Biodegradation of nitrate and p-bromophenol using hydrogen-based membrane biofilm reactors in parallel

ABSTRACTP-bromophenol (4-BP) is a toxic halogenated phenolic organic compound. The conventional treatment processes for 4-BP elimination are costly and inefficient, with complete mineralization remaining a challenge for water treatment. To overcome these limitations, we investigated the treatment of...

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Veröffentlicht in:Environmental technology. - 1993. - 45(2024), 22 vom: 05. Sept., Seite 4550-4564
1. Verfasser: Chen, Bo (VerfasserIn)
Weitere Verfasser: Dong, Kun, Xu, Yufeng, Jiang, Minmin, Zheng, Junjian, Zeng, Honghu, Zhang, Xuehong, Chen, Yuchao, Li, Haixiang
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Hydrogen-based-membrane biofilm reactor P-bromophenol community analysis debromination degradation pathways Nitrates Hydrogen 7YNJ3PO35Z Water Pollutants, Chemical mehr... Phenols Membranes, Artificial RNA, Ribosomal, 16S
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520 |a ABSTRACTP-bromophenol (4-BP) is a toxic halogenated phenolic organic compound. The conventional treatment processes for 4-BP elimination are costly and inefficient, with complete mineralization remaining a challenge for water treatment. To overcome these limitations, we investigated the treatment of 4-BP in a membrane biofilm reactor (MBfR) using hydrogen as an electron donor. The pathway of 4-BP degradation within the H2-MBfR was investigated through long-term operational experiments by considering the effect of nitrate and 4-BP concentrations, hydrogen partial pressure, static experiments, and microbial community diversity, which was studied using 16S rRNA. The results showed that H2-MBfR could quickly remove approximately 100% of 4-BP (up to 20 mg/L), with minimal intermediate product accumulation and 10 mg/L of nitrate continuously reduced. The microbial community structure showed that the presence of H2 created an anaerobic environment, and Thauera was the dominant functional genus involved in the degradation of 4-BP. The genes encoding related enzymes were further enhanced. This study provides an economically viable and environmentally friendly bioremediation technique for water bodies that contain 4-BP and nitrates 
650 4 |a Journal Article 
650 4 |a Hydrogen-based-membrane biofilm reactor 
650 4 |a P-bromophenol 
650 4 |a community analysis 
650 4 |a debromination 
650 4 |a degradation pathways 
650 7 |a Nitrates  |2 NLM 
650 7 |a Hydrogen  |2 NLM 
650 7 |a 7YNJ3PO35Z  |2 NLM 
650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a Phenols  |2 NLM 
650 7 |a Membranes, Artificial  |2 NLM 
650 7 |a RNA, Ribosomal, 16S  |2 NLM 
700 1 |a Dong, Kun  |e verfasserin  |4 aut 
700 1 |a Xu, Yufeng  |e verfasserin  |4 aut 
700 1 |a Jiang, Minmin  |e verfasserin  |4 aut 
700 1 |a Zheng, Junjian  |e verfasserin  |4 aut 
700 1 |a Zeng, Honghu  |e verfasserin  |4 aut 
700 1 |a Zhang, Xuehong  |e verfasserin  |4 aut 
700 1 |a Chen, Yuchao  |e verfasserin  |4 aut 
700 1 |a Li, Haixiang  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Environmental technology  |d 1993  |g 45(2024), 22 vom: 05. Sept., Seite 4550-4564  |w (DE-627)NLM098202545  |x 1479-487X  |7 nnns 
773 1 8 |g volume:45  |g year:2024  |g number:22  |g day:05  |g month:09  |g pages:4550-4564 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2023.2259091  |3 Volltext 
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