Packaging printing sewage treatment process

The invention discloses a packaging printing sewage treatment process. The treatment process comprises the following steps: firstly, classifying and collecting printing ink sewage and adhesive slurrysewage and carrying out pretreatment respectively, and then carrying out comprehensive biochemical treatment. According to the treatment process, after the sewage pretreatment of the two strands of sewage, the chemical oxygen demand (COD) of the ink sewage is greatly reduced, ink-containing waste residues in the sewage are intercepted and dried through a continuous filter pressing system, and suspended solid (SS) is effectively removed. After precipitated starch is removed from the adhesive slurry sewage, SS is greatly reduced. After the sewage pretreatment of the two strands of sewage, toxicand harmful substances can be greatly removed, biochemical improvement can be realized, and the subsequent biochemical treatment load is reduced. 本发明公开了一种包装印刷污水处理工艺，首先将油墨污水和胶浆污水分类收集并各自进行预处理，然后再进行综合生化处理，本发明两股污水经过预处理后，油墨污水的COD大为