METHOD OF PREPARING CARBON-MINERAL ADSORBENT Russian patent published in 2000 - IPC

FIELD: sorbents. SUBSTANCE: to prepare adsorbent for cleaning and detoxification of waste and natural waters polluted by organics, 1 wt part of exhausted clay-containing drilling mud is mixed with 0.06 to 0.25 wt parts of grass flower (milled vegetable waste of cereal grains and leguminous plants) and mixture is thermally treated at 850-900 C for 0.3-0.4 hr. EFFECT: increased strength of adsorbent and raised its adsorption capacity when removing petroleum derivatives and synthetic surfactants at their concentrations exceeding micelle formation concentration. 2 cl, 1 tbl, 3 ex