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Condition Details

Reference
Strathmann, T.J., Higgins, C., and Deeb, R. (2020) Hydrothermal Technologies for On-Site Destruction of Site Investigation Wastes Contaminated with Per- and Polyfluoroalkyl Substances (PFAS) - Strategic Environmental Research and Development Program (SERDP)
Scope
Hydrothermal Treatment | Lab | Soil: PFAS-contaminated soils from Wurtsmith AFB, Jacksonville NAS, and Peterson AFB
Treatment Temperature (°C)
350
Treatent Time
90
Time Units
Minute
Treatment Details
5 mol/L NaOH amendment; 0.5 g of each soil were added to reactors together with 3 ml of the NaOH solution (20 wt% solid suspension) before sealing and subjecting to reaction conditions. pg. 30/80

Thermal Treatment Results

Link to Results Record
Analyte
Effectiveness (%)
Initial Concentration
Post Concentration
Offgas Concentration
Additional Details
PFPeS>99.94% 35 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFHxS>99.69% 194 ng/g <0.6 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFPeA>99.99% 146 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFHxA>99.99% 340 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFHpA>99.97% 35.3 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFOA>99.99% 150 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFNA>99.42% 1.73 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFDA>99.75% 7.85 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFUnA>99.75% 3.93 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFDoA>99.84% 12.5 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFOSA>99.99% 223 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
MeFOSA>99.68% 6.16 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
FOSAA>99.89% 18 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
N-MeFOSAA99.34% 619 ng/g 4.1 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
FtS 6:2>99.99% 215 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
FtS 8:2>99.99% 97.8 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
10:2 FTS>99.59% 4.88 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
6:2 UFTCA>91.3% 1.38 ng/g <0.12 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFPrS91.8% 16.2 ng/g 1.33 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFBS94.98% 156 ng/g 7.82 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFPeS94.63% 355 ng/g 19.1 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFHxS92.83% 3960 ng/g 284 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFHpS95.88% 62.8 ng/g 2.59 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFOS93.67% 22900 ng/g 1450 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFNS99.37% 1900 ng/g 11.9 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFDS99.54% 1390 ng/g 6.32 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFDoS99.83% 683 ng/g 1.19 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
Cl-O-PFNS>81.82% 0.11 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Wurtsmith AFB before and after alkaline hydrothermal treatment; Table 4.5.3 pg. 63/89
PFHxA81.23% 10.1 ng/g 1.89 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
PFOA>99.92% 12.6 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
PFDA>97.47% 0.79 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
PFOSA>99.93% 29.1 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
FtS 6:2>99.99% 139 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
FtS 8:2>99.96% 23.6 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
PFBS98.16% 5.37 ng/g 0.1 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
PFPeS>99.19% 2.46 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
PFHxS>99.22% 76.5 ng/g <0.6 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
PFHpS>66.67% 0.06 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
PFOS95.29% 490 ng/g 23.1 ng/g Measured PFAS composition in PFAS-contaminated soil from Jacksonville NAS before and after alkaline hydrothermal treatment; Table 4.5.4 pg. 64/89
PFPeA>99.99% 122 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFHxA99.67% 115 ng/g 0.38 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFOA94.46% 16.8 ng/g 0.93 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFDA-189.92% 0.18 ng/g 0.52 ng/g ***In increase in PFDA concentration is attributed to an artifact in the chemical analysis procedure. Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFOSA>99.93% 30 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
FtS 6:2>99.98% 47.5 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
FtS 8:2>99.97% 34.1 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFPrS>99.33% 9 ng/g <0.06 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFBS99.43% 47.2 ng/g 0.27 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFHpS>99.57% 4.68 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFOS99.72% 7310 ng/g 20.6 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFNS>99.98% 51.4 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
PFDS>98.43% 1.27 ng/g <0.02 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
Cl-PFOS>99.97% 36.8 ng/g <0.01 ng/g Measured PFAS composition in PFAS-contaminated soil from Peterson AFB before and after alkaline hydrothermal treatment; Table 4.5.5 pg. 64/89
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