PFAS化学破坏方法
By using a hydroxide base and solvent system to heat the suspension in a batch reactor, PFAS are destroyed and inorganic fluorides are generated, which solves the problems of incomplete destruction and gaseous by-product emissions in incineration technology and achieves more environmentally friendly PFAS treatment.
CN122422018APending Publication Date: 2026-07-17
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Filing Date
- 2024-09-18
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing incineration technologies pose risks of secondary air and soil pollution due to incomplete destruction of PFAS, and produce harmful gaseous byproducts, for which there is a lack of effective capture and detection methods.
Method used
A system of hydroxide alkali and solvent is added to an intermittent reactor. The system is heated to form a suspension to destroy PFAS, generate defluorination waste products, and incinerate them when necessary to reduce the emission of harmful gaseous PFCs.
Benefits of technology
It effectively breaks down PFAS into inorganic fluorides, reducing the emission of gaseous PFCs, lowering the risk of environmental pollution, and providing a more sustainable treatment method.
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Figure CN122422018A_ABST
Abstract
提供了用于化学地破坏、降解和焚烧氟碳化合物或氟化材料（例如全氟烷基物质和多氟烷基物质（PFAS））同时减少气态PFC排放的系统和方法。该方法包括将氟化材料、氢氧化物碱和任选的溶剂体系在间歇反应器中混合以形成悬浮体。PFAS和溶剂体系可以由AFFF提供。将反应混合物加热至范围为约25℃至约400℃的温度约0.5小时至约240小时，以使PFAS中的氟碳化合物脱氟，并产生脱氟废产物。更具体地，该方法将PFAS中存在的有机氟转化为无机氟化物。因此，脱氟废产物可以被焚烧，同时减少有害气态PFC的排放。
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