Download ability of activated carbon to remove various substances from water

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ABILITY OF ACTIVATED CARBON TO
REMOVE VARIOUS SUBSTANCES FROM WATER
Self Health Resource Center can only
cite research that is based on accepted
government science when selling
products. Dr. Clark may find that the
filter filters out additional contaminants,
however we cannot talk about this
discovery if it is not collaborated by
studies accepted by US Government.
Adsorption in activated carbon is an
important tool for water purification. It
applies especially to dissolved organic
substances which are responsible for
taste or odor, or may actually be of an
irritating or poisonous nature. Also,
activated charcoal removes some
substances by catalytic reaction
(chlorine, for example). Activated carbon
also removes certain types of particulate
matter by mechanical filtration action,
and some substances such as a
suspension of an organic vapor by a
combination of filtration and adsorption
means.
The capacity of activated carbon to
remove specific substances and
mixtures depends on the nature of the
specific chemical compounds, their
concentration, conditions of adsorption,
such as temperature, pressure, contact
time, etc., and how the activated carbon
is applied to the problem. :
The accompanying table classifies the
ability to be removed for specific
chemical compounds and describable
substances and mixtures according to
the following- arbitrary scale
Arbitrary Scale
0 - Not a logical use for activated
carbon.
1 - Category too broad and non-specific,
need more information.
2 - Possibility. Suggest making
laboratory and pilot tests. Success may
be a matter of definition.
3 - Might be an application, either alone
or in combination with other treatment
methods.
4 - May be good solution, but special
conditions apply, or activated carbon
can serve as one step in total treatment.
may not be a complete solution in itself.
5 - Fair application, removed to some
degree by activated carbon. Good
application, but requires definition of
results to be obtained.
6 - Definite application for activated
carbon under some conditions.
7 - Good application, removed in
satisfactory quantity by activated
carbon.
8 - Excellent application, removed in
high quantity by activated carbon.
9 - Proven use, probably best solution.
Since the above mentioned factors exert
considerable control over capacity, it
must be borne in mind that the figures
given in the table are for general
guidance only. The specific case should
be tested on laboratory and pilot scale if
it is a new application.
Accidental spills of toxic materials 7
Acetaldehyde 7
Acetic add 7
Acetone 8
Activated sludge effluent 6
Air purification scrub water 6
Alcohol 8
Alkali 2
Amines 6
Ammonia 2
Amyl acetate 9
Amyl alcohol 9
Animal excrement 6
Antifreeze 7
Aquarium water 7
Benzenes 9
Bilge water 6
Biochemical warfare agents 6
Bleaching solutions 3 9
Boiler blowdown water 3
Boiler compounds 4
Boiler condensate 6
Bottle washing 6
Brackish water 3
Butyl acetate 9
Butyl alcohol 9
By-products, organic 6
Calcium hypochlorite 9
Can, drum washing 6
Carbon dioxide 0
Cheese manufacturing wash water 6
Chemical tank wash water 6
Chloral 9
Chloraimne 7
Chlorobenzene 9
Chlorine 9
Chlorophenol 9
Chlorophyll 8
Cistern water 7
Citric acid 8
Coal mine drainage water 0
Condensation (from ref. coils) 6
Cresol 9
Dairy or milk processing wash water 6
Decayed leaves 8
Decayed organic matter 8
Decaying substances 8
Defoliants 9
Deionized water 6
Detergents 6
Dissolved oil 9
Dyes 9
Electroplating rinse water 4
Emulsions 4
Ethyl acetate 9
Ethyl acrylate 9
Ethyl alcohol 9
Ethyl a mine 8
Ethyl chloride 8
Ethyl ether 8
Fermentation slop 3
Fertilizers 3
Fiber and fabric washing 3
Filter backwash 3
Fluorides 4
Food processing wash water 4
Food processing waste 4
Formaldehyde 4
Fruit processing waste 3
Gasoline 9
Glycol 9
Hardness 0
Herbicides 9
Hydrogen bromide 4
Hydrogen chloride 2
Hydrogen fluoride 2
Hydrogen iodide 4
Hydrogen selenide 5
Hydrogen sulfide 5
Hypochlorous add 9
Imhoff effluent 3
Industrial wastes 3
Inorganic acids 1
Inorganic chemicals 1
Insecticides 9
Iodine 9
Isopropyl acetate 9
Isopropyl alcohol 9
Ketones 9
Laboratory drains 3
Lactic acid 8
Lake water 8
Laundry effluent 4
Leaf extract 9
Lime 0
Liquid contaminants 2
Lysol 9
Mercaptans 8
Metal salts 1
Methyl acetate 8
Methyl alcohol 8
Methyl bromide 9
Methyl chloride 8
Methyl ethyl ketone 9
Naptha (coal tar) 9
Nitric acid 5
Nitro benzenes 9
Nitrotoluene 9
Odor of unknown origin 6
Oil slick 4
Organic acids 8
Organic esters 9
Organic odor 7
Organic poisons 8
Organic salts 7
Organic taste 7
Oxalic acid 9
Oxidizing agents 3
Ozone 8
Packing house effluent 4
Paper mill effluent 4
Particulate matter 4
Phenol 9
Phosphates 0
Photographic wash water 4
Pickle liquor 1
Plastic monomers 7
Plumbing drain 6
Poisons 5
Polluting substances 3
Potassium permanganate 8
Precipitated iron 4
Precipitated sulfur 3
Process drain 4
Propionaldehyde 5
Propionic acid 8
Propyl acetate 8
Propyl alcohol 8
PropyI chloride 8
Putrefying substances 4
Radioactive solutions 1
Rain water 9
Recycled water 6
Residual brine from electrolysis 3
River water 9
Rubber & plastic hose taste 9
Salt water 2
Sea water 2
Sediment 2
Sewage plant effluent 5
Soap 5
Sodium hypochlorite 9
Soluble iron 4
Soluble sulfur 4
Solvents 8
Sour milk 5
Spoiled foods 5
Spring water 9
Stagnant water 5
Starch 5
Stick water 5
Sugar 5
Sulfonated oil 8
Sulfuric acid 3
Suspended matter 4
Suspended oil 4
Sweet water 8
Swimming pool water 8
Tanning waste 5
Tar emulsion 8
Tartaric acid 8
Taste of unknown origin 6
Toluene 9
Toluidine 9
Trichlorethylene 9
Trickle filter effluent 6
Turpentine 9
Urine 4
Vegetable processing waste 4
Vinegar 7
Waste products 4
Well water 9
Wine industry wash water 5
Wool scouring water 5
Xanthophyll 8
Xylene 9