METHOD OF TREATMENT OF SEWAGE Russian patent published in 1995 - IPC

FIELD: treatment. SUBSTANCE: sewage together with coke introduced in it at a rate of 1 to 15 g per cubic meter is passed through stationary porous layer of iron particles containing additional insulated electrode at simultaneous action of direct current and variable magnetic field at magnetic induction of 0.08 to 0.20 T; stationary layer of iron particles is connected to positive pole and additional electrode is connected to negative pole of current source. Current density is 100 to 250 A/sq.m. EFFECT: enhanced efficiency. 3 cl, 1 tbl