling |
| title_fullStr | Effects of Enhanced A/O-MBR on Treating Domestic Sewage with Low C/N Ratio and Membrane Fouling |
| title_full_unstemmed | Effects of Enhanced A/O-MBR on Treating Domestic Sewage with Low C/N Ratio and Membrane Fouling |
| title_short | Effects of Enhanced A/O-MBR on Treating Domestic Sewage with Low C/N Ratio and Membrane Fouling |
| title_sort | effects of enhanced a o mbr on treating domestic sewage with low c n ratio and membrane fouling |
| topic | domestic sewage with a low C/N ratio enhanced A/O-MBR PUF carrier membrane fouling |
| url | http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.04.014 |
| work_keys_str_mv | AT yangchao effectsofenhancedaombrontreatingdomesticsewagewithlowcnratioandmembranefouling AT lijie effectsofenhancedaombrontreatingdomesticsewagewithlowcnratioandmembranefouling AT madonghua effectsofenhancedaombrontreatingdomesticsewagewithlowcnratioandmembranefouling |