▎ 摘　　要

NOVELTY - Simple treatment device comprises a sewage treatment tank (1) provided with more than one layer of sewage treatment drawer (4). The sewage treatment drawer and the sewage treatment tank are glidingly connected, and the adjacent two layers of the sewage treatment drawer are staggered. The upper part of the first layer of the sewage treatment drawer and the lower part of the last layer of sewage treatment drawer are respectively provided with a water inlet pipe (2) and a water outlet pipe (3). The inner part of the sewage treatment drawer is provided with an electromagnet. The upper end surface of the sewage treatment drawer is connected with multiple composite strips. The composite strip comprises a plastic substrate and a composite gel. The composite gel layer is composed of multiple composite gel. USE - The device is useful for wet regeneration of sewage from old sand of casting sodium silicate. ADVANTAGE - The device: reduces the turbidity of sewage; and makes the treated sewage meet the discharge requirements. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a first angle of the simple treatment device for wet regeneration of sewage from old sand of casting sodium silicate. Sewage treatment tank (1) Water inlet pipe (2) Water outlet pipe (3) Sewage treatment drawer (4) Supporting rod (5) Supporting column (7) Moving clapboard (8) Baffle plate (10) Guide plate (11) Exhaust pipe (12) Viewing mirror (14) Taking liquid pipe (15) Pin rod (16) Rotating plate (17) Water inlet branch pipe (21) Water inlet valve (22) Branch pipe valve (23) Taking liquid pipe valve (151)