A green adsorbent derived from banana peel for highly effective removal of heavy metal ions from water

RSC Advances ◽  
2016 ◽  
Vol 6 (51) ◽  
pp. 45041-45048 ◽  
Author(s):  
Yingchun Li ◽  
Jiang Liu ◽  
Qunhui Yuan ◽  
Hui Tang ◽  
Feng Yu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Carbon Foam ◽  
Banana Peel ◽  
Effective Removal ◽  
Green Adsorbent ◽  
Highly Effective

A novel carbon foam (CF) was preparedviaphysically activating banana peel and applied for adsorbing various heavy metal ions including Cu2+, Pb2+, Cd2+and Cr6+in aqueous solution.

Effective Removal of Toxic Heavy Metal Ions from Aqueous Solution by CaCO3 Microparticles

2018 ◽  
Vol 229 (4) ◽  
Author(s):  
Rui Zhang ◽  
Joseph J. Richardson ◽  
Anthony F. Masters ◽  
Gyeongwon Yun ◽  
Kang Liang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Toxic Heavy Metal ◽  
Effective Removal

Comparative Bio-sorption of Cadmium and Nickel Ions from Aqueous Solution onto Fibers of Date Palm using Fluidized Bed Column

2019 ◽  
Vol 70 (5) ◽  
pp. 1507-1512
Author(s):  
Baker M. Abod ◽  
Ramy Mohamed Jebir Al-Alawy ◽  
Firas Hashim Kamar ◽  
Gheorghe Nechifor
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Fluidized Bed ◽  
Removal Efficiency ◽  
Heavy Metal Ions ◽  
Date Palm ◽  
Operating Conditions ◽  
Initial Concentration ◽  
Bed Height

The aim of this study is to use the dry fibers of date palm as low-cost biosorbent for the removal of Cd(II), and Ni(II) ions from aqueous solution by fluidized bed column. The effects of many operating conditions such as superficial velocity, static bed height, and initial concentration on the removal efficiency of metal ions were investigated. FTIR analyses clarified that hydroxyl, amine and carboxyl groups could be very effective for bio-sorption of these heavy metal ions. SEM images showed that dry fibers of date palm have a high porosity and that metal ions can be trapped and sorbed into pores. The results show that a bed height of 6 cm, velocity of 1.1Umf and initial concentration for each heavy metal ions of 50 mg/L are most feasible and give high removal efficiency. The fluidized bed reactor was modeled using ideal plug flow and this model was solved numerically by utilizing the MATLAB software for fitting the measured breakthrough results. The breakthrough curves for metal ions gave the order of bio-sorption capacity as follow: Cd(II)]Ni(II).

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