A Functionalized Polysaccharide from <i>Sphingomonas</i> sp. HL-1 for High-Performance Flocculation
The characterization and flocculation mechanism of a biopolymer flocculant produced by <i>Sphingomonas</i> sp. HL-1, were investigated. The bio-flocculant HL1 was identified as an acidic polysaccharide, mainly composed of glucose, and also contained a small amount of mannose, galacturoni...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-12-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/15/1/56 |
| _version_ | 1797440018364497920 |
|---|---|
| author | Haolin Huang Jingsong Li Weiyi Tao Shuang Li |
| author_facet | Haolin Huang Jingsong Li Weiyi Tao Shuang Li |
| author_sort | Haolin Huang |
| collection | DOAJ |
| description | The characterization and flocculation mechanism of a biopolymer flocculant produced by <i>Sphingomonas</i> sp. HL-1, were investigated. The bio-flocculant HL1 was identified as an acidic polysaccharide, mainly composed of glucose, and also contained a small amount of mannose, galacturonic acid and guluronic acid. The flocculating activity of the purified HL1 polysaccharide could be activated by trivalent cations, and its flocculation mechanism was mainly charge neutralization and bridging. The working concentration of fermentation broth HL1 in a kaolin suspension was only 1/10,000 (<i>v</i>/<i>v</i>), in which the polysaccharide concentration was about 2 mg/L. The bio-flocculant HL1 maintained high efficiency at a wide range of pH (pH 3–10). It also exhibited good flocculating activity at a temperature range of 20–40 °C; it could even tolerate high salinity and kept activity at a mineralization degree of 50,000 mg/L. Therefore, the bio-flocculant HL1 has a good application prospect in the treatment of wastewater over a broad pH range and in high salinity. |
| first_indexed | 2024-03-09T12:01:01Z |
| format | Article |
| id | doaj.art-c6ae26e6bde943bba1f9bb17a98c67a6 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T12:01:01Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-c6ae26e6bde943bba1f9bb17a98c67a62023-11-30T23:03:36ZengMDPI AGPolymers2073-43602022-12-011515610.3390/polym15010056A Functionalized Polysaccharide from <i>Sphingomonas</i> sp. HL-1 for High-Performance FlocculationHaolin Huang0Jingsong Li1Weiyi Tao2Shuang Li3College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, ChinaCollege of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, ChinaThe characterization and flocculation mechanism of a biopolymer flocculant produced by <i>Sphingomonas</i> sp. HL-1, were investigated. The bio-flocculant HL1 was identified as an acidic polysaccharide, mainly composed of glucose, and also contained a small amount of mannose, galacturonic acid and guluronic acid. The flocculating activity of the purified HL1 polysaccharide could be activated by trivalent cations, and its flocculation mechanism was mainly charge neutralization and bridging. The working concentration of fermentation broth HL1 in a kaolin suspension was only 1/10,000 (<i>v</i>/<i>v</i>), in which the polysaccharide concentration was about 2 mg/L. The bio-flocculant HL1 maintained high efficiency at a wide range of pH (pH 3–10). It also exhibited good flocculating activity at a temperature range of 20–40 °C; it could even tolerate high salinity and kept activity at a mineralization degree of 50,000 mg/L. Therefore, the bio-flocculant HL1 has a good application prospect in the treatment of wastewater over a broad pH range and in high salinity.https://www.mdpi.com/2073-4360/15/1/56bio-flocculant<i>Sphingomonas</i>sphinganspolysaccharidewastewater treatment |
| spellingShingle | Haolin Huang Jingsong Li Weiyi Tao Shuang Li A Functionalized Polysaccharide from <i>Sphingomonas</i> sp. HL-1 for High-Performance Flocculation Polymers bio-flocculant <i>Sphingomonas</i> sphingans polysaccharide wastewater treatment |
| title | A Functionalized Polysaccharide from <i>Sphingomonas</i> sp. HL-1 for High-Performance Flocculation |
| title_full | A Functionalized Polysaccharide from <i>Sphingomonas</i> sp. HL-1 for High-Performance Flocculation |
| title_fullStr | A Functionalized Polysaccharide from <i>Sphingomonas</i> sp. HL-1 for High-Performance Flocculation |
| title_full_unstemmed | A Functionalized Polysaccharide from <i>Sphingomonas</i> sp. HL-1 for High-Performance Flocculation |
| title_short | A Functionalized Polysaccharide from <i>Sphingomonas</i> sp. HL-1 for High-Performance Flocculation |
| title_sort | functionalized polysaccharide from i sphingomonas i sp hl 1 for high performance flocculation |
| topic | bio-flocculant <i>Sphingomonas</i> sphingans polysaccharide wastewater treatment |
| url | https://www.mdpi.com/2073-4360/15/1/56 |
| work_keys_str_mv | AT haolinhuang afunctionalizedpolysaccharidefromisphingomonasisphl1forhighperformanceflocculation AT jingsongli afunctionalizedpolysaccharidefromisphingomonasisphl1forhighperformanceflocculation AT weiyitao afunctionalizedpolysaccharidefromisphingomonasisphl1forhighperformanceflocculation AT shuangli afunctionalizedpolysaccharidefromisphingomonasisphl1forhighperformanceflocculation AT haolinhuang functionalizedpolysaccharidefromisphingomonasisphl1forhighperformanceflocculation AT jingsongli functionalizedpolysaccharidefromisphingomonasisphl1forhighperformanceflocculation AT weiyitao functionalizedpolysaccharidefromisphingomonasisphl1forhighperformanceflocculation AT shuangli functionalizedpolysaccharidefromisphingomonasisphl1forhighperformanceflocculation |