The Impact of Silver Nanoparticles on the Composting of Municipal Solid Waste
Citations Over TimeTop 10% of 2013 papers
Abstract
The study evaluates the impact of polyvinylpyrrolidone (PVP) coated silver nanoparticles (PVP-AgNPs) on the composting of municipal solid waste. The results suggest that there was no statistically significant difference in the leachate, gas, and solid quality parameters and overall composting performance between the treatments containing the AgNPs, Ag(+), and negative control. Nonetheless, taxonomical analyses of 25 Illumina 16S rDNA barcoded libraries containing 2 393 504 sequences indicated that the bacterial communities in composted samples were highly diverse and primarily dominated by Clostridia (48.5%), Bacilli (27.9%), and beta-Proteobacteria (13.4%). Bacterial diversity studies showed that the overall bacterial community structure in the composters changed in response to the Ag-based treatments. However, the data suggest that functional performance was not significantly affected due to potential bacterial functional redundancy within the compost samples. The data also indicate that while the surface transformation of AgNPs to AgCl and Ag2S can reduce the toxicity, complexation with organic matter may also play a major role. The results of this study further suggest that at relatively low concentrations, the organically rich waste management systems' functionality may not be influenced by the presence of AgNPs.
Related Papers
- → Sporulation in solventogenic and acetogenic clostridia(2021)60 cited
- → A new selective medium for the culture of clostridia from human faeces(1982)20 cited
- → Effect of Dietary Clostridia upon Growth-Promoting Responses of Penicillin.(1954)17 cited
- → Iron complexation as a tool to direct mixed clostridia—lactobacilli fermentations(1990)11 cited
- → Effect of Antibacterial Substances on Fecal Clostridia Populations.(1952)9 cited