Nanoscale zero-valent iron functionalized Posidonia oceanica marine biomass for heavy metal removal from water

2017 ◽  
Vol 24 (36) ◽  
pp. 27879-27896 ◽  
Author(s):  
Saber Boubakri ◽  
Mohamed Amine Djebbi ◽  
Zaineb Bouaziz ◽  
Philippe Namour ◽  
Abdesslem Ben Haj Amara ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Posidonia Oceanica ◽  
Zero Valent Iron ◽  
Marine Biomass ◽  
Nanoscale Zero Valent Iron

Kaolin-nano scale zero-valent iron composite (K-nZVI): synthesis, characterization and application for heavy metal removal

2017 ◽  
Vol 100 ◽  
pp. 168-177 ◽  
Author(s):  
L. Sivarama Krishna ◽  
K. Soontarapa ◽  
A. Yuzir ◽  
V. Ashok Kumar ◽  
W.Y. Wan Zuhairi
Keyword(s):  
Heavy Metal ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Zero Valent Iron ◽  
Nano Scale

scholarly journals HEAVY METAL REMOVAL FROM SYNTHETIC WASTE WATER BY USING ZERO VALENT IRON NANOPARTICLES

2019 ◽  
Vol 7 (2) ◽  
pp. 83
Author(s):  
Shobha Mantripragada ◽  
Lifeng Zhang ◽  
Oscar Medel Enriquez ◽  
Kierah Risdon-Langdon ◽  
Lei Zhang
Keyword(s):  
Waste Water ◽  
Heavy Metal ◽  
Iron Nanoparticles ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Zero Valent Iron ◽  
Zero Valent Iron Nanoparticles

Effect of humic acids on heavy metal removal by zero-valent iron in batch and continuous flow column systems

2005 ◽  
Vol 39 (15) ◽  
pp. 3531-3540 ◽  
Author(s):  
Jan Dries ◽  
Leen Bastiaens ◽  
Dirk Springael ◽  
Stefaan Kuypers ◽  
Spiros N. Agathos ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Humic Acids ◽  
Continuous Flow ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Zero Valent Iron

Heavy metal removal from wastewater using zero-valent iron nanoparticles

2008 ◽  
Vol 58 (10) ◽  
pp. 1947-1954 ◽  
Author(s):  
S. Y. Chen ◽  
W. H. Chen ◽  
C. J. Shih
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Removal Efficiency ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Zero Valent Iron ◽  
Affecting Factors ◽  
High Concentration ◽  
Initial Ph ◽  
Low Efficiency

Because of having a high reduction potential, the zero-valent iron (ZVI) is often applied for the remediation of wastewater or groundwater with heavy metals. The purpose of this study was aimed to investigate the reaction behavior of heavy metals with ZVI nanoparticles in the wastewater. The affecting factors, such as initial pH, dosage of nanoscale ZVI and initial concentration of heavy metal, on the removal efficiency of heavy metals by ZVI in the wastewater were examined by the batch experiments in this study. It was found that the removal of heavy metals was affected by initial pH. The rate and efficiency of metal removal increased with decreasing initial pH. Greater than 90% of the heavy metals were removed when the initial pH was controlled at 2. In addition, the rate and efficiency of metal removal increased as the dosage of nanoscale ZVI increased. The removal efficiency of heavy metal was higher than 80% when 2.0 g/L of ZVI was added in the wastewater. On the other hand, the slow rate and low efficiency of metal removal from the wastewater treated by nanoscale ZVI was found in the wastewater with high concentration of heavy metal.

scholarly journals Application of nanoscale zero-valent iron in hexavalent chromium-contaminated soil: A review

2020 ◽  
Vol 9 (1) ◽  
pp. 736-750
Author(s):  
Xilu Chen ◽  
Xiaomin Li ◽  
Dandan Xu ◽  
Weichun Yang ◽  
Shaoyuan Bai
Keyword(s):  
Heavy Metal ◽  
Hexavalent Chromium ◽  
Contaminated Soil ◽  
Zero Valent Iron ◽  
Toxic Heavy Metal ◽  
Factors Affecting ◽  
Metal Pollutants ◽  
Nanoscale Zero Valent Iron ◽  
Low Toxicity ◽  
Heavy Metal Pollutants

AbstractChromium (Cr) is a common toxic heavy metal that is widely used in all kinds of industries, causing a series of environmental problems. Nanoscale zero- valent iron (nZVI) is considered to be an ideal remediation material for contaminated soil, especially for heavy metal pollutants. As a material of low toxicity and good activity, nZVI has been widely applied in the in situ remediation of soil hexavalent chromium (Cr(vi)) with mobility and toxicity in recent years. In this paper, some current technologies for the preparation of nZVI are summarized and the remediation mechanism of Cr(vi)-contaminated soil is proposed. Five classified modified nZVI materials are introduced and their remediation processes in Cr(vi)-contaminated soil are summarized. Key factors affecting the remediation of Cr(vi)-contaminated soil by nZVI are studied. Interaction mechanisms between nZVI-based materials and Cr(vi) are explored. This study provides a comprehensive review of the nZVI materials for the remediation of Cr(vi)-contaminated soil, which is conducive to reducing soil pollution.

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