|
1
|
Liu N, Yao YY, Zhang J, Zhang JG, Wu C, Ouyang DJ, Zou CY, Yang ZQ, Li JX. Reduction characteristic of chlorobenzene by a newly isolated Paenarthrobacter ureafaciens LY from a pharmaceutical wastewater treatment plant. Cell Biochem Funct 2024; 42:e3965. [PMID: 38457283 DOI: 10.1002/cbf.3965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/10/2024]
Abstract
A highly efficient chlorobenzene-degrading strain was isolated from the sludge of a sewage treatment plant associated with a pharmaceutical company. The strain exhibited a similarity of over 99.9% with multiple strains of Paenarthrobacter ureafaciens. Therefore, the strain was suggested to be P. ureafaciens LY. This novel strain exhibited a broad spectrum of pollutant degradation capabilities, effectively degrading chlorobenzene and other organic pollutants, such as 1, 2, 4-trichlorobenzene, phenol, and xylene. Moreover, P. ureafaciens LY co-metabolized mixtures of chlorobenzene with 1, 2, 4-trichlorobenzene or phenol. Evaluation of its degradation efficiency showed that it achieved an impressive degradation rate of 94.78% for chlorobenzene within 8 h. The Haldane-Andrews model was used to describe the growth of P. ureafaciens LY under specific pollutants and its concentrations, revealing a maximum specific growth rate (μmax ) of 0.33 h-1 . The isolation and characterization of P. ureafaciens LY, along with its ability to degrade chlorobenzene, provides valuable insights for the development of efficient and eco-friendly approaches to mitigate chlorobenzene contamination. Additionally, investigation of the degradation performance of the strain in the presence of other pollutants offers important information for understanding the complexities of co-metabolism in mixed-pollutant environments.
Collapse
Affiliation(s)
- Nan Liu
- Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou, Henan, China
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Yan-Yan Yao
- Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou, Henan, China
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Jin Zhang
- Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou, Henan, China
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Ji-Guo Zhang
- Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou, Henan, China
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Chao Wu
- Zhejiang Ecology and Environment Group Co., Ltd., Hangzhou, China
| | - Du-Juan Ouyang
- College of Chemical Engineering, Zhengzhou University, Zhengzhou, China
| | - Chang-Yong Zou
- Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou, Henan, China
- Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Zhen-Qiang Yang
- Institute of Chemistry Co. Ltd, Henan Academy of Sciences, Zhengzhou, China
| | - Ji-Xiang Li
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
|
2
|
Liu H, Yu Y, Jiang S, Sun H, Zhang W, Chen J, Chen D. Enhancement of gaseous chlorobenzene biodegradation and power generation in a microbial fuel cell by bifunctional Acinetobacter sp. HY-99C. CHEMOSPHERE 2024; 350:141105. [PMID: 38171394 DOI: 10.1016/j.chemosphere.2023.141105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 12/11/2023] [Accepted: 12/31/2023] [Indexed: 01/05/2024]
Abstract
The efficient biodegradation of volatile chlorinated hydrocarbons using microbial fuel cells (MFCs) offers a feasible approach for purifying waste gas and alleviating energy crises. However, power generation is limited by poor pollutant biodegradation and slow electron transfer. The bifunctional bacterium Acinetobacter sp. HY-99C was screened and used to improve the performance of a conventional MFC. The inoculation of strain HY-99C into the conventional MFC promoted the formation of a compact biofilm with high metabolic activity and an enriched bifunctional genus (Acinetobacter), which resulted in the accelerated decomposition of chlorinated aromatic compounds into biodegradable organic acids. This led to efficient chlorobenzene removal and power generation from the MFC, with a chlorobenzene elimination capacity of 70.8 g m-3 h-1 and power density of 89.6 mW m-2, which are improved over those of previously reported MFCs. This study provides novel insights into enhancing pollutant removal and power generation in MFCs.
Collapse
Affiliation(s)
- Haoyang Liu
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, 318000, China; College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Yang Yu
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China; National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Shengtao Jiang
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, 318000, China
| | - Haimin Sun
- Zhejiang Zhonglan Environmental Technology Co., Ltd, China
| | - Weixi Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Jianmeng Chen
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China; College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China; National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Dongzhi Chen
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, 318000, China; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China; College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China; National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China.
| |
Collapse
|
|
3
|
Wang J, Wu Y, Zhang C, Geng A, Sun Z, Yang J, Xi J, Wang L, Yang B. Effect of weak electrical stimulation on m-dichlorobenzene biodegradation in biotrickling filters: Insights from performance and microbial community analysis. BIORESOURCE TECHNOLOGY 2023; 390:129881. [PMID: 37852508 DOI: 10.1016/j.biortech.2023.129881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/14/2023] [Accepted: 10/14/2023] [Indexed: 10/20/2023]
Abstract
The microbial electrolysis cell coupled with the biotrickling filters (MEC-BTF) was developed for enhancing the biodegradation of gaseous m-dichlorobenzene (m-DCB) through weak electrical stimulation. The maximum removal efficiency and elimination capacity in MEC-BTF were 1.48 and 1.65 times higher than those in open-circuit BTF (OC-BTF), respectively. Weak electrical stimulation had a positive impact on the characteristics of the biofilm. Additionally, microbial community analysis revealed that weak electrical stimulation increased the abundance of key functional genera (e.g., Rhodanobacter and Bacillus) and genes (e.g., catA/E and E1.3.1.32), thereby accelerating reductive dechlorination and ring-opening of m-DCB. Macrogenomic sequencing further revealed that electron transfer pathway in MEC-BTF might be mediated through extracellular electroactive mediators and cytochromes.
Collapse
Affiliation(s)
- Jiajie Wang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Yu Wu
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
| | - Caiyun Zhang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Anqi Geng
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Zhuqiu Sun
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Jiawei Yang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Jinying Xi
- Environmental Simulation and Pollution Control State Key Joint Laboratory, School of Environment, Tsinghua University, Beijing 100084, China
| | - Liping Wang
- School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China
| | - Bairen Yang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
| |
Collapse
|
|
4
|
Qin C, Jiang C, Liu R, Huang J, Yu R, Zhang P. Nonthermal plasma coupled with liquid-phase UV/Fe-C for chlorobenzene removal. CHEMOSPHERE 2023:139279. [PMID: 37356590 DOI: 10.1016/j.chemosphere.2023.139279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 06/27/2023]
Abstract
Catalyst poisoning problems limit the application of gas-solid non-thermal plasma (NTP) catalyzed decomposition of chlorinated volatile organic compounds (Cl-VOCs). To mitigate the catalyst deactivation, catalyst iron-loaded activated carbon (Fe-C) was added to the UV-activated liquid phase downstream of the NTP reactor (NTP + UV/Fe-C(L)) for the degradation of chlorobenzene (CB) in this study. The CB removal efficiency and mineralization efficiency (MR) of NTP + UV/Fe-C(L) were up to 94% and 68%, respectively, which were increased by 39% and 30% compared with the single NTP system. Compared with the conventional gas-solid NTP + UV/Fe-C(S) system, the stability of the NTP + UV/Fe-C(L) system was significantly improved due to the dissolved organic intermediates and low residuals on the catalyst surface. Reactive oxygen species ·OH and ·O2- dominated the decomposition of CB in the liquid phase, and with the help of UV, much more ·OH and ·O2- were produced by Fe-C catalytic O3. In addition, Fe-C improved the removal of CB by increasing its absorption mass transfer coefficient from 0.0016 to 0.0157 s-1. The degradation pathway of CB in the NTP + UV/Fe-C(L) system was proposed based on the detected organic intermediates. Overall, this study provides a new tactic to solve the catalyst poisoning problem in the NTP catalytic oxidation of Cl-VOCs.
Collapse
Affiliation(s)
- Caihong Qin
- School of Environment & Municipal Engineering, Xi'an University of Architecture & Technology, Xi'an, 710055, China.
| | - Chaochao Jiang
- School of Environment & Municipal Engineering, Xi'an University of Architecture & Technology, Xi'an, 710055, China
| | - Rongrong Liu
- School of Environment & Municipal Engineering, Xi'an University of Architecture & Technology, Xi'an, 710055, China
| | - Jiayu Huang
- Research Center of Air Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Rui Yu
- Research Center of Air Pollution Control Technology, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Peng Zhang
- School of Environment & Municipal Engineering, Xi'an University of Architecture & Technology, Xi'an, 710055, China
| |
Collapse
|