Results 181 to 190 of about 1,910,415 (212)

Chromium removal using resin supported nanoscale zero-valent iron

Journal of Environmental Management, 2013
Resin supported nanoscale zero-valent iron (R-nZVI) was synthesized by the borohydride reduction method. Batch experiments were conducted to evaluate the factors affecting Cr(VI) removal. It was found that nZVI loads, resin dose, pH value and initial concentration of Cr(VI) were all important factors.
Fenglian, Fu, Jun, Ma, Liping, Xie, Bing, Tang, Weijiang, Han, Suya, Lin   +5 more
openaire   +2 more sources

Reducing As availability in calcareous soils using nanoscale zero valent iron

Environmental Science and Pollution Research, 2017
Different methods, including the use of nanoscale zero-valent iron (NZVI), have been used to treat arsenic (As)-contaminated environments, with much less data on the use of NZVI in arsenic-calcareous-polluted soils. Accordingly, two different experiments were conducted to investigate the effects of NZVI on the removal of As from three different ...
Prisa, Azari, Abdol Amir, Bostani
openaire   +2 more sources

Dechlorination of short chain chlorinated paraffins by nanoscale zero-valent iron

Journal of Hazardous Materials, 2012
In this study, nanoscale zero-valent iron (NZVI) particles were synthesized and used for the reductive dehalogenation of short chain chlorinated paraffins (SCCPs) in the laboratory. The results show that the dechlorination rate of chlorinated n-decane (CP(10)) by NZVI increased with decreased solution pH.
Zhi-Yong, Zhang, Mang, Lu, Zhong-Zhi, Zhang, Meng, Xiao, Min, Zhang   +4 more
openaire   +2 more sources

Microwave-induced nanoscale zero-valent iron degradation of perchloroethylene and pentachlorophenol

Journal of the Air & Waste Management Association, 2012
Microwave (MW) is applied to enhance perchloroethylene (PCE) or pentachlorophenol (PCP) removal using zero-valent iron (ZVI; Fe(0)) as the dielectric medium. ZVI has a much higher dielectric loss factor (39.5) than other media; it is capable of absorbing MW radiation rapidly to speed up the release of electrons, leading to rises of the ZVI particle ...
Chien-Li, Lee, Chitsan, Lin, Chih-Ju G, Jou   +2 more
openaire   +2 more sources

Corrosion behaviors and kinetics of nanoscale zero-valent iron in water: A review

Journal of Environmental Sciences
Knowledge on corrosion behaviors and kinetics of nanoscale zero-valent iron (nZVI) in aquatic environment is particularly significant for understanding the reactivity, longevity and stability of nZVI, as well as providing theoretical guidance for developing a cost-effective nZVI-based technology and designing large-scale applications.
Chenliu Tang, Xingyu Wang, Yufei Zhang, Nuo Liu, Xiang Hu   +4 more
openaire   +2 more sources

Removal of Arsenic(III) from Groundwater by Nanoscale Zero-Valent Iron

Environmental Science & Technology, 2005
Nanoscale zero-valent iron (NZVI) was synthesized and tested for the removal of As(III), which is a highly toxic, mobile, and predominant arsenic species in anoxic groundwater. We used SEM-EDX, AFM, and XRD to characterize particle size, surface morphology, and corrosion layers formed on pristine NZVI and As(III)-treated NZVI.
Kanel, S.R., Manning, B., Charlet, Laurent, Choi, H.   +3 more
openaire   +4 more sources

Reduction of Cr(VI) by Urea-Dispersed Nanoscale Zero-Valent Iron

Journal of Nanoscience and Nanotechnology, 2015
Urea was used to disperse nanoscale zero-valent iron (NZVI) for reduction of Cr(VI) to Cr(III) in aqueous solution. Scanning electron microscope and fourier transform-infrared spectra investigations demonstrated that urea could effectively increase the dispersion of NZVI resulting in more effective reduction sites (ERS) for Cr(VI) ions. Batch reduction
Jing, Zhang, Guilong, Zhang, Kang, Zheng, Dongqing, Cai, Zhengyan, Wu   +4 more
openaire   +2 more sources

Deactivation of nanoscale zero-valent iron by humic acid and by retention in water

Environmental Technology, 2013
The effects of the deactivation of nanoscale zero-valent iron (NZVI), induced by humic acid (HA) and by the retention of NZVI in water, on nitrate reduction were investigated using a kinetic study. Both the nitrate removal and generation of ammonia were significantly inhibited as the HA adsorption amount and retention time were increased.
Kim, DG Kim, Do-Gun, Hwang, YH Hwang, Yu-Hoon, Shin, HS Shin, Hang-Sik, Ko, SO Ko, Seok-Oh   +3 more
openaire   +3 more sources

Nanoscale zero-valent iron reverses resistance of Pseudomonas aeruginosa to chloramphenicol

Journal of Hazardous Materials
Zero-valent iron (ZVI) has been extensively studied for its capacity to remove various contaminants in the environments. However, whether ZVI affects bacterial resistance to antibiotics has not been fully explored. Herein, it was unexpected that, compared with microscale ZVI (mZVI), nanoscale ZVI (nZVI) facilitated the susceptibility of Pseudomonas ...
Yufan, Wang, Kun, Lu, Zhiruo, Zhou, Yujie, Wang, Jiawei, Shen, Dan, Huang, Yongchang, Xu, Meizhen, Wang   +7 more
openaire   +2 more sources

Nanoscale zero-valent iron for aqueous lead removal

Advanced Materials Proceedings, 2021
Yana Bagbi ., Ankur Sarswat ., Sachchidanand Tiwari ., Dinesh Mohan ., Arvind Pandey ., Pratima R. Solanki .   +5 more
openaire   +1 more source