ADSORPTIONALLY ACTIVE DERIVATIVES OF RICE HUSK AND MANGO SEED SHELLS
The wastes generated in Myanmar for cleaning rice grains (rice husk - RH) and processing fruits of one of the most important varieties of cultivated fruits (shells of mango seeds - SM) are characterized. The fundamental possibility of using such waste to produce carbon adsorbents is noted. Rational conditions for the pyrolysis of wastes and activation of the resulting carbonizates with water vapor were revealed. An analysis of the properties of the target products revealed their relatively low quality as adsorbents. Processing alkaline carbonate of RH with alkali yielded a carbon residue, the chemical activation of which with ZnCl2, as well as that of SM, provides carbon adsorbents of substantially higher quality. The optimal conditions for the implementation of these operations and the technical indicators of their target products are given.