| Title: |
A Special Hydrated Iron Oxyhydroxide for Catalyzing Persulfate to Control Chemical Wastewater Containing Fluoranthene, Phenanthrene, and Pyrene. |
| Authors: |
Wang, Yanyan, Wang, Weiqian, Liu, Fenwu, Wang, Qingyue, Wu, Shangrong |
| Source: |
Water (20734441); Dec2024, Vol. 16 Issue 23, p3536, 11p |
| Subject Terms: |
POLYCYCLIC aromatic hydrocarbons, CATALYST testing, FLUORANTHENE, POLLUTANTS, PYRENE, PHENANTHRENE |
| Abstract: |
Water pollution caused by fluoranthene (FLN), phenanthrene (PHE), and pyrene (PYR) has become an increasingly serious issue in recent years. Consequently, finding effective methods to remove these pollutants from aquatic environments is of paramount importance. This study investigated the removal rate of FLN, PHE, and PYR from simulated wastewater using persulfate (PS) and explored the effects of PS catalyzed by three different forms of schwertmannite (sch): sch-1, sch-2, and sch@BC (schwertmannite-biochar composite), and the BET of sch-1, sch-2, sch@BC has been detected, which were 1.09 cm3/g, 11.30 cm3/g, and 6.10 cm3/g. The results showed varying removal rates after a 1 h reaction time for different treatments: For FLN: sch-1+PS (98.5%), sch-2+PS (54.2%), sch@BC+PS (21.1%), and PS alone (14.8%). For PHE: sch-1+PS (94.3%), sch-2+PS (44.1%), sch@BC+PS (28.4%), and PS alone (7.6%). For PYR: sch-1+PS (97.2%), sch-2+PS (52.5%), sch@BC+PS (14.2%), and PS alone (1.7%). Among the catalysts tested, sch-2 (added 0.36 mL H2O2 five times) demonstrated excellent catalytic ability in enhancing the PS removal of FLN, PHE, and PYR. This research provides theoretical support for treating polycyclic aromatic hydrocarbon (PAH)-containing wastewater via persulfate oxidation catalyzed by schwertmannite. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |
