Biochar efficiency in copper removal from Haplic soils
PBN-AR
Instytucja
Instytut Agrofizyki im. Bohdana Dobrzańskiego Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
International Journal of Environmental Science and Technology
ISSN
1735-1472
EISSN
1735-2630
Wydawca
CTR ENVIRONMENT & ENERGY RESEARCH & STUDIES
DOI
URL
Rok publikacji
2019
Numer zeszytu
Strony od-do
1-14
Numer tomu
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
angielski
Copper removal
pH condition
Biochar
Haplic soil
Streszczenia
Język
angielski
Treść
The main aim of the study was to examine the biochar efficiency in copper (Cu) ion removal from Haplic (Luvisol, Podzol) soils. In other words, the most effective biochar dose and the most favorable environment pH value were proposed. The copper removal was carried out based on the adsorption process. The results of kinetics measurements were modeled using Richie equation, whereas the adsorption isotherms using Langmuir–Freundlich and Dubinin–Radushkevich equations. The copper removal is a strongly pH-dependent process which is associated with variability of chemical Cu forms and various reactivities of organic molecules. The Cu adsorption amount was higher on silty Haplic Luvisol than on sandy Haplic Podzol mainly due to higher content of organic carbon, functional groups, clay and silt fractions as well as larger surface area. Moreover, the biochar addition increased linearly the soil surface charge and contributed to higher copper adsorption in the whole range of investigated ion concentrations. The higher the biochar dose added, the more Cu ions were adsorbed.
Cechy publikacji
original_article
Inne
System-identifier
PX-5c50541ad5def8a514c18548
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