Performance evaluation of a novel rGO-Fe0/Fe3O4-PEI nanocomposite for lead and cadmium removal from aqueous solutions

2020 ◽  
Vol 320 ◽  
pp. 114422 ◽  
Author(s):  
Susan Bagheri ◽  
Ali Esrafili ◽  
Majid Kermani ◽  
Jamal Mehralipour ◽  
Mitra Gholami
Keyword(s):  
Performance Evaluation ◽  
Aqueous Solutions ◽  
Cadmium Removal ◽  
Lead And Cadmium

scholarly journals Kinetic, isotherm and thermodynamic studies with linear and non-linear fitting for cadmium(II) removal by black carbon of pine cone

2017 ◽  
Vol 76 (8) ◽  
pp. 2242-2253 ◽  
Author(s):  
Z. Yavari ◽  
M. Noroozifar
Keyword(s):  
Aqueous Solutions ◽  
Black Carbon ◽  
Adsorption Process ◽  
Order Kinetic ◽  
Cadmium Removal ◽  
Thermodynamic Studies ◽  
Linear Fitting ◽  
Pine Cone ◽  
Fitting Method ◽  
Non Linear

In this study, black carbon from pine cone (BCPC) and acidic-modified BCPC (MBCPC) powder as a popular agricultural waste in the southeast of Iran were used for cadmium removal from aqueous solutions. The effect of various factors, such as surface chemistry and dosage of adsorbent, contact time, size of particles, initial concentration of cadmium, temperature, and pH of aqueous solutions, was investigated. The results show cadmium removal with usage of the mentioned adsorbents increased after acidic modification. It was noteworthy in this work that the removal percentage of pollutant was above 90% for suggested biosorbents. The obtained experimental data for optimum conditions were selected to model the adsorption behavior of the materials with usage of six isotherm equations via non-linear fitting method and the residual root mean square error estimation for each model. The adsorption of cadmium preferably fitted Khan and Langmuir–Freundlich isotherms for BCPC and MBCPC adsorbents, respectively. The kinetic studies via linear fitting method proved the second-order kinetic was the applicable model for the adsorption process. Thermodynamic studies show the adsorption process of cadmium onto BCPC and MBCPC was spontaneous and endothermic.

Cadmium removal from dilute aqueous solutions under galvanostatic mode in a flow-through cell

2015 ◽  
Vol 57 (48-49) ◽  
pp. 22809-22817 ◽  
Author(s):  
Ma. de Lourdes Llovera-Hernández ◽  
Alberto Álvarez-Gallegos ◽  
J.A. Hernández ◽  
Susana Silva-Martínez
Keyword(s):  
Aqueous Solutions ◽  
Cadmium Removal ◽  
Galvanostatic Mode ◽  
Dilute Aqueous Solutions ◽  
Flow Through

Removal of lead and cadmium from aqueous solutions by using 4-amino-3-hydroxynaphthalene sulfonic acid-doped polypyrrole films

2018 ◽  
Vol 25 (9) ◽  
pp. 8581-8591 ◽  
Author(s):  
Mohamed Lamine Sall ◽  
Abdou Karim Diagne Diaw ◽  
Diariatou Gningue-Sall ◽  
Alexandre Chevillot-Biraud ◽  
Nihal Oturan ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Sulfonic Acid ◽  
Polypyrrole Films ◽  
Lead And Cadmium

Removal of Lead and Cadmium from Aqueous Solutions by Banana Peel Biochar

2019 ◽  
Vol 106 (1-3) ◽  
Author(s):  
Khan Agha Shenwari ◽  
S. Priyatharshini ◽  
P. Dhevagi ◽  
T. Chitdeshwari ◽  
S. Avudainayagam
Keyword(s):  
Aqueous Solutions ◽  
Banana Peel ◽  
Lead And Cadmium

Interlaboratory Comparison of Lead and Cadmium in Blood, Urine, and Aqueous Solutions

1978 ◽  
Vol 24 (10) ◽  
pp. 1797-1800 ◽  
Author(s):  
Poul-Erik Paulev ◽  
Poul Solgaard ◽  
Jens Christian Tjell
Keyword(s):  
Quality Control ◽  
Aqueous Solutions ◽  
Interlaboratory Comparison ◽  
Control Program ◽  
Quality Control Program ◽  
Control Programs ◽  
Lead And Cadmium ◽  
Biological Liquids

Abstract Analysis for lead and cadmium in biological liquids (blood and urine) is difficult. Results of such analyses from five laboratories are compared for samples with known additions of lead and cadmium. The data, evaluated in terms of inter- and intralaboratory reproducibility and accuracy, suggest that laboratories should voluntarily participate in quality control programs. Users of routine laboratories are advised to use their own quality control program.

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