Hi Adil,

You can try to decrease the pH (add H3PO4 or HCl) to dissolve the carbonates.

Hi Adil,

Your question is not clear. In general you can extract your sample first using organic solvent like methylene chloride(CH2Cl2) to remove organic substance, then you can extract the remaining using water for extraction to remove salts. then evaporate the solvent in every fractions.Good luck

Hi Salim

Thank u for your response to my question. I want to know a simple method to remove water soluble salts and carbonate and heavy metal from domestic sewage sludge biochar. I found that Acidifying biochar can remove these elements what u think????

Regards