The phrase "activated coal" is correct and usable in written English.
It is typically used in contexts related to filtration, purification, or chemical processes where activated carbon is employed to adsorb impurities or toxins.
Example: "The water treatment facility uses activated coal to remove contaminants from the water supply."
Alternatives: "activated carbon" or "activated charcoal".
open square non-treated subbituminous coal; open circle commercial activated coal; open triangle our xanthated coal; cross commercial synthetic resin; plus our activated coal.
Fig. 2 Hermetic cooler for activated coal.
On the other hand, activated coal had the highest R 2 rate by Freundlich's adjustment model (0.991).
The comparison between the removal percentages of the three biosorbents and the removal percentage of a commercial adsorbent (activated coal) shows that the latter has a Cd2+ removal capacity which is higher than adsorbents, especially with regard to endosperm + peel (E + T), as from 160 mg L−1, higher than activated coal.
Consequently, biosorbents from jatropha endosperm (E) and from endosperm + peel (E + T) and activated coal have E rates higher than 8.0 kJ mol−1, and thus the predominance of chemical adsorption in the adsorption process.
In the current assay, the comparison of Cd2+ removal capacity between jatrophas's adsorbents and a commercial adsorbent was undertaken by experiments within the same conditions for biosorbents, or rather, activated coal P.A. Synth®, widely used in the removal of pollutants in water matrixes (Oliveira et al. 2008).
ACB attained the 87% removal of THM precursors when Filtracarb® CC60 8 × 30 (steam activated mineral coal) was used with a hydraulic retention time of 15 min.
The No. 5 proportion (cement: sand: water: activated carbon: coal = 6 6 7 1.1 79.9) was chosen to be used in the similar material simulation test of steeply dipping and extra-thick coal seam with a density of 0.913 g/cm3 and an uniaxial compressive strength of 0.076 MPa which are in accordance with the similarity theory.
The ion exchange of the xanthated coal was compared against those of the original subbituminous coal, a sulfonated subbituminous coal, activated carbon, commercial activated carbon, and commercial synthetic resin.
The influence of xanthation temperature, coal particle size, and pre-oxidation with air on the exchange capacity of Cd2+ and Hg2+ were studied and the exchange capacity was compared against those of the original subbituminous coal, a sulfonated subbituminous coal, activated carbon, commercial activated carbon, and commercial synthetic resin.
This research work is carried out to investigate and characterise the iron oxide and copper oxide particles used in a chemical looping combustion system after 20 reduction oxidation cycles with 5 different fuels, (i.e. Hambach lignite coal, Hambach lignite char, activated carbon, Taldinski bituminous coal and US bituminous coal).
