activated carbon

Definitions

  • WordNet 3.6
    • n activated carbon powdered or granular carbon used for purifying by adsorption; given orally (as a slurry) it is an antidote for some kinds of poisons
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Usage

In literature:

The heat is produced principally from the carbon in the manure and straw, but you need active nitrogenous matter to start the fire.
"Talks on Manures" by Joseph Harris
It converts its oxygen, which is the aliment of animal life, into carbonic acid, which, be it remembered, is an active poison.
"Popular Education" by Ira Mayhew
Most of the alkaloids contain asymmetric carbon atoms and are, therefore, optically active, usually levorotatory, although a few are dextrorotatory.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher
The only sign of any remaining volcanic activity is the emission in many places of carbon dioxide and of heated waters.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2" by Various
While the lands are being uplifted, volcanic activity is likely to be vigorous and to add carbon dioxide to the air.
"Climatic Changes" by Ellsworth Huntington
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In news:

USFilter to Receive Patent for Midas Odor Control Media Activated Carbon .
Innovations in the Activated Carbon Industry.
Summary of the 9th Annual International Activated Carbon Conference.
The Biological Activated Carbon Process for Water Purification.
Granular activated carbon (GAC) has been used extensively for the removal of dissolved organics from drinking water.
B600-05 Powdered Activated Carbon .
This standard covers powdered activated carbon for use in adsorption of impurities for water supply service applications.
Carbon dioxide is a greenhouse gas which acts like a blanket in the atmosphere to trap heat (see my posting entitled Solar Activity, Greenhouse Gas Levels and Climate Change on Our Earth).
China has clearly overtaken the United States as the world's leading emitter of carbon dioxide, the main heat-trapping gas produced by human activity, a new study has found, its emissions increasing 8 percent in 2007.
This standard covers the procurement of granulated activated carbon (GAC) reactivation services and the use of reactivated GAC for water treatment.
After five years of legal wrangling, Scent- Lok announced this week that it has claimed victory and won a dismissal of all lawsuits challenging the effectiveness of its activated carbon scent-elimination clothing.
The Biological Activated Carbon Process for Water Purification .
The granulated activated carbon (GAC) testing will begin early next month, Safety-Service Director Jeff Hazel said.
Activated carbon properties determine filtration performance.
Activated carbon (AC) is a common component in many water treatment devices.
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In science:

The 3a reactions produce some carbon (of the order of 10−10 in mass fraction) which activates then the usual CNO cycle.
SPINSTARS at low metallicities
Complement activation and protein adsorption by carbon nanotubes.
Carbon Nanotubes in Biology and Medicine: in vitro and in vivo Detection, Imaging and Drug Delivery
They observed large activation energies for in-plane migration, which point towards strong covalent carbon-metal bonding and high stability for such substitutional defects.
Magnetism of Substitutional Co Impurities in Graphene: Realization of Single $\pi$-Vacancies
Finally, several applications to fitting data, taken from the literature, of adsorption of some gases on activated carbon, molecular sieving carbon, silica gel, and pillared clays are presented.
Simple isotherm equations to fit type I adsorption data
Due to the complex pore structure of activated carbon, it is difficult to consider a subsystem as any specific region of the real adsorbent, for this reason it is convenient to regard each cell as an effective subsystem.
Simple isotherm equations to fit type I adsorption data
The zeocarbon synthesized by Lee et al. is a zeolite X/activated carbon mixture composed by 38.5 mass % zeolite X, 35 mass % activated carbon, 10 mass % inert silica, and 16.5 mass % zeolite A and P.
Simple isotherm equations to fit type I adsorption data
Since the zeocarbon is a zeolite/activated carbon composite, that the adsorbate phase may be divided into identical weakly-interacting effective subsystems is again a suitable assumption for fitting and correlation purposes.
Simple isotherm equations to fit type I adsorption data
These alveolar structures are used to house the active detection layers. A “h” structure consists of a central layer of tungsten wrapped in carbon fibre composite, sandwiched between two detection slabs.
Next Generation CALICE Electromagnetic Calorimeter
Si active porosity and "porous diamondlike" carbon.
Structural Flyby Characterization of Nanoporosity
Stars with initial masses M > 4 M⊙ also form some carbon dust, but only small amounts during their very last stage of evolution when hot bottom burning is no more active.
Evolution of interstellar dust and stardust in the solar neighbourhood
Dust growth in molecular clouds by accretion on existing grains needs to be considered in our model for silicate and carbon dust, since it is known that observed depletions of the elements in the ISM are too high as that only destruction can be active (cf.
Evolution of interstellar dust and stardust in the solar neighbourhood
ATIC is comprised of a fully active bismuth germanate calorimeter, a carbon target with embedded scintillator hodoscopes, and a silicon matrix that is used as the main charge detector.
Relative abundances of cosmic ray nuclei B-C-N-O in the energy region from 10 GeV/n to 300 GeV/n. Results from ATIC-2 (the science flight of ATIC)
We have calculated the active Raman modes of Li8C46 and studied their pressure dependence which could contribute to the identification of carbon clathrate crystals if synthesized for instance in a diamond anvil cell.
First-principles study of lithium-doped carbon clathrates under pressure
In emulsions, Hypernuclei were produced as hyperfragments on the emulsion components, like hydrogen, carbon, nitrogen, oxygen, silver and bromine, with a strong prevalence of the lighter nuclei; in bubble chambers, the helium was an active target.
Strangeness nuclear physics: a critical review on selected topics
Now this keto group is converted to the fully saturated carbon chain by the consecutive activities of β -ketoacyl reductase (KR), β -hydroxy-acyl dehydratase (DH) and enoyl reductase (ER).
Template-directed biopolymerization: tape-copying Turing machines
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