Method and device for preparing peroxylactic acid disinfectant using waste polylactic acid
By converting waste polylactic acid into peroxylactic acid disinfectant through an electrochemical method, the issues of resource utilization of waste polylactic acid and safety of disinfectant are solved, achieving efficient and safe water treatment results.
CN122105439APending Publication Date: 2026-05-29FUZHOU UNIV
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FUZHOU UNIV
- Filing Date
- 2026-03-04
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
Waste polylactic acid is difficult to utilize efficiently, and traditional disinfectants pose safety hazards during storage, transportation, and use, with high risks associated with disinfection byproducts.
Method used
Waste polylactic acid is hydrolyzed into lactic acid using an electrochemical method, and peroxylactic acid disinfectant is synthesized in situ in an electrochemical reactor via an anodic oxidation reaction. The disinfectant is then prepared on-site using a solar-powered device.
Benefits of technology
It enables the high-value utilization of waste polylactic acid, has high disinfectant safety, few by-products, is suitable for drinking water and reclaimed water treatment, reduces operating costs and improves the system's independence and adaptability.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122105439A_ABST
Abstract
The application provides a method and device for preparing peroxylactic acid disinfectant by using waste polylactic acid, the device comprising a power supply assembly, an anode chamber, a cathode chamber and a cation exchange membrane for separating the anode chamber and the cathode chamber. A ruthenium-based electrode is arranged in the anode chamber. A titanium-based electrode is arranged in the cathode chamber, and sodium sulfate electrolyte is arranged in both the anode chamber and the cathode chamber. The ruthenium-based electrode and the titanium-based electrode are connected with the power supply assembly. In the application, the waste polylactic acid is hydrolyzed to obtain a lactic acid solution; then the lactic acid solution is added into the anode chamber and the cathode chamber of the device for preparing peroxylactic acid disinfectant, and then the device is started and runs in a constant current state to obtain the peroxylactic acid disinfectant. Compared with the prior art, the application realizes high-value resource utilization of the waste PLA, has the advantages of in-situ generation, high safety, few disinfection by-products, low operation cost and strong adaptability, and is suitable for drinking water treatment, reclaimed water reuse and decentralized water supply system.
Need to check novelty before this filing date? Find Prior Art