Details: 5 pound bag, 5 cups for every 100 gallons
Superior to charcoal this carbon is specially designed and formulated for use in ponds to remove toxic organic
waste, clear discolored water, chlorine, chloramines and remove foul odors.
Activated carbon, also know as Lignite, is produced from a browish-black coal
when the variance of vegetable matter has gone further than in peat. Also known
as brown coal, its the best choice for water garden ponds. As one of the softer
Activated Carbons, you can grind off most of the bio-film that has accumulated
by simply kneading the bag during your routine filter cleaning. By drying or
boiling the activated carbon, you can also help to reduce the bio film.
Thanks to its large pore size, activated carbon is more effective than the
coconut shell of other types of carbon. It takes only 6 grams of Lignite
Activated Carbon to be equal in surface area of a football field.
Pond Water Application of Lignite Activated Carbon
- Dosage-- For routine maintenance- 1pound (dry) per 1000gallons -replace
in 6 months.
- For known problems i.e. pesticides, soap, detergents etc.--3lbs(dry) per
1000gallons--replace in 1 month.
- Contact Time-- Depending on the organic content, contact time should be
a minimum of five minutes and up to 1 hour. Its recommended flow is 2
gallons per minute. Activated Carbon is less effective at high water
temperatures and high PH.
- Regeneration--Since Activated Carbon can only be recharged by high heat
(900-1600 degrees F) it should be discarded after 6 months of normal use,
earlier if used to adsorb heavy known concentrations of pollutants.
Adsorption Process
How well the adsorption process works, depends on the time in the water (and
the pollutant), how much water is passing through, how many pores on the carbon,
the concentration of the pollutant and the solubility and molecular weight of
the compound being removed. De-Absorption properties of Activated Carbon have no
bearing on pond water management. The industrial process used to de-adsorb
metals is a chemical process that will never happen in a pond.
Note--A/C cannot adsorb Ammonia, Nitrite or Nitrates, but the surface area of A/C is so large bacterial colonies will be formed after 28 days or so and will convert these substances by the nitrification process.
