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References

Reference Details

Citation
Wang et al 2015b
Author
Wang, F., Lu, X., Li, X., and Shih, K.
Title
Effectiveness and Mechanisms of Defluorination of Perfluorinated Alkyl Substances by Calcium Compounds during Waste Thermal Treatment
Source
Environmental Science and Technology
Publication Year
2015
Reference Category
Primary Sources
Reference Type
Peer Reviewed Journals
Source Details
DOI: 10.1021/es506234b
DOI
10.1021/es506234bExit
Non-Targeted Analysis Flag
No

Scope

Open Scope
Treatment Process
Scale
Matrix
Matrix DetailScope Detail
Open ScopePyrolysisLabOtherPure PFASTransformation ratio of 4 PFAS to CaF2, various combinations of temperature, time, and CaOH2

Condition

Open Condition
Scope
Temperature (°C)
Treatment Time
Condition Details
Open ConditionPyrolysis | Lab | Other: Pure PFAS35015 minutePFOS thermal treatment with Ca(OH)2.
Open ConditionPyrolysis | Lab | Other: Pure PFAS40015 minuteCo-treated with CaO
Open ConditionPyrolysis | Lab | Other: Pure PFAS30015 minuteCo treated with Co(OH)2
Open ConditionPyrolysis | Lab | Other: Pure PFAS40015 minutePFOS thermal treatment with Ca(OH)2.
Open ConditionPyrolysis | Lab | Other: Pure PFAS50015 minutePFOS thermal treatment with Ca(OH)2.
Open ConditionPyrolysis | Lab | Other: Pure PFAS60015 minutePFOS thermal treatment with Ca(OH)2.
Open ConditionPyrolysis | Lab | Other: Pure PFAS70015 minutePFOS thermal treatment with Ca(OH)2.
Open ConditionPyrolysis | Lab | Other: Pure PFAS80015 minutePFOS thermal treatment with Ca(OH)2.
Open ConditionPyrolysis | Lab | Other: Pure PFAS90015 minutePFOS thermal treatment with Ca(OH)2.
Open ConditionPyrolysis | Lab | Other: Pure PFAS50015 minuteCo treated with CaO
Open ConditionPyrolysis | Lab | Other: Pure PFAS60015 minuteCo treated with CaO
Open ConditionPyrolysis | Lab | Other: Pure PFAS70015 minuteCo treated with CaO
Open ConditionPyrolysis | Lab | Other: Pure PFAS80015 minuteCo-treated with CaO
Open ConditionPyrolysis | Lab | Other: Pure PFAS90015 minuteCo treated with CaO
Open ConditionPyrolysis | Lab | Other: Pure PFAS50015 minuteCo treatment with Ca(CO3)2

Thermal Treatment Results

Link to Results Record
Analyte
Scope
Condition
Effectiveness (%)
Initial Concentration
Post Concentration
Offgas Concentration
Additional Details
PFOAPyrolysis | Lab | Other 400 °C | 15 minute ≈40%
PFOAPyrolysis | Lab | Other 500 °C | 15 minute ≈30%
PFHxAPyrolysis | Lab | Other 500 °C | 15 minute ≈70%
PFHxSPyrolysis | Lab | Other 400 °C | 15 minute ≈60%
PFHxSPyrolysis | Lab | Other 600 °C | 15 minute ≈70%
PFHxSPyrolysis | Lab | Other 700 °C | 15 minute ≈90%
PFHxSPyrolysis | Lab | Other 800 °C | 15 minute ≈90%
PFHxSPyrolysis | Lab | Other 900 °C | 15 minute ≈90%
PFOSAPyrolysis | Lab | Other 400 °C | 15 minute ≈20%
PFOSAPyrolysis | Lab | Other 500 °C | 15 minute ≈30%
PFOSPyrolysis | Lab | Other 300 °C | 15 minute ≈0%
PFOSPyrolysis | Lab | Other 350 °C | 15 minute ≈60% Ca (OH)2 strongly react with PFOS to form crystal CaF2 at 350 °C
PFOSPyrolysis | Lab | Other 400 °C | 15 minute ≈65%
PFOSPyrolysis | Lab | Other 400 °C | 15 minute ≈62.5%
PFOSPyrolysis | Lab | Other 400 °C | 15 minute <20%
PFOSPyrolysis | Lab | Other 400 °C | 15 minute ≈65%
PFOSPyrolysis | Lab | Other 500 °C | 15 minute ≈85%
PFOSPyrolysis | Lab | Other 500 °C | 15 minute ≈75%
PFOSPyrolysis | Lab | Other 500 °C | 15 minute ≈72.5%
PFOSPyrolysis | Lab | Other 500 °C | 15 minute ≈50%
PFOSPyrolysis | Lab | Other 500 °C | 15 minute ≈70%
PFOSPyrolysis | Lab | Other 600 °C | 15 minute ≈95%
PFOSPyrolysis | Lab | Other 600 °C | 15 minute ≈80%
PFOSPyrolysis | Lab | Other 600 °C | 15 minute ≈55%
PFOSPyrolysis | Lab | Other 600 °C | 15 minute ≈80%
PFOSPyrolysis | Lab | Other 700 °C | 15 minute ≈100%
PFOSPyrolysis | Lab | Other 700 °C | 15 minute ≈80%
PFOSPyrolysis | Lab | Other 700 °C | 15 minute ≈50%
PFOSPyrolysis | Lab | Other 700 °C | 15 minute ≈82.5%
PFOSPyrolysis | Lab | Other 800 °C | 15 minute ≈80%
PFOSPyrolysis | Lab | Other 800 °C | 15 minute ≈70%
PFOSPyrolysis | Lab | Other 800 °C | 15 minute ≈98%
PFOSPyrolysis | Lab | Other 800 °C | 15 minute ≈82.5%
PFOSPyrolysis | Lab | Other 900 °C | 15 minute ≈97.5%
PFOSPyrolysis | Lab | Other 900 °C | 15 minute ≈80%
PFOSPyrolysis | Lab | Other 900 °C | 15 minute ≈60%
PFOSPyrolysis | Lab | Other 900 °C | 15 minute ≈85%
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