Made with charcoal to stimulate acid with different concentrations, and test effective in absorbing dye and heavy metal concentrations are not too high, the results table 2.
Were stimulated with acid batteries with different concentrations were tested to absorb dyes and heavy metal concentration is very high, the results in Table 2.
The stimulation with different concentrations of acid with charcoal and the test efficiency in absorbing dyes and heavy metal concentration is not very high yield as the table 2.