Ferri-Magnetic Sorbents of Heavy Metals and Radionuclides on Base of Humates, Isolated from Oxidized Coals

2014 ◽  
Vol 1079-1080 ◽  
pp. 88-94
Author(s):  
Zh.K. Kairbekov ◽  
V.S. Yemelyanova ◽  
T.V. Shakiyeva ◽  
B.T. Dossumova ◽  
U.N. Dzhatkambayeva ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Magnetic Separation ◽  
Iron Oxides ◽  
Humic Acids ◽  
Active Components ◽  
Magnetic Composites ◽  
Magnetic Sorbents ◽  
Natural Objects ◽  
Optimal Mode ◽  
Heavy Metals Ions

The results of synthesis and researches of hybrid gumic-magnetic composites are presented in the article. The possibility of regulation of quantitative speciation of composites (containing of Fe) is established at the variation of proportions Fe (II), Fe (III)/HA and the way of reagents injection in a reaction mixture. The possibility of designing of sorbents on the basis of humic acids and chemically connected particles of iron oxides as magnetic-active components for fixation and extraction of heavy metals ions and radionuclides from natural objects by means of magnetic separation is shown. The adsorption degree stands at 95% in an optimal mode.

Parameters Affecting Dye Adsorption - Using Graphene Coated Sand (GSC)

2018 ◽  
Vol 4 (02) ◽  
Author(s):  
Seroor Atalah Khaleefa Alia ◽  
Dr. Mohammed Ibrahimb ◽  
Hussein Ali Hussein
Keyword(s):  
Heavy Metals ◽  
Contact Time ◽  
Organic Dyes ◽  
Low Cost ◽  
Dye Adsorption ◽  
Contaminated Water ◽  
Maximum Adsorption Capacity ◽  
Engineering Designs ◽  
Heavy Metals Ions ◽  
Coated Sand

Adsorption is most commonly applied process for the removal of pollutants such as dyes and heavy metals ions from wastewater. The present work talks about preparing graphenic material attached sand grains called graphene sand composite (GSC) by using ordinary sugar as a carbon source. Physical morphology and chemical composition of GSC was examined by using (FTIR, SEM, EDAX and XRD). Efficiency of GSC in the adsorption of organic dyes from water was investigated using reactive green dye with different parameters such as (ph, temperature, contact time and dose). Adsorption isotherm was also studied and the results showed that the maximum adsorption capacity of dye is 28.98 mg/g. This fast, low-cost process can be used to manufacture commercial filters to treat contaminated water using appropriate engineering designs.

Possibilities of microscopic detection of heavy metals ions in plant tissues

2010 ◽  
Vol 196 ◽  
pp. S294
Author(s):  
R. Kizek ◽  
O. Krystofova ◽  
P. Babula ◽  
M. Beklova ◽  
L. Havel ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Plant Tissues ◽  
Microscopic Detection ◽  
Heavy Metals Ions

Sequential removal of heavy metals ions and organic pollutants using an algal-bacterial consortium

Chemosphere ◽  
2006 ◽  
Vol 63 (6) ◽  
pp. 903-911 ◽  
Author(s):  
Raul Muñoz ◽  
Maria Teresa Alvarez ◽  
Adriana Muñoz ◽  
Enrique Terrazas ◽  
Benoit Guieysse ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Organic Pollutants ◽  
Bacterial Consortium ◽  
Removal Of Heavy Metals ◽  
Heavy Metals Ions

scholarly journals Evaluation of Magnetic Separation Efficiency on a Cassiterite-Bearing Skarn Ore by Means of Integrative SEM-Based Image and XRF–XRD Data Analysis

Minerals ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 390 ◽  
Author(s):  
Markus Buchmann ◽  
Edgar Schach ◽  
Raimon Tolosana-Delgado ◽  
Thomas Leißner ◽  
Jennifer Astoveza ◽  
...  
Keyword(s):  
Magnetic Separation ◽  
Iron Oxides ◽  
Separation Efficiency ◽  
Analysis Data ◽  
Gangue Mineral ◽  
Data Partition ◽  
Local Regression ◽  
Separation Processes ◽  
Magnetic Separator

Image analysis data obtained from scanning electron microscopy provided data for a detailed evaluation of the separation efficiency for various processes involving the beneficiation of particulate materials. A dry magnetic separation by a drum type magnetic separator served as a case study to visualize effects of processing of a skarn ore with a high content of cassiterite as ore mineral (~4 wt%). For this material, iron oxides and silicates are the main gangue mineral groups. Based on the obtained data, partition curves were generated with the help of local regression. From the partition curves, the separation efficiency was evaluated and the relevant particle properties deduced. A detailed analysis of the bias of the quantitative mineralogical data is presented. This bias was monitored and further analyzed in detail. Thorough analysis of feed and products of magnetic separation enabled identification of the most important factors that control losses of cassiterite to the magnetic product, namely the association with iron oxides and particle sizes below ~40 µm. The introduced methodology is a general approach applicable for the optimization of different separation processes and is not limited to the presented case study.

scholarly journals Synthesis of Fe3O4@PVBC–TMT nanoparticles for the efficient removal of heavy metals ions

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40546-40552 ◽  
Author(s):  
Zhiming Chen ◽  
Jiaojiao Song ◽  
Qingpeng Zhu ◽  
Zhiguo Li ◽  
Renchun Yang
Keyword(s):  
Heavy Metals ◽  
Core Shell ◽  
Magnetic Adsorbent ◽  
Efficient Removal ◽  
Removal Of Heavy Metals ◽  
Heavy Metals Ions

Core–shell Fe3O4@PVBC–TMT nanoparticles were fabricated and served as a valid magnetic adsorbent for the removal of heavy metals ions.

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