Adsorption of Iron and Lead Ions from an Aqueous Solution by Plasma-Modified Activated Carbon

2012 ◽  
Vol 51 (48) ◽  
pp. 15618-15625 ◽  
Author(s):  
ChangMing Du ◽  
Hui Liu ◽  
MuDan Xiao ◽  
Dong Gao ◽  
DongWei Huang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Lead Ions ◽  
Modified Activated Carbon

Removal of metallic trace elements (Pb2+, Cd2+, Cu2+, and Ni2+) from aqueous solution by adsorption onto cerium oxide modified activated carbon

2021 ◽  
Vol 193 (8) ◽  
Author(s):  
Daouda Kouotou ◽  
Mohammed Ghalit ◽  
Julius Nsami Ndi ◽  
Luisa M. Pastrana Martinez ◽  
Meriam El Ouahabi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Trace Elements ◽  
Activated Carbon ◽  
Cerium Oxide ◽  
Modified Activated Carbon ◽  
Metallic Trace Elements

Removal of Cr(VI) from aqueous solution using Fe-modified activated carbon prepared from luffa sponge: kinetic, thermodynamic, and isotherm studies

2016 ◽  
Vol 57 (60) ◽  
pp. 29467-29478 ◽  
Author(s):  
Yan-na Wang ◽  
Qun Liu ◽  
Li Shu ◽  
Ming-sheng Miao ◽  
Yu-zhen Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Modified Activated Carbon ◽  
Luffa Sponge

Study on Treatment of Cr (VI)-Containing Wastewater with Nitric Acid Modified Activated Carbon

2011 ◽  
Vol 413 ◽  
pp. 38-41
Author(s):  
Xiu Ling Song ◽  
Hui Qian
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Nitric Acid ◽  
Ph Value ◽  
Removal Rate ◽  
Freundlich Isotherm ◽  
Exchange Capacity ◽  
Modified Activated Carbon ◽  
Exchange Adsorption ◽  
Adsorption Curve

After activated carbon is oxidized and modified with nitric acid (1:1), its cation exchange capacity can amount to 1.840 mmol • g-1. The modified activated carbon is used as adsorbent for the treatment of Cr (Ⅵ)-containing wastewater at room temperature, and its removal mechanism is discussed in this paper. It is shown that: when the pH value of the aqueous solution being 2.5-3.0;the adsorption time being 3.0h, the removal rate of Cr (Ⅵ) in the aqueous solution can reach 97% and its adsorption capacity can amount to 45.66 mg • g-1. From the results, it can be also seen that the adsorption curve to chromium in wastewater by the modified activated carbon better meets the Freundlich isotherm, and ion exchange adsorption mainly does its work.

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