Effects of Fe3+ on EPS secretion and membrane fouling of microalgae-bacteria symbionts for breeding wastewater treatment
By cultivating microalgae-bacteria consortia in breeding wastewater with varying concentrations of Fe3+, this study investigated the impact of Fe3+ on the secretion of extracellular polymeric substances(EPS) by the consortia. The extracted EPS components were fractionated, and membrane fouling tests...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Industrial Water Treatment
2024-10-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1003 |
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| author | TIAN Maozhi DING Ziyao SUN Chen ZHOU Weiyu WANG Shengzhi WAN Hanyu LI Kun |
| author_facet | TIAN Maozhi DING Ziyao SUN Chen ZHOU Weiyu WANG Shengzhi WAN Hanyu LI Kun |
| author_sort | TIAN Maozhi |
| collection | DOAJ |
| description | By cultivating microalgae-bacteria consortia in breeding wastewater with varying concentrations of Fe3+, this study investigated the impact of Fe3+ on the secretion of extracellular polymeric substances(EPS) by the consortia. The extracted EPS components were fractionated, and membrane fouling tests were conducted to examine the changes in membrane fouling characteristics by the microalgae-bacteria mixed liquor and each component. The experimental results indicated that the addition of Fe3+ effectively mitigated membrane fouling, with the least fouling observed at iron mass concentration of 150 mg/L. The Hermia classic model was used to fit and analyze the membrane flux attenuation process. The results showed that the formation of the filter cake layer was one of the main causes of membrane fouling. In addition, an increase of Fe3+ would cause changes in the particle size of microbial flocs, which would have a significant impact on membrane fouling. Analysis of the membrane surface foulants showed that the main components were tryptophan-like proteins, tyrosine-like proteins, and microbial metabolic by-products. |
| format | Article |
| id | doaj-art-c7242b2d7bcd41739de6afbad5cc30ef |
| institution | OA Journals |
| issn | 1005-829X |
| language | zho |
| publishDate | 2024-10-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-c7242b2d7bcd41739de6afbad5cc30ef2025-08-20T02:38:29ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2024-10-014410606710.19965/j.cnki.iwt.2023-10031005-829X（2024）10-0060-08Effects of Fe3+ on EPS secretion and membrane fouling of microalgae-bacteria symbionts for breeding wastewater treatmentTIAN Maozhi0DING Ziyao1SUN Chen2ZHOU Weiyu3WANG Shengzhi4WAN Hanyu5LI Kun6Key Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resource ＆ Environment, Nanchang University, Nanchang 330031, ChinaKey Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resource ＆ Environment, Nanchang University, Nanchang 330031, ChinaKey Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resource ＆ Environment, Nanchang University, Nanchang 330031, ChinaKey Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resource ＆ Environment, Nanchang University, Nanchang 330031, ChinaKey Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resource ＆ Environment, Nanchang University, Nanchang 330031, ChinaKey Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resource ＆ Environment, Nanchang University, Nanchang 330031, ChinaKey Laboratory of Poyang Lake Environment and Resources Utilization, Ministry of Education, School of Resource ＆ Environment, Nanchang University, Nanchang 330031, ChinaBy cultivating microalgae-bacteria consortia in breeding wastewater with varying concentrations of Fe3+, this study investigated the impact of Fe3+ on the secretion of extracellular polymeric substances(EPS) by the consortia. The extracted EPS components were fractionated, and membrane fouling tests were conducted to examine the changes in membrane fouling characteristics by the microalgae-bacteria mixed liquor and each component. The experimental results indicated that the addition of Fe3+ effectively mitigated membrane fouling, with the least fouling observed at iron mass concentration of 150 mg/L. The Hermia classic model was used to fit and analyze the membrane flux attenuation process. The results showed that the formation of the filter cake layer was one of the main causes of membrane fouling. In addition, an increase of Fe3+ would cause changes in the particle size of microbial flocs, which would have a significant impact on membrane fouling. Analysis of the membrane surface foulants showed that the main components were tryptophan-like proteins, tyrosine-like proteins, and microbial metabolic by-products.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1003microalgae-bacteria symbiontsextracellular polymeric substancesswine wastewaterfe3+membrane fouling |
| spellingShingle | TIAN Maozhi DING Ziyao SUN Chen ZHOU Weiyu WANG Shengzhi WAN Hanyu LI Kun Effects of Fe3+ on EPS secretion and membrane fouling of microalgae-bacteria symbionts for breeding wastewater treatment Gongye shui chuli microalgae-bacteria symbionts extracellular polymeric substances swine wastewater fe3+ membrane fouling |
| title | Effects of Fe3+ on EPS secretion and membrane fouling of microalgae-bacteria symbionts for breeding wastewater treatment |
| title_full | Effects of Fe3+ on EPS secretion and membrane fouling of microalgae-bacteria symbionts for breeding wastewater treatment |
| title_fullStr | Effects of Fe3+ on EPS secretion and membrane fouling of microalgae-bacteria symbionts for breeding wastewater treatment |
| title_full_unstemmed | Effects of Fe3+ on EPS secretion and membrane fouling of microalgae-bacteria symbionts for breeding wastewater treatment |
| title_short | Effects of Fe3+ on EPS secretion and membrane fouling of microalgae-bacteria symbionts for breeding wastewater treatment |
| title_sort | effects of fe3 on eps secretion and membrane fouling of microalgae bacteria symbionts for breeding wastewater treatment |
| topic | microalgae-bacteria symbionts extracellular polymeric substances swine wastewater fe3+ membrane fouling |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2023-1003 |
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