Sorption of nickel ions from aqueous solutions using activated carbon derived from walnut shell waste

2010 ◽  
Vol 16 (1-3) ◽  
pp. 282-289 ◽  
Author(s):  
Gang Wang ◽  
Aimin Li ◽  
Mingzhi Li
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Walnut Shell ◽  
Nickel Ions ◽  
Shell Waste

Removal of lead(II) and zinc(II) ions from aqueous solutions by adsorption onto activated carbon synthesized from watermelon shell and walnut shell

Adsorption ◽  
2013 ◽  
Vol 19 (2-4) ◽  
pp. 675-685 ◽  
Author(s):  
Jonathan Julián Moreno-Barbosa ◽  
Catalina López-Velandia ◽  
Andrea del Pilar Maldonado ◽  
Liliana Giraldo ◽  
Juan Carlos Moreno-Piraján
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Walnut Shell

Sulfur-anchored palm shell waste-based activated carbon for ultrahigh sorption of Hg(II) for in-situ groundwater treatment

2021 ◽  
pp. 125995
Author(s):  
So Yeon Yoon ◽  
Seok Byum Jang ◽  
Kien Tiek Wong ◽  
Hyeseong Kim ◽  
Min Ji Kim ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Groundwater Treatment ◽  
Palm Shell ◽  
Shell Waste

scholarly journals Iron-modified activated carbon derived from agro-waste for enhanced dye removal from aqueous solutions

Heliyon ◽  
2021 ◽  
pp. e07191
Author(s):  
Fateme Barjasteh-Askari ◽  
Mojtaba Davoudi ◽  
Maryam Dolatabadi ◽  
Saeid Ahmadzadeh
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Dye Removal ◽  
Modified Activated Carbon

scholarly journals Preparation and Characterization of Novel Magnesium Composite/Walnut Shells-Derived Biochar for As and P Sorption from Aqueous Solutions

Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 714
Author(s):  
Vladimír Frišták ◽  
Martin Pipíška ◽  
Vladimír Turčan ◽  
Stephen M. Bell ◽  
Haywood Dail Laughinghouse ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Anthropogenic Sources ◽  
Walnut Shell ◽  
Natural Ecosystems ◽  
Functional Changes ◽  
P Sorption ◽  
Sorption Efficiency ◽  
Walnut Shells ◽  
Potential Capacity ◽  
Sorption From Aqueous Solutions

Elevated or unnatural levels of arsenic (As) and phosphorus (P) concentrations in soils and waterbodies from anthropogenic sources can present significant hazards for both natural ecosystems and human food production. Effective, environmentally friendly, and inexpensive materials, such as biochar, are needed to reduce mobility and bioavailability of As and P. While biochar features several physicochemical properties that make it an ideal contaminant sorbent, certain modifications such as mineral-impregnation can improve sorption efficiencies for targeted compounds. Here, we conducted sorption experiments to investigate and quantify the potential utility of magnesium (Mg) for improving biochar sorption efficiency of P and As. We synthesized a Mg-modified walnut shells-derived biochar and characterized its ability to remove As and P from aqueous solutions, thereby mitigating losses of valuable P when needed while, at the same time, immobilizing hazardous As in ecosystems. SEM-EDX, FTIR and elemental analysis showed morphological and functional changes of biochar and the formation of new Mg-based composites (MgO, MgOHCl) responsible for improved sorption potential capacity by 10 times for As and 20 times for P. Sorption efficiency was attributed to improved AEC, higher SSA, chemical forms of sorbates and new sorption site formations. Synthetized Mg-composite/walnut shell-derived biochar also removed >90% of P from real samples of wastewater, indicating its potential suitability for contaminated waterbody remediation.

Sign in / Sign up

Export Citation Format

Share Document