Aqueous film-forming foams (AFFFs) contain a mixture of organic chemicals, including per- and poly-fluorinated, alky sulfonate substances (PFAS) (1-5% w/w). Some longer-chain PFAS can be toxic, moderately bioaccumulative and persistent in environments. During the present work, decomposition of PFAS present in two commercially available AFFFs (ANSUL- and 3M-) was investigated using a sono-chemical reactor, with volume: 91 L. The reactor consists of 12 transducers with operating frequencies of 1 MHz or 500 kHz and total input power of 12 kW. Degradation of PFASs performed using various dilutions of AFFF revealed that releases of F^- and SO₄^-2 ions was inversely proportional to initial pH of up to 4. Defluorination of ANSUL-AFFF resulted in an increase in the concentration of F^- released from 55.6±0.3 µM (500× dilution) to 58.6±0.6 (25× dilution), while for 3M AFFF it increased from 19.9±0.7 µM (500× dilution) to 217.1±2.4 µM (25× dilution). Though amounts of F^- released were less for ANSUL-AFFF than for 3M-AFFF, there was a considerable increase in removal of TOC and release of SO₄^-2 present in ANSUL-AFFF. Approximately 90.5% and 26.6% reduction of perfluoroalkyl sulfonates (PFSA) and perfluoroalkyl carboxylates (PFCA) in 3M, respectively, and 38.4% reduction of fluorotelomer sulfonates in ANSUL-AFFF were achieved in 13 h. Estimated costs of energy for the treatment of ANSUL-AFFF and 3 M- AFFF at a 500× dilution were $0.015±0.0001/L and $0.019±0.0002/L, respectively.

水性成膜泡沫（AFFF）包含有机化学物质的混合物，包括全氟化和多氟化烷基磺酸盐物质（PFAS）（1-5％w / w）。某些长链PFAS在环境中可能具有毒性，适度的生物蓄积性和持久性。在当前工作中，使用体积为91 L的声波化学反应器研究了两种市售AFFF（ANSUL-和3M-）中PFAS的分解。该反应器由12个传感器组成，工作频率为1 MHz或500 kHz和总输入功率12 kW。使用AFFF的各种稀释液进行PFASs的降解表明的F释放^-和SO ₄ ^-2离子成反比高达4. ANSUL-AFFF的脱氟的初始pH导致增加在F的浓度^- 58.6±0.6（25×稀释液）从55.6±0.3μM（500×稀释）释放，而对于3M AFFF，从19.9±0.7 µM（500倍稀释度）增加到217.1±2.4 µM（25倍稀释度）。虽然的F量^-发布不太对安素-AFFF比3M-AFFF，有在去除TOC的大量增加和释放SO ₄ ^-2存在于ANSUL-AFFF中。在3小时内，全氟烷基磺酸盐（PFSA）和全氟烷基羧酸盐（PFCA）分别降低了约90.5％和26.6％，而ANSUL-AFFF中氟调聚物磺酸盐的降低了38.4％。500倍稀释度用于处理ANSUL-AFFF和3 M-AFFF的能源估计成本分别为$ 0.015±0.0001 / L和$ 0.019±0.0002 / L。