Improvement on filterability in the aerobic treatment of carboxymethyl cellulose (CMC) wastewater
CMC is chemically modified from natural cellulose and widely applied in various industries. CMC wastewater consists mainly of sodium glycolate, sodium chloride and water. With extremely high COD and salinity, high concentration CMC wastewater can’t be biologically treated, but with COD and...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Association of the Chemical Engineers of Serbia
2014-01-01
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| Series: | Chemical Industry and Chemical Engineering Quarterly |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1451-9372/2014/1451-93721300031Q.pdf |
| _version_ | 1811269352797765632 |
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| author | Qing Pei Ye Hui Chen Dong Ming Zhou Gong Qin Lu Qiang Ma Ji |
| author_facet | Qing Pei Ye Hui Chen Dong Ming Zhou Gong Qin Lu Qiang Ma Ji |
| author_sort | Qing Pei Ye |
| collection | DOAJ |
| description | CMC is chemically modified from natural cellulose and widely applied in
various industries. CMC wastewater consists mainly of sodium glycolate,
sodium chloride and water. With extremely high COD and salinity, high
concentration CMC wastewater can’t be biologically treated, but with COD and
salinity around 15000 mg/L and 30000 mg/L respectively, low concentration
CMC wastewater can be aerobically treated. In a CMC factory, the treatment
of low concentration wastewater with aerobic MBR was successful except for
one serious problem: poor filterability. Two trial solutions: adding
micronutrients and applying MBBR were expected to improve the filterability.
In the experiment, adding micronutrients was achieved by mixing filtered
natural water into the wastewater, rather than dosing chemicals into it. The
treatment efficiency of both solutions was close, but adding micronutrients
showed distinguished performance in improving filterability, which includes
higher filtration flux and slighter membrane fouling. Adding micronutrients
also effectively improved the filterability under severe salinity shock. |
| first_indexed | 2024-04-12T21:39:24Z |
| format | Article |
| id | doaj.art-f20d4dc41c1544b0a19f1bb64fc902bc |
| institution | Directory Open Access Journal |
| issn | 1451-9372 2217-7434 |
| language | English |
| last_indexed | 2024-04-12T21:39:24Z |
| publishDate | 2014-01-01 |
| publisher | Association of the Chemical Engineers of Serbia |
| record_format | Article |
| series | Chemical Industry and Chemical Engineering Quarterly |
| spelling | doaj.art-f20d4dc41c1544b0a19f1bb64fc902bc2022-12-22T03:15:48ZengAssociation of the Chemical Engineers of SerbiaChemical Industry and Chemical Engineering Quarterly1451-93722217-74342014-01-0120449150110.2298/CICEQ130227031Q1451-93721300031QImprovement on filterability in the aerobic treatment of carboxymethyl cellulose (CMC) wastewaterQing Pei Ye0Hui Chen Dong1Ming Zhou Gong2Qin Lu3Qiang Ma Ji4College of Environmental Science and Engineering, Donghua University, Songjiang District, Shanghai, P.R. ChinaCollege of Environmental Science and Engineering, Donghua University, Songjiang District, Shanghai, P.R. ChinaNational Engineering Research Center for Urban Pollution Control, Tongji University Yangpu District, Shanghai, P.R. ChinaNational Engineering Research Center for Urban Pollution Control, Tongji University Yangpu District, Shanghai, P.R. ChinaSchool of Ocean and Earth Science, Tongji University, Yangpu District, Shanghai, P.R.ChinaCMC is chemically modified from natural cellulose and widely applied in various industries. CMC wastewater consists mainly of sodium glycolate, sodium chloride and water. With extremely high COD and salinity, high concentration CMC wastewater can’t be biologically treated, but with COD and salinity around 15000 mg/L and 30000 mg/L respectively, low concentration CMC wastewater can be aerobically treated. In a CMC factory, the treatment of low concentration wastewater with aerobic MBR was successful except for one serious problem: poor filterability. Two trial solutions: adding micronutrients and applying MBBR were expected to improve the filterability. In the experiment, adding micronutrients was achieved by mixing filtered natural water into the wastewater, rather than dosing chemicals into it. The treatment efficiency of both solutions was close, but adding micronutrients showed distinguished performance in improving filterability, which includes higher filtration flux and slighter membrane fouling. Adding micronutrients also effectively improved the filterability under severe salinity shock.http://www.doiserbia.nb.rs/img/doi/1451-9372/2014/1451-93721300031Q.pdfcarboxymethyl cellulosefilterabilitymembrane foulingmicronutrientssaline wastewater highlights |
| spellingShingle | Qing Pei Ye Hui Chen Dong Ming Zhou Gong Qin Lu Qiang Ma Ji Improvement on filterability in the aerobic treatment of carboxymethyl cellulose (CMC) wastewater Chemical Industry and Chemical Engineering Quarterly carboxymethyl cellulose filterability membrane fouling micronutrients saline wastewater highlights |
| title | Improvement on filterability in the aerobic treatment of carboxymethyl cellulose (CMC) wastewater |
| title_full | Improvement on filterability in the aerobic treatment of carboxymethyl cellulose (CMC) wastewater |
| title_fullStr | Improvement on filterability in the aerobic treatment of carboxymethyl cellulose (CMC) wastewater |
| title_full_unstemmed | Improvement on filterability in the aerobic treatment of carboxymethyl cellulose (CMC) wastewater |
| title_short | Improvement on filterability in the aerobic treatment of carboxymethyl cellulose (CMC) wastewater |
| title_sort | improvement on filterability in the aerobic treatment of carboxymethyl cellulose cmc wastewater |
| topic | carboxymethyl cellulose filterability membrane fouling micronutrients saline wastewater highlights |
| url | http://www.doiserbia.nb.rs/img/doi/1451-9372/2014/1451-93721300031Q.pdf |
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