Results 181 to 190 of about 9,104 (230)

Interactions between natural organic matter fractions and nanoscale zero-valent iron

Science of The Total Environment, 2021
The presence of natural organic matter (NOM) in groundwater could play an important role in the removal of contaminants by nanoscale zero-valent iron (NZVI). NOM has a heterogeneous structure and can be divided into 6 fractions based on polarity and charges: hydrophobic acid (HPOA), hydrophobic base (HPOB), hydrophobic neutral (HPON), hydrophilic acid (
Thunyalux, Ratpukdi, Katika, Intarasuwan, Panitan, Jutaporn, Eakalak, Khan   +3 more
openaire   +2 more sources

Nanoscale zero-valent iron flakes for groundwater treatment

Environmental Earth Sciences, 2014
Even today the remediation of organic contaminant source zones poses significant technical and economic challenges. Nanoscale zero-valent iron (NZVI) injections have proved to be a promising approach especially for source zone treatment. We present the development and the characterization of a new kind of NZVI with several advantages on the basis of ...
R. Köber, H. Hollert, G. Hornbruch, M. Jekel, A. Kamptner, N. Klaas, H. Maes, K.-M. Mangold, E. Martac, A. Matheis, H. Paar, A. Schäffer, H. Schell, A. Schiwy, K. R. Schmidt, T. J. Strutz, S. Thümmler, A. Tiehm, J. Braun   +18 more
openaire   +1 more source

Aqueous phosphate removal using nanoscale zero-valent iron

Journal of Nanoparticle Research, 2012
Nanoscale zero-valent iron (NZVI) particles have been used for the remediation of a wide variety of contaminants. NZVI particles have high reactivity because of high reactive surface area. In this study, NZVI slurry was successfully used for phosphate removal and recovery.
Talal Almeelbi, Achintya Bezbaruah
openaire   +1 more source

Review of soluble uranium removal by nanoscale zero valent iron

Journal of Environmental Radioactivity, 2016
Uranium (U) has been released to surface soil and groundwater through military and industrial activities. Soluble forms of U transferred to drinking water sources and food supplements can potentially threaten humans and the biosphere due to its chemical toxicity and radioactivity.
C, Jing, Y L, Li, S, Landsberger
openaire   +2 more sources

Remediation of contaminated soils by enhanced nanoscale zero valent iron

Environmental Research, 2018
The use of nanoscale zero valent iron (nZVI) for in situ remediation of soil contamination caused by heavy metals and organic pollutants has drawn great concern, primarily owing to its potential for excellent activity, low cost and low toxicity. This reviews considers recent advances in our understanding of the role of nZVI and enhanced nZVI strategy ...
Danni, Jiang, Guangming, Zeng, Danlian, Huang, Ming, Chen, Chen, Zhang, Chao, Huang, Jia, Wan   +6 more
openaire   +2 more sources

Stabilization of biosolids with nanoscale zero-valent iron (nZVI)

Journal of Nanoparticle Research, 2007
Biosolids are the treated organic residuals, also known as sludge, that are generated from domestic wastewater treatment plants. According to the USEPA, over 7 millions tons (dry weight) of biosolids are generated every year in the US by more than the 16,000 wastewater treatment plants and a large portion of these biosolids is disposed on land ...
Xiao-qin Li, Derick G. Brown, Wei-xian Zhang   +2 more
openaire   +1 more source

Study on Cytotoxicity of Nanoscale Zero Valent Iron Particles

Materials Science Forum, 2011
Although small nZNI nanoparticles are useful in various applications, the biosafety of this material needs to be evaluated. In this study, Escherichia coli cells were exposed to 0, 112, 560, 1120 mg/L of nano-Fe0particles, respectively. Experiments were carried out to examine the activities of lactate dehydrogenase (LDH), cellular superoxide dismutase (
Xue Wang, Mei Ying Dong, Ling Liu, Ying Liu, Zhao Hui Jin, Tie Long Li   +5 more
openaire   +1 more source

An insight into the fate of Cu2+ and zero-valent iron during removal of Cu2+ by nanoscale zero-valent iron

Water Emerging Contaminants & Nanoplastics, 2023
Aim: The transformation of zero-valent iron (Fe0) and Cu2+ during Cu2+ removal by nanoscale zero-valent iron (nZVI) has not been properly investigated using modern analytical techniques, despite its importance in environmental toxicology and surface chemistry associated with wastewater treatment/groundwater remediation.
Emmanuella Anang, Liu Hong, Xianyuan Fan
openaire   +1 more source

Degradation of chlorinated phenols by nanoscale zero-valent iron

Frontiers of Environmental Science & Engineering in China, 2008
Chlorophenols (CPs), as important contaminants in groundwater, are toxic and difficult to biodegrade. Recently nanoscale zero-valent iron received a great deal of attention because of its excellent performance in treating recalcitrant compounds.
Rong Cheng, Jianlong Wang, Weixian Zhang
openaire   +1 more source

Recovery of indium ions by nanoscale zero-valent iron

Journal of Nanoparticle Research, 2017
Indium and its compounds have plenty of industrial applications and high demand. Therefore, indium recovery from various industrial effluents is necessary. It was sequestered by nanoscale zero-valent iron (nZVI) whose size mainly ranged from 50 to 70 nm. Adsorption kinetics and isotherm, influence of pH, and ionic strength were thoroughly investigated.
Wen Chen, Yiming Su, Zhipan Wen, Yalei Zhang, Xuefei Zhou, Chaomeng Dai   +5 more
openaire   +1 more source