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Li C, Yin S, Yan Y, Liang C, Ma Q, Guo R, Zhang Y, Deng J, Sun Z. Efficient benzo(a)pyrene degradation by coal gangue-based catalytic material for peroxymonosulfate activation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119645. [PMID: 38048711 DOI: 10.1016/j.jenvman.2023.119645] [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: 10/02/2023] [Revised: 11/05/2023] [Accepted: 11/15/2023] [Indexed: 12/06/2023]
Abstract
A low cost and green peroxymonosulfate (PMS) activation catalyst (CG-Ca-N) was successfully prepared with coal gangue (CG), calcium chloride, and melamine as activator. Under the optimal conditions, the CG-Ca-N can remove 100 % for benzo(a)pyrene (Bap) in an aqueous solution after 20 min and 72.06 % in soil slurry medium within 60 min, which also display excellent reuse ability toward Bap after three times. The removal of Bap is significantly decreased when the initial pH value was greater than 9 and obviously inhibited in the presence of HCO3- or SO42-. The characterization results indicated that the addition of calcium chloride could stabilize and increase the content of pyridinic N during thermal annealing, resulting in the production of •OH, SO4•- and 1O2. Based on electron paramagnetic resonance (EPR) and active radical scavenging experiments, 1O2 could be identified to be the dominant role in Bap degradation. Overall, this work opened a new perspective for the low cost and green PMS catalysts and offered great promise in the practical remediation of organic pollution of groundwater and soil.
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Affiliation(s)
- Chunquan Li
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Shuaijun Yin
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Yutong Yan
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Chao Liang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Qingshui Ma
- Inner Mongolia Mengtai Buliangou Coal Industry Co., Ltd, Ordos, 010399, PR China
| | - Rui Guo
- Inner Mongolia Mengtai Buliangou Coal Industry Co., Ltd, Ordos, 010399, PR China
| | - Yubo Zhang
- Huadian Coal Industry Group Digital Intelligence Technology Co., Ltd, Beijing, 102400, PR China
| | - Jiushuai Deng
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China
| | - Zhiming Sun
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, PR China.
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Shen M, Liu G, Zhou L, Yin H, Arif M, Leung KMY. Spatial distribution, driving factors and health risks of fine particle-bound polycyclic aromatic hydrocarbons (PAHs) from indoors and outdoors in Hefei, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 851:158148. [PMID: 35988617 DOI: 10.1016/j.scitotenv.2022.158148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/16/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Atmospheric particulate matter, especially in urban and industrial environments, can act as a source of different organic pollutants that can pose significant health impacts to residents. However, the pollution status and transport mechanisms of fine particle-bound polycyclic aromatic hydrocarbons (PAHs) in indoor and outdoor environments are uncertain. This study aimed to determine the spatial distribution and morphological characteristics of fine particle-bound PAHs and analyze the factors (source contributions and backward trajectories) that influence their concentrations. The results showed that mean concentrations of 16 PAHs were higher in indoor dust as compared to outdoor dust. In addition, the lowest concentrations of the 16 PAHs were found on the 11-20th floor, with smoking households > nonsmoking households (except Nap, Acy, and Ace). The 2-3 ring PAHs were more prominent in households with cooking activities. The particle size distribution showed that most of the particles were <62 μm in diameter, indicating that the indoor particles were smaller in size. Furthermore, the range of δ13C values in the outdoor dust (-30.17 ~ -28.63 ‰) samples was significantly lower than in indoor dust (-28.29 ~ -22.53 ‰). The results based on diagnostic ratios, positive matrix factorization (PMF) analysis and backward trajectory model analysis suggested that the sources of PAHs in indoor and outdoor dust were mixed, originated both locally and from neighboring provinces transported over long distances, especially concentrated in the Yangtze River Delta area. Finally, carcinogenic risk values for indoor dust were greater than those for outdoor dust. Therefore, it is recommended that local governments and industries with high PAH emissions should implement proper protocols to monitor and minimize the pollution levels of PAHs in the urban industrial environment in order to mitigate their health risks.
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Affiliation(s)
- Mengchen Shen
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China; State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong, China; Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Guijian Liu
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Li Zhou
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China; State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong, China; Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou, Jiangsu 215123, China
| | - Hao Yin
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Muhammad Arif
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Kenneth Mei Yee Leung
- State Key Laboratory of Marine Pollution and Department of Chemistry, City University of Hong Kong, Kowloon 999077, Hong Kong, China
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Zhang B, Wei W, Zhu H, Liu X, Lv L, Chen H. Polycyclic aromatic hydrocarbons in soils of Central Plains Urban Agglomeration, China: The bidirectional effects of urbanization and anthropogenic activities. ENVIRONMENTAL RESEARCH 2022; 214:113930. [PMID: 35868582 DOI: 10.1016/j.envres.2022.113930] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
To investigate the variations in environmental behavior (levels, distribution, sources, and soil toxicity) of polycyclic aromatic hydrocarbons (PAHs) under the impact of anthropogenic activities during the urbanization process, we collected soil samples from 195 sites in the Central Plains Urban Agglomeration (CPUA), North China, and analyzed 16 U.S. Environmental Protection Agency (EPA) PAH priority pollutants. We divided the sampling sites into three groups (urban area, industrial area, and farmland) and collected soil samples (0-20 cm surface layer). ∑16PAHs concentrations in the soils of the urban area, industrial area, and farmland ranged from 24.2 to 4400 ng/g, 12.3-8780 ng/g, and 20.9-852 ng/g (the average value of 349, 634, and 186 ng/g), respectively. The 4 to 5 ring PAHs were dominant compounds in three soil types, accounting for 65-80% of the ∑16PAHs. The results of the source analysis showed that the PAHs in the soils of CPUA were mainly from energy consumption. PAH levels in urban and industrial soils had a potential low cancer risk. The impact of urbanization on PAHs in the soil was bidirectional. On the one hand, the level of PAHs in the farmland soil might increase due to burning coal and agricultural machinery, which releases diesel or petrol fumes. On the other hand, in the urbanization process, the PAH content in urban soil and industrial soil showed a downward trend due to the implementation of environmental protection policies in China, which have reduced the atmospheric input of PAHs into the soil.
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Affiliation(s)
- Baozhong Zhang
- School of Environmental Engineering, Henan University of Technology, Lianhua Road 100#, Zhengzhou, 450001, Henan Province, People's Republic of China; Henan International Joint Laboratory of Environmental Pollution, Remediation and Grain Quality Security, Zhengzhou, 450001, Henan Province, People's Republic of China.
| | - Wenhao Wei
- School of Environmental Engineering, Henan University of Technology, Lianhua Road 100#, Zhengzhou, 450001, Henan Province, People's Republic of China
| | - Huina Zhu
- School of Environmental Engineering, Henan University of Technology, Lianhua Road 100#, Zhengzhou, 450001, Henan Province, People's Republic of China; Henan International Joint Laboratory of Environmental Pollution, Remediation and Grain Quality Security, Zhengzhou, 450001, Henan Province, People's Republic of China
| | - Xiaolong Liu
- School of Environmental Engineering, Henan University of Technology, Lianhua Road 100#, Zhengzhou, 450001, Henan Province, People's Republic of China
| | - Lina Lv
- School of Environmental Engineering, Henan University of Technology, Lianhua Road 100#, Zhengzhou, 450001, Henan Province, People's Republic of China
| | - Hanyu Chen
- School of Environmental Engineering, Henan University of Technology, Lianhua Road 100#, Zhengzhou, 450001, Henan Province, People's Republic of China
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Wei S, Xu Y, Ge X, Zhu X, Zhao J, Liu J, Sun H, Shen B. Kinetics on the Integration of Methanol Aromatization with Raffinate Oil over ZSM-5/ZSM-11 Zeolite. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shumei Wei
- International Joint Research Center for Green Energy Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
- Research Institute of Urumqi Petrochemical Company, Petrochina Company Limited, Urumqi 830019, People’s Republic of China
| | - Yarong Xu
- Research Institute of Urumqi Petrochemical Company, Petrochina Company Limited, Urumqi 830019, People’s Republic of China
| | - Xiang Ge
- International Joint Research Center for Green Energy Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Xuedong Zhu
- International Joint Research Center for Green Energy Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Jigang Zhao
- International Joint Research Center for Green Energy Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, People’s Republic of China
| | - Jichang Liu
- International Joint Research Center for Green Energy Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Hui Sun
- International Joint Research Center for Green Energy Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
| | - Benxian Shen
- International Joint Research Center for Green Energy Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, People’s Republic of China
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