scholarly journals The Thermodynamics of Heavy Metal Sorption onto Lignocellulosic Biomass

Heavy Metals ◽  
2018 ◽  
Author(s):  
Carlos Escudero-Oñate ◽  
Isabel Villaescusa
Keyword(s):  
Heavy Metal ◽  
Lignocellulosic Biomass ◽  
Metal Sorption ◽  
Heavy Metal Sorption

ASSESSING THE RELATIONS BETWEEN THE SURFACE PROPERTIES OF BIOCHARS AND HEAVY METAL SORPTION

2020 ◽  
Author(s):  
Amy Lam ◽  
◽  
Todd Longbottom ◽  
Nelli K. Bodiford ◽  
Omar R. Harvey
Keyword(s):  
Heavy Metal ◽  
Surface Properties ◽  
Metal Sorption ◽  
Heavy Metal Sorption

scholarly journals Heavy Metal Sorption by Sludge-Derived Biochar with Focus on Pb2+ Sorption Capacity at μg/L Concentrations

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1559
Author(s):  
Ida Sylwan ◽  
Hanna Runtti ◽  
Lena Johansson Westholm ◽  
Henrik Romar ◽  
Eva Thorin
Keyword(s):  
Experimental Data ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Sorption Capacity ◽  
Municipal Wastewater ◽  
Metal Removal ◽  
Metal Exposure ◽  
Isotherm Models ◽  
Metal Sorption ◽  
Heavy Metal Sorption

Municipal wastewater management causes metal exposure to humans and the environment. Targeted metal removal is suggested to reduce metal loads during sludge reuse and release of effluent to receiving waters. Biochar is considered a low-cost sorbent with high sorption capacity for heavy metals. In this study, heavy metal sorption to sludge-derived biochar (SDBC) was investigated through batch experiments and modeling and compared to that of wood-derived biochar (WDBC) and activated carbon (AC). The aim was to investigate the sorption efficiency at metal concentrations comparable to those in municipal wastewater (<1 mg/L), for which experimental data are lacking and isotherm models have not been verified in previous works. Pb2+ removal of up to 83% was demonstrated at concentrations comparable to those in municipal wastewater, at pH 2. SDBC showed superior Pb2+ sorption capacity (maximum ~2 mg/g at pH 2) compared to WDBC and AC (<0 and (3.5 ± 0.4) × 10−3 mg/g, respectively); however, at the lowest concentration investigated (0.005 mg/L), SDBC released Pb2+. The potential risk of release of other heavy metals (i.e., Ni, Cd, Cu, and Zn) needs to be further examined. The sorption capacity of SDBC over a metal concentration span of 0.005–150 mg Pb2+/L could be predicted with the Redlich–Peterson model. It was shown that experimental data at concentrations comparable to those in municipal wastewater are necessary to accurately model and predict the sorption capacity of SDBC at these concentrations.

Heavy metal sorption of compost materials

2007 ◽  
Vol 35 (2) ◽  
pp. 653-656 ◽  
Author(s):  
Noémi Kovács ◽  
György Füleky
Keyword(s):  
Heavy Metal ◽  
Metal Sorption ◽  
Heavy Metal Sorption

scholarly journals Bioflocculant production and heavy metal sorption by metal resistant bacterial isolates from gold mining soil

Chemosphere ◽  
2019 ◽  
Vol 231 ◽  
pp. 113-120 ◽  
Author(s):  
Ayansina Segun Ayangbenro ◽  
Olubukola Oluranti Babalola ◽  
Oluwole Samuel Aremu
Keyword(s):  
Heavy Metal ◽  
Gold Mining ◽  
Metal Sorption ◽  
Bacterial Isolates ◽  
Mining Soil ◽  
Heavy Metal Sorption

Nanogel and super-paramagnetic nanocomposite of thiacalix[4]arene functionalized chitosan: synthesis, characterization and heavy metal sorption

2014 ◽  
Vol 23 (12) ◽  
pp. 933-945 ◽  
Author(s):  
Moslem Mansour Lakouraj ◽  
Fereshteh Hasanzadeh ◽  
Ehsan Nazarzadeh Zare
Keyword(s):  
Heavy Metal ◽  
Metal Sorption ◽  
Heavy Metal Sorption

Heavy metal sorption and desorption capacity of soils containing endogenous contaminants

2007 ◽  
Vol 143 (1-2) ◽  
pp. 419-430 ◽  
Author(s):  
Emma Fernández Covelo ◽  
Flora Alonso Vega ◽  
M. Luisa Andrade
Keyword(s):  
Heavy Metal ◽  
Metal Sorption ◽  
Heavy Metal Sorption ◽  
Desorption Capacity
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