Degradation process of polyvinyl alcohol product and equipment system

The invention discloses a degradation process of a polyvinyl alcohol product and an equipment system. The polyvinyl alcohol product is subjected to pyrohydrolysis, chemical oxidation and degerming treatment and becomes an organic acid mixed solution, meanwhile, a small quantity of insoluble substances and radioactive substances filtered and collected in the process are subjected to compression volume treatment and are sealed in concrete blocks or a metal container according to the hazard degrees of the insoluble substances and the radioactive substances for reutilization or deep burying treatment, and the treatment quantity and treatment cost of waste are reduced to a large degree through the technology; and the organic acid mixed solution is further subjected to dual-stage high-temperature oxidation treatment and is fully decomposed into carbon dioxide and water, in the high-temperature oxidation process, COD and BOD in the solution can be greatly reduced, can reach the waste solutiondischarge standard and c