To make charcoal, kamman is a high value surface parking space. Which low-ash coal with kamman is NL5, respectively, which the more NL volume low ash can absorb nutrients. As shown table 3.
Makes activated carbon has a surface high. The activated carbon has a low ash content NL NL5 respectively, even with low ash content, can absorb a lot. As shown in Table 3
Make the surface of activated carbon was high. The activated carbon with low ash content is NL NL5 respectively, which have the low ash content can ดูดซับสาร as much as shown in Table 3.