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[137170] Artykuł:

The influence of the shape and grain size of commercial activated carbons on their sorption efficiency towards organic water pollutants

Czasopismo: Desalination and Water Treatment   Tom: 321, Zeszyt: 100996
ISSN:  1944-3986
Opublikowano: 2025
 
  Autorzy / Redaktorzy / Twórcy
Imię i nazwisko Wydział Katedra Do oświadczenia
nr 3		 Grupa
przynależności		 Dyscyplina
naukowa		 Procent
udziału		 Liczba
punktów
do oceny pracownika		 Liczba
punktów wg
kryteriów ewaluacji
Krzysztof Kuśmierek Niespoza "N" jednostkiNauki chemiczne33.00.00  
Lidia Dąbek orcid logo WiŚGiEKatedra Inżynierii SanitarnejTakzaliczony do "N"Inżynieria środowiska, górnictwo i energetyka33100.00100.00  
Andrzej Świątkowski Niespoza "N" jednostkiNauki chemiczne33.00.00  

Grupa MNiSW:  Publikacja w czasopismach wymienionych w wykazie ministra MNiSzW (część A)
Punkty MNiSW: 100

DOI LogoDOI    
Keywords:

2  4-D  Paracetamol  Adsorption  Activated carbon  Grain size and shape 


Abstract:

In this paper, the influence of the shape and grain size of commercial activated carbons on their adsorption
efficiency towards organic water pollutants has been investigated. The powdered (L2S), granular (F300), and
extruded (WG12) activated carbons were used as adsorbents, while the herbicide (2,4-dichlorophenoxyacetic
acid; 2,4-D) and the pharmaceutical (paracetamol; PAR) were chosen as model water pollutants. Adsorption
kinetics and adsorption at equilibrium as well as the effect of pH and ionic strength of the solution, were studied.
The results showed that the adsorption kinetics followed a pseudo-second-order model and was controlled by the
film diffusion. The adsorption rates of 2,4-D and PAR were influenced by both the particle size of the activated
carbons tested and their porous structure. The smaller the adsorbent grains and the higher the mesopore volume,
the faster the adsorption (WG12 < F300 < L2S). Adsorption at equilibrium was best described by the Langmuir
isotherm and was closely related to the specific surface area of the activated carbons rather than to their grain
size and shape. The adsorption capacities of L2S, F300, and WG12 were 277.8, 357.1 and 322.5 mg/g for 2,4-D,
and 208.3, 250.1 and 277.3 mg/g for PAR, respectively.


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