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Chen F, Zhou Y, Wang L, Wang P, Wang T, Ravindran B, Mishra S, Chen S, Cui X, Yang Y, Zhang W. Elucidating the degradation mechanisms of perfluorooctanoic acid and perfluorooctane sulfonate in various environmental matrices: a review of green degradation pathways. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:349. [PMID: 39073492 DOI: 10.1007/s10653-024-02134-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Accepted: 07/15/2024] [Indexed: 07/30/2024]
Abstract
Given environmental persistence, potential for bioaccumulation, and toxicity of Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), the scientific community has increasingly focused on researching their toxicology and degradation methods. This paper presents a survey of recent research advances in the toxicological effects and degradation methods of PFOA and PFOS. Their adverse effects on the liver, nervous system, male reproductive system, genetics, and development are detailed. Additionally, the degradation techniques of PFOA and PFOS, including photochemical, photocatalytic, and electrochemical methods, are analyzed and compared, highlighted the potential of these technologies for environmental remediation. The biotransformation pathways and mechanisms of PFOA and PFOS involving microorganisms, plants, and enzymes are also presented. As the primary green degradation pathway for PFOA and PFOS, Biodegradation uses specific microorganisms, plants or enzymes to remove PFOA and PFOS from the environment through redox reactions, enzyme catalysis and other pathways. Currently, there has been a paucity of research conducted on the biodegradation of PFOA and PFOS. However, this degradation technology is promising owing to its specificity, cost-effectiveness, and ease of implementation. Furthermore, novel materials/methods for PFOA and PFOS degradation are presented in this paper. These novel materials/methods effectively improve the degradation efficiency of PFOA and PFOS and provide new ideas and tools for the degradation of PFOA and PFOS. This information can assist researchers in identifying flaws and gaps in the field, which can facilitate the formulation of innovative research ideas.
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Affiliation(s)
- Feiyu Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Kunming, 650500, Yunnan, China
| | - Yi Zhou
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Kunming, 650500, Yunnan, China
| | - Liping Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Kunming, 650500, Yunnan, China
| | - Pengfei Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Kunming, 650500, Yunnan, China
| | - Tianyue Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Kunming, 650500, Yunnan, China
| | - Balasubramani Ravindran
- Department of Environmental Energy and Engineering, Kyonggi University, Suwon-si, Gyeonggi-do, 16227, South Korea
| | - Sandhya Mishra
- Environmental Technologies Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001, India
| | - Shaohua Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Province Key Laboratory of Microbial Signals and Disease Control, Integrative Microbiology Research Centre, South China Agricultural University, Guangzhou, 510642, China
| | - Xiuming Cui
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Kunming, 650500, Yunnan, China
| | - Ye Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China.
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Kunming, 650500, Yunnan, China.
| | - Wenping Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, China.
- Key Laboratory of Sustainable Utilization of Panax Notoginseng Resources of Yunnan Province, Kunming, 650500, Yunnan, China.
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Fan Y, Sun S, Gu X, Zhang M, Peng Y, Yan P, He S. Boosting the denitrification efficiency of iron-based constructed wetlands in-situ via plant biomass-derived biochar: Intensified iron redox cycle and microbial responses. WATER RESEARCH 2024; 253:121285. [PMID: 38354664 DOI: 10.1016/j.watres.2024.121285] [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: 12/05/2023] [Revised: 01/22/2024] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
Considering the unsatisfied denitrification performance of carbon-limited wastewater in iron-based constructed wetlands (ICWs) caused by low electron transfer efficiency of iron substrates, utilization of plant-based conductive materials in-situ for improving the long-term reactivity of iron substrates was proposed to boost the Fe (III)/Fe (II) redox cycle thus enhance the nitrogen elimination. Here, we investigated the effects of withered Iris Pseudacorus biomass and its derived biochar on nitrogen removal for 165 days in ICWs. Results revealed that accumulate TN removal capacity in biochar-added ICW (BC-ICW) increased by 14.7 % compared to biomass-added ICW (BM-ICW), which was mainly attributed to the synergistic strengthening of iron scraps and biochar. The denitrification efficiency of BM-ICW improved by 11.6 % compared to ICWs, while its removal capacity declined with biomass consumption. Autotrophic and heterotrophic denitrifiers were enriched in BM-ICW and BC-ICW, especially biochar increased the abundance of electroactive species (Geobacter and Shewanella, etc.). An active iron cycle exhibited in BC-ICW, which can be confirmed by the presence of more liable iron minerals on iron scraps surface, the lowest Fe (III)/Fe (II) ratio (0.51), and the improved proportions of iron cycling genes (feoABC, korB, fhuF, TC.FEV.OM, etc.). The nitrate removal efficiency was positively correlated with the nitrogen, iron metabolism functional genes and the electron transfer capacity (ETC) of carbon materials (P < 0.05), indicating that redox-active carbon materials addition improved the iron scraps bioavailability by promoting electron transfer, thus enhancing the autotrophic nitrogen removal. Our findings provided a green perspective to better understand the redox properties of plant-based carbon materials in ICWs for deep bioremediation in-situ.
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Affiliation(s)
- Yuanyuan Fan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shanshan Sun
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Xushun Gu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Manping Zhang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Yuanyuan Peng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Pan Yan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shengbing He
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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