METHOD OF ELECTROOSMOTIC UNWATERING OF WET OBJECTS Russian patent published in 2001 - IPC

FIELD: separation of solid and liquid media. SUBSTANCE: method of electroosmotic unwatering of wet object includes transmission of direct current between electrodes of reversible source of electric energy placed in unwatered zone of this object. One of electrodes is positioned in unwatered zone of wet object. Comparison electrode and transmitter of electrochemical potential are installed near electrode placed in unwatered zone. Stationary potential between electrode in unwatered zone and comparison electrode is measured when reversible source of electric energy is switched off. This potential is assumed as beginning of reading, reversible source of electric energy is switched on and polarization component of positive displacement relative to assumed beginning of reading of potential between comparison electrode and transmitter of electrochemical potential is measured as well as ohmic component of positive displacement of potential with reference to assumed beginning of reading between electrode in unwatered zone and comparison electrode. Ratio λ of polarization component of positive displacement of potential between comparison electrode and transmitter of electrochemical potential to ohmic component of positive displacement of potential with regard to assumed beginning of reading between electrode in unwatered zone and comparison electrode. If value λ lies within limits from 0.9 to 1.0 polarity of reversible source of electric energy is changed, polarization component of negative displacement relative to assumed begging of reading of potential between comparison electrode and transmitter of electrochemical potential is measured and when mentioned measured value lies within limits from 0 to -0.1 V polarity of reversible source of electric energy is changed. EFFECT: optimization of process of change of polarity of electrodes, provision for independence of process of change from external conditions which in its turn increases efficiency of process of electroosmotic dewatering of wet object. 3 dwg