Microplastics in two different constructed wetlands systems for wastewater treatment : removal and fate
- Author
- Qintong Wang (UGent) , Yanyao Li (UGent) , Xuetong Yang, Stijn Van Hulle (UGent) and Diederik Rousseau (UGent)
- Organization
- Abstract
- Wastewater is one of the main sources of microplastics (MPs) in the environment, but so far, most research has focused on large-scale centralized wastewater treatment plants (WWTPs). This study investigated the removal and fate of MPs in two small-scale WWTPs (S1 and S2) using different constructed wetlands (CWs). Samples from the wastewater, substrates and macroinvertebrates of CWs were collected and analyzed to investigate the fate of MPs. Results showed that the total removal efficiency for MPs was 97% in both S1 and S2 WWTPs, resulting in effluent concentrations approximately 0.5 particles/L. The CW units of S1 and S2 contributed 92% and 89%, respectively, indicating that both VF CWs and HSSF CWs have efficient MPs removal capability. Moreover, fibers were the most abundant shape detected in wastewater (74% in S1 and 83% in S2), as well as in substrates and macroinvertebrates. In the S2 CW, fibers had a lower removal efficiency (89%) compared with other shapes, while in S1 CWs, all shapes had 93% removal efficiency. The concentration of MPs in surface substrates (0.57 - 0.71 particles/g dry weight) of CWs did not show any differences between different CWs (p>0.05). The concentration of MPs inside macroinvertebrates showed a significant decline between S1 CW1 (154.9 particles/g dw on average) and S1 CW2 (94.4 particles/g dw) (p<0.05), which were consistent with the concentration of MPs in the influent of each CW. This study provides insights into MPs removal by different kinds of CWs and is beneficial for management of MPs with CWs.
- Keywords
- Treatment wetland, Macroinvertebrates, Wastewater, Sediment, Microplastics, ACTIVATED-SLUDGE PROCESS, TREATMENT PLANTS, IDENTIFICATION, PERFORMANCE, SEDIMENTS, POLLUTION, PLASTICS, ACCUMULATION, PARTICLES, LEACHATE
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01J9R8JG3J3FCQ0SWFHVGNS7V4
- MLA
- Wang, Qintong, et al. “Microplastics in Two Different Constructed Wetlands Systems for Wastewater Treatment : Removal and Fate.” JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, vol. 12, no. 6, 2024, doi:10.1016/j.jece.2024.114341.
- APA
- Wang, Q., Li, Y., Yang, X., Van Hulle, S., & Rousseau, D. (2024). Microplastics in two different constructed wetlands systems for wastewater treatment : removal and fate. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 12(6). https://doi.org/10.1016/j.jece.2024.114341
- Chicago author-date
- Wang, Qintong, Yanyao Li, Xuetong Yang, Stijn Van Hulle, and Diederik Rousseau. 2024. “Microplastics in Two Different Constructed Wetlands Systems for Wastewater Treatment : Removal and Fate.” JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 (6). https://doi.org/10.1016/j.jece.2024.114341.
- Chicago author-date (all authors)
- Wang, Qintong, Yanyao Li, Xuetong Yang, Stijn Van Hulle, and Diederik Rousseau. 2024. “Microplastics in Two Different Constructed Wetlands Systems for Wastewater Treatment : Removal and Fate.” JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 12 (6). doi:10.1016/j.jece.2024.114341.
- Vancouver
- 1.Wang Q, Li Y, Yang X, Van Hulle S, Rousseau D. Microplastics in two different constructed wetlands systems for wastewater treatment : removal and fate. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING. 2024;12(6).
- IEEE
- [1]Q. Wang, Y. Li, X. Yang, S. Van Hulle, and D. Rousseau, “Microplastics in two different constructed wetlands systems for wastewater treatment : removal and fate,” JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, vol. 12, no. 6, 2024.
@article{01J9R8JG3J3FCQ0SWFHVGNS7V4, abstract = {{Wastewater is one of the main sources of microplastics (MPs) in the environment, but so far, most research has focused on large-scale centralized wastewater treatment plants (WWTPs). This study investigated the removal and fate of MPs in two small-scale WWTPs (S1 and S2) using different constructed wetlands (CWs). Samples from the wastewater, substrates and macroinvertebrates of CWs were collected and analyzed to investigate the fate of MPs. Results showed that the total removal efficiency for MPs was 97% in both S1 and S2 WWTPs, resulting in effluent concentrations approximately 0.5 particles/L. The CW units of S1 and S2 contributed 92% and 89%, respectively, indicating that both VF CWs and HSSF CWs have efficient MPs removal capability. Moreover, fibers were the most abundant shape detected in wastewater (74% in S1 and 83% in S2), as well as in substrates and macroinvertebrates. In the S2 CW, fibers had a lower removal efficiency (89%) compared with other shapes, while in S1 CWs, all shapes had 93% removal efficiency. The concentration of MPs in surface substrates (0.57 - 0.71 particles/g dry weight) of CWs did not show any differences between different CWs (p>0.05). The concentration of MPs inside macroinvertebrates showed a significant decline between S1 CW1 (154.9 particles/g dw on average) and S1 CW2 (94.4 particles/g dw) (p<0.05), which were consistent with the concentration of MPs in the influent of each CW. This study provides insights into MPs removal by different kinds of CWs and is beneficial for management of MPs with CWs.}}, articleno = {{114341}}, author = {{Wang, Qintong and Li, Yanyao and Yang, Xuetong and Van Hulle, Stijn and Rousseau, Diederik}}, issn = {{2213-2929}}, journal = {{JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING}}, keywords = {{Treatment wetland,Macroinvertebrates,Wastewater,Sediment,Microplastics,ACTIVATED-SLUDGE PROCESS,TREATMENT PLANTS,IDENTIFICATION,PERFORMANCE,SEDIMENTS,POLLUTION,PLASTICS,ACCUMULATION,PARTICLES,LEACHATE}}, language = {{eng}}, number = {{6}}, pages = {{9}}, title = {{Microplastics in two different constructed wetlands systems for wastewater treatment : removal and fate}}, url = {{http://doi.org/10.1016/j.jece.2024.114341}}, volume = {{12}}, year = {{2024}}, }
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