For household applications ,water purification requires activated carbon (AC) It removes chlorine ,Odors, most of the natural organic compounds and some chemicals. Activated carbon can effectively remove a wide range of natural organic compounds including humic substances, fulvic acids, tannins, pesticides, pharmaceuticals, and other dissolved organic matter.
Our low ash AC carbon would impart natural sweetness if required
Special grade catalytic carbon removes chlorine, chloramines and other disinfectant by products (DBP) which may come from municipal water treatment units.In addition this grade works faster and last longer thant other two grades.
If ground water is used,our AC helps in removal of odours,H2S,other VOC, some Minerals like Iron, Copper etc.
All our above mentioned products are NSF 61 certified for use in drinking water purifications.
Yes,definitely. There is a host of other uses for which please refer Industrial application section.
There are two properties in AC that help in above purification processes.
First one is adsorption inside a large number of pores having very large surface area in a given weight.; where contaminant molecules are captured and trapped. These trapped molecules would not come back to water under normal operating conditions.
The other property is catalytic activity present in all grades of carbon but much enhanced in catalytic carbon. This property converts harmful molecules in to non harmful products at low concentrations.
Yes, nad this depends on the amount of contaminants in the water and the amount of water filtered. Under average household conditions using municipal water and average filter volume would last for about six months. However ,the volume of water which can be treated is generally indicated in the supplier’s pack.
There are several carbon containing materials both natural and mieral types are used as raw matereials in the production of Ac
Renewable raw materials –Wood ,coconut shells, pecanshells and other fruit stones.
- Mined raw materials – coal, lignite etc
- Petroleum based raw materials .
- Synthetic chemical based raw materials .
There are basically two processes for production of activated carbon. Steam / carbon dioxide activated and Chemical activation.In the activation process ,a network of pores are gradually developed inside charcoal.This network can be compared with similarity to development of a root system in a tree; albeit in a minuscule scale compared to that of a tiny pant.
Our coconut shell based AC is produced by steam activation.
Different starting material give AC with different properties. For example coconut shell based activated carbon has majority of small size pores (micropores )whereas wood based steam activated Carbon has more of large pores (macropores ).
Micropores: pores less than 2 nm (nanometer); Mesopores: pores between 2 and 50 nm; Macropores: pores greater than 50 nm
For comparison the width of a human hair can range from 40,000-60,000 Nanometers.
Depending on the pore size distribution the usage also differs. Whereas coconut shell based carbon is used more in gas phase applications and drinking water purification ,wood based and coal based carbons are used more in waste water treatment, decolorizing applications etc.
Steam Activation gives mostly micropore containing AC suitable for capturing small molecules such as gas,chemicals with small molecules such as chlorine,gold etc while chemical activation gives more of macropore containing AC suitable for capturing large molecules such as those in pigmants and colurd insugar,oil etc.
In addition thesurface properties of AC are different in these two types of activation.
These three forms of AC are presently available for various applications.
Granular is between …mm down to ……. Or mesh sizes 3 to 80 (ASTM)
Powder is smaller than …mm Or mesh sizes below 80 (ASTM )
Pellatized carbons are with diameters 2-6 mm generally and lengths av 5-7 mm (similar form to pencil lead)
Silver ( mostly in nitrate from ) is combined (by methods of impregnation) with AC in special ways that it remains bound to Activated carbon surfaces.
- Silver naturally kills bacteria by fracturing its cells .
- Silver impregnated carbon is used in domestic water filters as well as travelers /campers water filters .
Ac would remove all harmful chemicals to fish which may come from feed water and also generated by bacterial action on fish exertions and feeding material left uneaten and any other petrifying material in the fish tank.
Having Water continuously passing through our AC filter would ensure clean and bacteria free healthy environment for fish.