Abstract:
:The goal of the presented work was the evaluation and comparison of two biochars (produced from Sida hermaphrodita - BCSH/laboratory produced and from wheatstraw - BCS/commercial available) to adsorb heavy metal ions (Cd(II), Cu(II) and Zn(II)) from water. Kinetics of the sorption as well as sorption isotherms, the influence of solution pH and interfering ions were investigated. Different physico-chemical properties of biochars had the great influence on adsorption capacity. The greater adsorption efficiency was observed for BCSH than for BCS in the case of all investigated metals. The adsorption efficiency of BCSH was correlated with higher content of carbon and oxygen, what is equal with higher content of polar-groups on the BCSH surface e.g., -COOH. Furthermore, the molar ratio of O/C as well as polarity index (which was higher for BCSH) was also important parameters.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Bogusz A,Oleszczuk P,Dobrowolski Rdoi
10.1016/j.biortech.2015.08.006subject
Has Abstractpub_date
2015-11-01 00:00:00pages
540-9eissn
0960-8524issn
1873-2976pii
S0960-8524(15)01108-6journal_volume
196pub_type
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