The impact of zero-valent iron nanoparticles upon soil microbial communities is context dependent
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چکیده
منابع مشابه
The impact of zero-valent iron nanoparticles upon soil microbial communities is context dependent.
Nanosized zero-valent iron (nZVI) is an effective land remediation tool, but there remains little information regarding its impact upon and interactions with the soil microbial community. nZVI stabilised with sodium carboxymethyl cellulose was applied to soils of three contrasting textures and organic matter contents to determine impacts on soil microbial biomass, phenotypic (phospholipid fatty...
متن کاملCharacterization of zero-valent iron nanoparticles.
The iron nanoparticle technology has received considerable attention for its potential applications in groundwater treatment and site remediation. Recent studies have demonstrated the efficacy of zero-valent iron nanoparticles for the transformation of halogenated organic contaminants and heavy metals. In this work, we present a systematic characterization of the iron nanoparticles prepared wit...
متن کاملImpact of nanoscale zero valent iron on bacteria is growth phase dependent.
The toxic effect of nanoscale zero valent iron (nZVI) particles on bacteria from different growth phases was studied. Four bacterial strains namely Escherichia coli strains JM109 and BW25113, and Pseudomonas putida strains KT2440 and F1 were experimented. The growth curves of these strains were determined. Bacterial cells were harvested based on the predetermined time points, and exposed to nZV...
متن کاملToxicity of zero-valent iron nanoparticles to a trichloroethylene-degrading groundwater microbial community.
The microbiological impact of zero-valent iron used in the remediation of groundwater was investigated by exposing a trichloroethylene-degrading anaerobic microbial community to two types of iron nanoparticles. Changes in total bacterial and archaeal population numbers were analyzed using qPCR and were compared to results from a blank and negative control to assess for microbial toxicity. Addit...
متن کاملMicrobial reduction of perchlorate with zero-valent iron.
Microbial reduction of perchlorate in the presence of zero-valent iron was examined in both batch and column reactors to assess the potential of iron as the electron donor for biological perchlorate reduction process. Iron-supported mixed cultures completely removed 65 mg/L of perchlorate in batch reactors in 8 days. The removal rate was similar to that observed with hydrogen gas (5%) and aceta...
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ژورنال
عنوان ژورنال: Environmental Science and Pollution Research
سال: 2012
ISSN: 0944-1344,1614-7499
DOI: 10.1007/s11356-012-1196-2