The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Microplastics in Sewage Sludge: Effects of Treatment
Open accessAbstract
Waste water treatment plants (WWTPs) are receptors for the cumulative loading of microplastics (MPs) derived from industry, landfill, domestic wastewater and stormwater. The partitioning of MPs through the settlement processes of wastewater treatment results in the majority becoming entrained in the sewage sludge. This study characterized MPs in sludge samples from seven WWTPs in Ireland which use anaerobic digestion (AD), thermal drying (TD), or lime stabilization (LS) treatment processes. Abundances ranged from 4196 to 15 385 particles kg –1 (dry weight). Results of a general linear mixed model (GLMM) showed significantly higher abundances of MPs in smaller size classes in the LS samples, suggesting that the treatment process of LS shears MP particles. In contrast, lower abundances of MPs found in the AD samples suggests that this process may reduce MP abundances. Surface morphologies examined using scanning electron microscopy (SEM) showed characteristics of melting and blistering of TD MPs and shredding and flaking of LS MPs. This study highlights the potential for sewage sludge treatment processes to affect the risk of MP pollution prior to land spreading and may have implications for legislation governing the application of biosolids to agricultural land.
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Cites
Microplastics as contaminants in the marine environment: A review
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Transport and release of chemicals from plastics to the environment and to wildlife
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Microplastic pollution in the surface waters of the Laurentian Great Lakes
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Cited by
Plastics in soil: Analytical methods and possible sources
Bläsing, M., & Amelung, W. (2018) · Science of The Total Environment · doi:10.1016/j.scitotenv.2017.08.086 · Cited by 1,655
Hurley, R. R., Lusher, A. L., Olsen, M., & Nizzetto, L. (2018) · Environmental Science & Technology · doi:10.1021/acs.est.8b01517 · Cited by 992
Bioavailability and effects of microplastics on marine zooplankton: A review
Botterell, Z. L. R., Beaumont, N., Dorrington, T., Steinke, M., Thompson, R. C., & Lindeque, P. K. (2019) · Environmental Pollution · doi:10.1016/j.envpol.2018.10.065 · Cited by 966
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Hernandez, E., Nowack, B., & Mitrano, D. M. (2017) · Environmental Science & Technology · doi:10.1021/acs.est.7b01750 · Cited by 779
Metadata
- Authors
- Mahon, A. M., O’Connell, B., Healy, M. G., O’Connor, I., Officer, R., Nash, R., & Morrison, L.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-12-23
- Volume
- 51
- Issue
- 2
- Pages
- 810-818
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2557355211
- Cited by
- 1,063
- References
- 10
- FWCI
- 17.98
- Type
- journal article
- Language
- en
- Open access
- green
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- Mahon, A. M., O’Connell, B., Healy, M. G., O’Connor, I., Officer, R., Nash, R., & Morrison, L. (2017). Microplastics in Sewage Sludge: Effects of Treatment. Environmental Science & Technology. https://doi.org/10.1021/acs.est.6b04048
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