| Title | Nanoparticles within WWTP sludges have minimal impact on leachate quality and soil microbial community structure and function |
| Publication Type | Journal Article |
| Year of Publication | 2016 |
| Authors | Durenkamp M., Pawlett M., Ritz K., Harris J.A, Neal A.L, McGrath S.P |
| Journal | Environmental Pollution |
| Volume | 211 |
| Pagination | 399-405 |
| Date Published | Apr |
| Type of Article | Article |
| ISBN Number | 0269-7491 |
| Accession Number | WOS:000376696800045 |
| Keywords | ENGINEERED, FATE, Greenhouse gases, GREENHOUSE-GAS EMISSIONS, NANOMATERIALS, nanoparticles, NANOSILVER, nitrification, plfa, SEWAGE-SLUDGE, SILVER, Silver nanoparticles, toxicity, VALENT IRON NANOPARTICLES, WASTE-WATER, Zinc oxide, ZNO NANOPARTICLES |
| Abstract | One of the main pathways by which engineered nanoparticles (ENPs) enter the environment is through land application of waste water treatment plant (WWTP) sewage sludges. WWTP sludges, enriched with Ag and ZnO ENPs or their corresponding soluble metal salts during anaerobic digestion and subsequently mixed with soil (targeting a final concentration of 1400 and 140 mg/kg for Zn and Ag, respectively), were subjected to 6 months of ageing and leaching in lysimeter columns outdoors. Amounts of Zn and Ag leached were very low, accounting for |
| Alternate Journal | Environ. Pollut. |
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Nanoparticles within WWTP sludges have minimal impact on leachate quality and soil microbial community structure and function
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[biblio_abst_e] => One of the main pathways by which engineered nanoparticles (ENPs) enter the environment is through land application of waste water treatment plant (WWTP) sewage sludges. WWTP sludges, enriched with Ag and ZnO ENPs or their corresponding soluble metal salts during anaerobic digestion and subsequently mixed with soil (targeting a final concentration of 1400 and 140 mg/kg for Zn and Ag, respectively), were subjected to 6 months of ageing and leaching in lysimeter columns outdoors. Amounts of Zn and Ag leached were very low, accounting for <0.3% and <1.4% of the total Zn and Ag, respectively. No differences in total leaching rates were observed between treatments of Zn or Ag originally input to WWTP as ENP or salt forms. Phospholipid fatty acid profiling indicated a reduction in the fungal component of the soil microbial community upon metal exposure. However, overall, the leachate composition and response of the soil microbial community following addition of sewage sludge enriched either with ENPs or metal salts was very similar. (C) 2016 The Authors. Published by Elsevier Ltd.
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Durenkamp, Mark Pawlett, Mark Ritz, Karl Harris, Jim A. Neal, Andrew L. McGrath, Steve P.
Harris, Jim/B-2816-2011
Harris, Jim/0000-0001-9266-4979
Transatlantic Initiative for Nanotechnology and the Environment (TINE) grant of the UK Natural Environment Research Council [NE/H013679/1]; UK Biotechnology and Biological Sciences Research Council [BBS/E/C/00005094]
The authors would like to thank Neil Donovan at Rothamsted Research North Wyke, UK, for gas chromatography analyses. This work was supported by the Transatlantic Initiative for Nanotechnology and the Environment (TINE) grant of the UK Natural Environment Research Council (NE/H013679/1) and by the UK Biotechnology and Biological Sciences Research Council (BBS/E/C/00005094).
17
ELSEVIER SCI LTD
OXFORD
ENVIRON POLLUT
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