Sources and Preparation:
Activated carbon derives from an organic source. Common ones used in water and waste water treatment include coal (bituminous or anthracite) and coconut shells. Carbon is formed when the basic source is burned in virtual absence of oxygen which drives off the heavy, organic molecules leaving about 30% of the original mass remaining. This carbonaceous material must be further treated or “activated” before it is useful in water treatment. Activation fulfills several functions, including further driving off unwanted molecules, but its major function is to open up huge numbers of pores in the media; it is these pores that result in such high adsorptive properties. The pore structure is so important because pores offer the extremely high surface area for contaminant adsorption.
Activated carbon (AC) is generally used in water treatmentfor removing free chlorine and / or organic compounds. Removal of organics from potable water could be to prevent common organic acids such as humic or fulvic from reacting with chlorine to form trihalomethanes (a class of known carcinogens) or, to treat waste water to remove any number of organic compounds to make the water suitable for discharge. Similar to other types of water treatment, however, AC filtration is effective for some contaminants and not effective for others. AC filtration does not remove microbes, sodium, nitrates, fluoride, and hardness. Lead and other heavy metals are removed only by a very specific type of AC and this would typically only be feasible for point-of-use household filters.
Our Activated Carbon are widely used for :-
* Water Purification
* Decolourisation in sugar processing
* High pressure boiler steam condensate polishing
* Vapour recovery
* Decolorising chemicals for extremely white sugar
* Flocculants for sugarcane juice clarification
* Antiscalants for evaporators
* Defoamers/ Antifoams for process applications & distilleries.