Biochar and charcoal are similar
materials with different purposes. Charcoal, a fuel and metal reductant,is
considered to be the oldest man-made material. The advantage of charcoal is
that it burns with less smoke, which is advantageous when cooking indoors. In
addition, charcoal burns hotter than wood, which allows it to be used for metal
forming, such as in blacksmithing.
Adsorption is a pivotal property
that distinguishes biochar from other carbon-rich natural products. Adsorption
also distinguishes superior biochars from less effective “agricultural
charcoals”. Since biochar is so new, there are no analytical methods developed
specifically to measure adsorption in biochar, nor any experience base to
relate adsorption to biochar impact when added to growing system. Thus, urgently needed the standard biochars.
Following paper will give analytical options for biochar adsorption and surface
area, please go here.
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