In recent years, the nanoscale zero-valent iron (NZVI) particles have been used successfully for the degradation of hydrocarboncompounds and remediation of other pollutants. Nevertheless, as far as we know, there is no specific study on the improvement of thegeotechnical properties of contaminated soils with hydrocarbon compounds by NZVI. This study used NZVI particles to remove gasoil in a cla...

Abstract The purpose of the study was to evaluate possibility removing heavy metal cations from single-metal spiked soil samples, which were pretreated with nanoscale zero-valent iron (nZVI) particles. Sandy artificially contaminated copper (Cu), cadmium (Cd), nickel (Ni), and lead (Pb). Contaminated samples amended different doses nZVI (0.35, 0.70 1.05 %). A sequential extraction method used d...

• NZVI particle size was smaller in NZVI-Mt composite than pure NZVI. had higher Se VI and As V adsorption capacity Mt. pH influenced removal but not by single competing systems. showed partition coefficients for According to coefficients, selectivity of was: >>> . Nanoscale zero-valent iron (NZVI) supported onto montmorillonite (NZVI-Mt) were synthetized used this study remove from water mono-...

globally, increasing nitrate concentrations have become a significant environmental problem and a potential risk to public health. the world health organization (who) has set a limit of (10 (mg.l -1 )) no 3 - for human consumption and (100 mg.l -1 )) no 3 - for animals. water above these limits requires denitrification. nitrates causes cancer, blue-bay syndrome, hypertension and thyroid hypertr...

In this study, bamboo impregnated with nanoscale zero-valent iron (nZVI) and nanoscale manganese (nMn) were prepared by the aqueous phase borohydride reduction method and characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and PIXE analysis. The synthesized nMn-bamboo and nZVI-bamboo composites were subsequently applied to the sorption of methy...

The co-contamination of soils with heavy metals and organic contaminants is a problem that requires different innovative approach to remediate these kinds sites. nature two contaminant groups makes the complicated. Recently, zero-valent iron nanoparticles (nZVI) application has been integrated bioremediation be used for remediation halogenated organics. However, use this process co-contaminated...

Zero-valent iron nanoparticle (nZVI) technology has been found to be promising and effective for the remediation of soils or groundwater. However, while nanoparticles are traveling through porous media, they can rapidly aggregate, causing their settling deposition. When nZVI injected in groundwater flow, behavior (mobility, dispersion, distribution) is unknown groundwater, use enormous quantiti...

Abstract Nanoscale zero-valent iron (nZVI) and sulfides have been confirmed to be effective in arsenic sequestration from aqueous solution. In this study, attapulgite supported sulfide-modified nanoscale (S-nZVI@ATP) are synthesized realize the superposition effect of enhanced sequestration. The results indicated that nZVI clusters were well disaggregated BET specific surface area increased 19....

This research reported a new method of removal of Pb+2from water by using a nano zero valent iron (nZVI) assisted ultrasonic wave. At first, nZVI was synthesized by an ultrasound assisted method. Particles morphology and surface composition were characterized by FESEM, XRD, and EDX. The XRD patterns showed that the crystallinity of the nZVI prepared using ultrasonic conditions was hi...

A new method for the synthesis of nano zero-valent iron (nZVI) was developed in the present study. Ultrasonic waves, as a novel method, were used to synthesize the nanoparticles. The morphology and surface compositions of the particles were characterized by using FESEM, XRD, BET, and particle size analyzer. The synthesized nanoparticles were then utilized as a Fenton-like catalyst to degrade of...