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Scope

Scope Details

Reference
Wu, B., Hao, S., Choi, Y., Higgins, C., P., Deeb, R., and Strathmann, T.J. (2019) Rapid destruction and defluorination of perfluorooctanesulfonate by alkaline hydrothermal reaction. - Environmental Science and Technology Letters
Treatment Process
Hydrothermal Treatment
Test Scale
Lab
Matrix
Other
Matrix Detail
Water spiked with PFOS
Data Detail
Percent defluorination for 28 experimental conditions (amendments and a control); percent PFOS removal for 16 conditions; PFHxA and PFPeA formation under 1 condition (additional data may be in supplemental material)

Condition

Open Condition
Treatment Temperature
Treatment Time
Time Units
Treatment Details
Open Condition 35090MinuteControl: only PFOS (50 mg/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment H2SO4 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment NaHSO5 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Zn (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Na2S2O8 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Ni (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment FeSO4 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment H2O2 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Na2S2O4 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment NaClO3 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment NaClO4 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Na2S2O5 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment HCl (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Kl (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment NaNO3 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment HNO3 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Fe(0) (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Na2SO3 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment NaClO (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Nano Fe (0) (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Ca(OH)2 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment K2CrO4 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Na2S2O3 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment Na2CO3 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment KMnO4 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment K2FeO4 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment NaBH4 (1 mol/L) in water at 350 °C for 90 min.
Open Condition 35090MinutePFOS (50 mg/L) and amendment NaOH (1 mol/L) in water at 350 °C for 90 min.
Open Condition 350480MinuteReaction conditions: PFOS (50 mg/L) and NaOH amendment (1,2.5, and 5 mol/L) in water at 350 °C for 0−480 min.

Thermal Treatment Results

Link to Results Record
Analyte
Condition
Effectiveness (%)
Effectiveness Measure
Initial Concentration
Post Concentration
Offgas Concentration
Additional Details
PFOS350 °C | 90 minute ≈2.8% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈0.5% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈1% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈1% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈1.7% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈1.8% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈2.1% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈2.3% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈2.3% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈2.6% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈2.5% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈2.7% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈2.9% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈4.5% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈7.3% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈4.5% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈6.3% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈9.6% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈10.7% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈15.1% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈15.5% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈15.9% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈20.6% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈20.7% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈27.2% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈76% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈79.1% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈79.9% Percent Defluorination≈50 mg/L Data interpolated from plot in Figure 1. (Top plot)
PFOS350 °C | 90 minute ≈2.4% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower left plot)
PFOS350 °C | 90 minute ≈1.4% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower left plot)
PFOS350 °C | 90 minute ≈1.2% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower left plot)
PFOS350 °C | 90 minute ≈22.7% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower left plot)
PFOS350 °C | 90 minute ≈1.3% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower left plot)
PFOS350 °C | 90 minute ≈15.6% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower left plot)
PFOS350 °C | 90 minute ≈0.1% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower left plot)
PFOS350 °C | 90 minute ≈8.6% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower left plot)
PFOS350 °C | 90 minute ≈57.5% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower right plot)
PFOS350 °C | 90 minute ≈74% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower right plot)
PFOS350 °C | 90 minute ≈67.6% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower right plot)
PFOS350 °C | 90 minute ≈57.2% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower right plot)
PFOS350 °C | 90 minute ≈62.8% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower right plot)
PFOS350 °C | 90 minute ≈92.8% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower right plot)
PFOS350 °C | 90 minute ≈93.5% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower right plot)
PFOS350 °C | 90 minute ≈89.4% Percent Removed≈50 mg/L Data interpolated from plot in Figure 1. (Lower right plot)
PFOS350 °C | 480 minute ≈83.4% Percent Remaining≈50 mg/L Timepoint ~10 minutes for 1M NAOH amendment. Interpolated from top plot in Figure 2.
PFOS350 °C | 480 minute ≈73% Percent Remaining≈50 mg/L Timepoint ~25 minutes for 1M NAOH amendment. Interpolated from top plot in Figure 2.
PFOS350 °C | 480 minute ≈11.3% Percent Remaining≈50 mg/L Timepoint ~90 minutes for 1M NAOH amendment. Interpolated from top plot in Figure 2.
PFOS350 °C | 480 minute ≈69.8% Percent Remaining≈50 mg/L Timepoint ~10 minutes for 2.5M NAOH amendment. Interpolated from top plot in Figure 2.
PFOS350 °C | 480 minute ≈14.1% Percent Remaining≈50 mg/L Timepoint ~25 minutes for 2.5M NAOH amendment. Interpolated from top plot in Figure 2.
PFOS350 °C | 480 minute ≈0.1% Percent Remaining≈50 mg/L Timepoint ~90 minutes for 2.5M NAOH amendment. Interpolated from top plot in Figure 2.
PFOS350 °C | 480 minute ≈6.6% Percent Remaining≈50 mg/L Timepoint ~10 minutes for 5M NAOH amendment. Interpolated from top plot in Figure 2.
PFOS350 °C | 480 minute ≈0.2% Percent Remaining≈50 mg/L Timepoint ~25 minutes for 5M NAOH amendment. Interpolated from top plot in Figure 2.
PFOS350 °C | 480 minute ND Percent Remaining≈50 mg/L Timepoint ~90 minutes for 5M NAOH amendment. Interpolated from top plot in Figure 2.
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Last updated on October 15, 2024.